Napier grass, an important forage crop with potentials in multi-purpose applications, is widely grown throughout the tropics and subtropics. Low temperature severely limits its productivity and geographical distributi...Napier grass, an important forage crop with potentials in multi-purpose applications, is widely grown throughout the tropics and subtropics. Low temperature severely limits its productivity and geographical distribution in temperate regions of the world. In this study, we investigated the effect of exogenous abscisic Acid(ABA) on chilling tolerance of napier grass(Pennisetum purpureum Schum.) seedlings. Seven-day-old napier grass seedlings were cultured in dd H_2O or ABA solution at different concentrations and exposed to 1 ℃ for different time durations. The chilling injury, membrane stability index(MSI) and proline content were estimated from leaf samples. The results showed that there was obvious morphological injury of leaf blighting and restrained growth for the seedlings under chilling stress, but this damage can be largely reduced(by 2/3) when the seedlings were treated by 100 μmol/L ABA in the culture solution, and that the application of exogenous ABA can help to maintain a good stability of leaf cell membrane as expressed by a high MSI value and a low level of proline in leaf cells. These results suggested that exogenous ABA can significantly alleviate chilling injury in napier grass seedlings by maintaining the stability of leaf cell membrane during chilling stress, and that the chilling tolerance was not ensured by a proline accumulation although a passive accumulation of proline was observed in the seedlings under chilling stress. Our results lay a preliminary foundation for future investigations on the molecular mechanisms of ABA induced chilling or freezing tolerance in napier grass.展开更多
The development prospect of Pennisetum Sinese Roxb. is receiving much concern of domestic researchers. In this paper,literature of Pennisetum Sinese Roxb. was taken as basis,and bibliometric analysis method was used t...The development prospect of Pennisetum Sinese Roxb. is receiving much concern of domestic researchers. In this paper,literature of Pennisetum Sinese Roxb. was taken as basis,and bibliometric analysis method was used to make statistics of distribution of years,research institutions,authors,and research fields. The results showed that research fields of Pennisetum Sinese Roxb. in China were mainly ecological restoration,accounting for 13. 27% of the total literature; the research took on dynamic and diversified cooperation trend. In recent 5 years,the number of papers significantly increased,accounting for 93. 04% of the total literature. The distribution of authors and regions were relatively concentrated,but the overall level of research is low.展开更多
In Guizhou Province, the area of rocky desertification land is 3.023 8 million hm^2, accounting for 17.16% of total area of land in the province. Rocky desertification is the most important ecological problem that res...In Guizhou Province, the area of rocky desertification land is 3.023 8 million hm^2, accounting for 17.16% of total area of land in the province. Rocky desertification is the most important ecological problem that restricts the economic and social development in Guizhou, so the primary task of ecological construction in Guizhou Province is to curb rocky desertification. How to effectively, efficiently and persistently use rocky desertification land is not only the key to the improvement of ecological environment, but also an urgent problem solved for local people's survival and anti-poverty. Due to having developed roots, growing fast, high yield of grass, strong resistance to drought, and high regeneration capacity, Pennisetum sinese Roxb has become a new method to control rocky desertification. How to use P. sinese Roxb efficiently becomes the key to the ecological control of rocky desertification by P. sinese Roxb. In this study, the ecological agriculture development model of "P. sinese Roxb-rocky desertification control-edible mushrooms" was studied, and the effect of cultivating Pleurotus eryngii with P. sinese Roxb in rocky desertification land was analyzed. Moreover, an outlook for the application of P. sinese Roxb in rocky desertification areas of Guizhou was given.展开更多
Pearl millet(Pennisetum spicatum(L.)Körn.)and maize(Zea mays L.)are C_(4)grass species grown for feeding humans and animals in Almadinah Almunawwarah,which is in the western part of Saudi Arabia.During the winter...Pearl millet(Pennisetum spicatum(L.)Körn.)and maize(Zea mays L.)are C_(4)grass species grown for feeding humans and animals in Almadinah Almunawwarah,which is in the western part of Saudi Arabia.During the winter,the mean temperature,which drops to 14℃,represents a major problem for the growth of these species in this region.Therefore,the objectives of this research were to investigate the growth response and the photosynthetic performance of P.spicatum and Z.mays under a low temperature stress.The treatments involved daytime and nighttime temperatures of 14/12℃(low temperature)and 24/22℃(optimum temperature).The results indicated that low temperature significantly reduced all growth and physiological parameters,including seed germination,leaf expansion,leaf area,shoot length and root length of the two species compared to those of the control.Additionally,the low temperature significantly decreased the light-saturated assimilation rate(A_(sat)),quantum yield(ϕ),saturated rate of carbon dioxide uptake(A_(max))and efficiency of carboxylation on both species compared to those of the control.Moreover,the values of F_(v)/F_(m)and the chlorophyll contents of both species were significantly reduced by low temperature compared to those of the control.It can be concluded that both species had little tolerance to low temperatures.展开更多
Poor soil is one of the agricultural world’s principal challenges, inciting the use of chemical fertilizer’s to improve overall soil quality. However, the use of chemical fertilizer has significant and cascading env...Poor soil is one of the agricultural world’s principal challenges, inciting the use of chemical fertilizer’s to improve overall soil quality. However, the use of chemical fertilizer has significant and cascading environmental consequences. Therefore, the use of beneficial microbes’ inoculation in treating poor soil is a considerably ecofriendly sustainable solution. In the current study, we supplemented nutrient-deprived soil with plant growth promoting bacteria (PGPB), Pseudomonas fluorescens. The bacterial inoculations of Pseudomonas fluorescenswere added to the poor soil following two days post-sowing of Zea mays var. amylacea and Pennisetumamericanum p. seedlings. Metabolite analyses were conducted two months after treatment for both shoots and roots using nuclear magnetic resonance method (NMR). The data indicated significant changes in 19 metabolites relative to control in both plants shoot and roots. Among these metabolites, 7 were upregulated in roots of Zea mays var. amylacea, and 9 metabolites were upregulated in roots of Pennisetum americanum p. The PGPB enhanced sugars (fructose, glucose, sucrose) and amino acids (glutamate, alanine and succinate) in roots, while down regulating in shoots of Pennisetum americanum p. The Pseudomonas fluorescens induced, predominantly,Aminoacyl-tRNA related metabolite, and Alanine, aspartate and glutamate metabolite biosynthesis in Zea mays var. amylacea), whereas PGPB induced metabolites in Pennisetum americanum p., dominated by up regulated carbohydrate related (starch and sucrose) metabolites. The difference in some metabolic response between the two plants indicated that PGPB influence has a species-specific manner.展开更多
Eight cultivars of napiergrass (Pennisetum purpureum Schumach.), namely Dwarf, Muaklek, Bana, Taiwan A148, Common, Wruk wona, Tifton and Kampheng San, were grown in central Thailand in 2008-2009 and biomass yield, che...Eight cultivars of napiergrass (Pennisetum purpureum Schumach.), namely Dwarf, Muaklek, Bana, Taiwan A148, Common, Wruk wona, Tifton and Kampheng San, were grown in central Thailand in 2008-2009 and biomass yield, chemical composition and theoretical ethanol yield were measured. Harvests were made every 3 months. Biomass yield and cell wall compositions differed significantly (P 0.05) among cultivars. Tifton produced the highest annual biomass yield at 58.3 t/ha followed by Wruk wona (52.1 t/ha), while the lowest yield of 27.1 t/ha was in Dwarf. Biomass yield varied with season with highest yields in May and lowest in February during the dry season. Cell wall concentrations were higher in the tall cultivars than in the short ones (Dwarf and Muaklek) (P 0.05). Theoretical ethanol conversion efficiency ranged from 350 to 460 L/t DM among the cultivars following pretreatment with steam explosion. While a number of cultivars showed significant potential for use as biofuels in central Thailand, Tifton seemed to be the most promising.展开更多
In order to contribute to the improvement of guinea pig nutrition through the use of unconventional vegetable protein sources (<em>Moringa oleifera</em> seeds), experimental trials were carried out at the ...In order to contribute to the improvement of guinea pig nutrition through the use of unconventional vegetable protein sources (<em>Moringa oleifera</em> seeds), experimental trials were carried out at the Animal Production and Nutrition Research Unit (URPRONAN) of the University of Dschang in April 2018.<em> Moringa oleifera</em> seeds from North Cameroon were divided into three treatments: the first consisted of whole <em>Moringa oleifera</em> seeds (MO-whole), the second of Moringa oleifera seeds soaked in cold water for 24 hours (MO-water) and the third of peeled <em>Moringa oleifera</em> seeds (MO-peeled). The seeds belonging to these three treatments were analyzed for the determination of the chemical composition before being incorporated into the different concentrates. Each concentrate was then granulated and combined with <em>Pennisetum purpureum</em> to make up the different rations. 40 English Guinea pigs with an average weight of 350 ± 50 g were used to evaluate the ingestion and digestibility of each ration. During the digestibility test which lasted 17 days (10 days of adaptation and 07 days of data collection), each ration was repeated on 10 Guinea pigs. The main results showed that the total tannin and phenol contents decreased significantly (p < 0.05) in M. oleifera seeds soaked for 24 hours (8.2% DM;2884 mg/100gMS) and pulped (13.6% DM;3156 mg/100gMS). The intake of crude cellulose (10.26 gMS/d) and crude protein (3.21 gMS/d) in rations containing whole M. oleifera seeds was significantly (p < 0.05) lower than in other rations. Similarly, crude protein digestibility (77.04%) of rations containing whole M. oleifera seeds was significantly (p < 0.05) lower than other rations. This study shows that <em>Moringa oleifera</em> seeds soaked for 24 hours or pulped can be used in guinea pig feed as an alternative source of protein.展开更多
<span style="font-family:Verdana;">The</span><span><span style="font-family:Verdana;"> use of organic manures, constitute an alternative to that of polluting artificial fert...<span style="font-family:Verdana;">The</span><span><span style="font-family:Verdana;"> use of organic manures, constitute an alternative to that of polluting artificial fertilizers. In this study, the effect of various levels of hen droppings fertilization on the production of biomass, chemical composition and carrying capacity of </span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i> </span><span style="font-family:Verdana;">were evaluated at the Research and Experimental Farm (REF) and at the Animal Nutrition and Feeding Laboratory of </span><span style="font-family:Verdana;">the University of Dschang, between April and September 2016. A completely randomized block design comparing three nitrogen level of fertilization in hen droppings form (0;100 and 200 kg N/ha) on 4 m</span><sup><span style="font-family:Verdana;">2</span></sup><span style="font-family:Verdana;"> plot of </span><span style="font-family:Verdana;"><i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i><span style="font-family:Verdana;"> were used. Each treatment was carried out in four replications for a total of 12 experimental plots. Then a sample of 500 g of forage has been collected in the center of each plot, then dried and used for the evaluation of the biomass and the</span><span><span style="font-family:Verdana;"> chemical composition of <i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i>, </span><span style="font-family:Verdana;">according to the level of fertilization and the cutting frequency. The results showed that the fertilization with the hen droppings positively influenced (p < 0.05) regenera</span><span style="font-family:Verdana;">tion at the first cutting frequency and the highest value (47.12 cm) was obtained with of 200 kg N/ha rate of fertilization. The biomass of this fodder increased significantly (p < 0.05) with the level of fertilization with hen droppings. Besides, it decrease</span><span style="font-family:Verdana;">s</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> with the increasing cutting of frequency whatever the level of fertilization. Independently of the fertilization and the cutting frequency, the maximum biomass (6.22 t DM/ha) was obtained with the first cutting at the 200 kg N/ha of hen droppings fertilization. The fertilization influenced in variable way the chemical composition of </span><span style="font-family:Verdana;"><i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i></span><span style="font-family:Verdana;">. The dry matter and organic matter content decrease with the level of fertilization and the highest values (83.79% and 89.39% respectively for the DM and OM) were obtained on the control plot at the third and the first cutting. Moreover, the ash and crude protein contents increased significantly (p < 0.05) with the cutting frequency of cutting and the level of fertilization applied. The highest ash (19.34% DM) and CP (20.04% DM) contents were obtained with of 200 kg N/ha of hen droppings at the second cutting frequency.</span>展开更多
A total of 30 Nubian adult goats were randomly divided into three groups,with 10 goats in each group. The goats in different groups were fed with pennisetum. purpureum Schum cv. Taiwan,[P. Purpureum. cv. Mott ×( ...A total of 30 Nubian adult goats were randomly divided into three groups,with 10 goats in each group. The goats in different groups were fed with pennisetum. purpureum Schum cv. Taiwan,[P. Purpureum. cv. Mott ×( P. americanum × P. purureum) cv. Guimu No. 1] and P. purpureum cv. Southern China respectively. In the 60-days-test,the nutritional value of the forages,the intake,growth and economic benefits of the goats were determined and analyzed. The results showed that,the weight gain of the goats feeding with P. purpureum Schum cv. Taiwan was remarkable,with the daily weight gain reaching( 144. 44 ±17. 80) g,which were 32. 37% and 88. 48% higher than the control groups. The feed reward in P. purpureum Schum cv. Taiwan group was the highest,with feed conversion rate of 19. 10∶1 and the significant economic benefits. On the whole,P. purpureum Schum cv. Taiwan with a high nutritional value and a good palatability was a kind of excellent forages for goats.展开更多
To explore the feeding value of Pennisetum purpureum Schum cv. Guiminyin in production of geese,effects of feeding the green fodder on growth performance of geese were studied,while P. purpureum K. Scbumacb × P. ...To explore the feeding value of Pennisetum purpureum Schum cv. Guiminyin in production of geese,effects of feeding the green fodder on growth performance of geese were studied,while P. purpureum K. Scbumacb × P. typhoideum Rich cv. Reyan No. 4 was used as control. The results showed that P. purpureum Schum cv. Guiminyin had high biomass and good nutritional quality,and geese intake of the forage was greater than that of the control variety. The average daily gain was(51. 45 ± 3. 49) g/goose,which was increased by 13. 36% compared with control; feed gain ratio was(4. 93 ± 0. 35) %,and feed consumption was reduced by 19. 47% compared with control( P < 0. 05). Thus,it could be concluded that feeding geese with P. purpureum Schum cv. Guiminyin could obtain good economic benefit.展开更多
The study aimed to research the forage value of Pennisetum purpureum Schum cv.Guiminyin in dairy industry and then provide scientific support for feeding jersey cattle with P.purpureum Schum cv.Guiminyin.Totally 20 je...The study aimed to research the forage value of Pennisetum purpureum Schum cv.Guiminyin in dairy industry and then provide scientific support for feeding jersey cattle with P.purpureum Schum cv.Guiminyin.Totally 20 jersey cattle at lactation stage were selected and divided into two groups randomly,10 cattle each group.The cattle were fed with P.purpureum Schum cv.Guiminyin and P.purpureum cv.Mott×(P.americanum×P.purureum)cv.Guimu No.1,respectively.The results showed that P.purpureum Schum cv.Guiminyin performed well in both nutritional value and palatability,and received remarkable effects on jersey cattle.The milk yield was 5.4%higher than that of before test,and the average daily milk yield was(11.65±0.07)kg/cattle.Compared with control group,milk fat percentage,lactoprotein content and overall milk-solid content were improved somewhat.Feeding jersey cattle with P.purpureum Schum cv.Guiminyin at lactation stage could increase their milk yield and milk quality.展开更多
[Objectives]The paper was to study the cutting propagation technique of Pennisetum purpureum Schum and to provide a technical reference for establishing an efficient cutting propagation method.[Methods]Six treatments ...[Objectives]The paper was to study the cutting propagation technique of Pennisetum purpureum Schum and to provide a technical reference for establishing an efficient cutting propagation method.[Methods]Six treatments were set up using P.purpureum cv.Guiminyin and P.purpureum cv.Guimu-1 as test materials,including 1-node oblique insertion,1-node oblique insertion+rooting powder,1-node transverse burial,2-node oblique insertion,2-node oblique insertion+rooting powder and 2-node transverse burial.The following indices were observed and determined for P.purpureum cuttings:emergence rate,rooting rate,root number,longest root length,fresh root weight,plant height,number of tillers,number of leaves,and fresh stem and leaf weight.[Results]In the 2-node cutting+rooting powder treatment,Guiminyin and Guimu-1 exhibited the highest survival rate,root growth indices,and stem and leaf growth indices,with the emergence rates of 94.29%and 90.26%,respectively.The 2-node cutting treatment followed closely behind,while the 1-node cutting treatment had the lowest indices.Under the same treatment,Guimuyin exhibited higher mean values for plant height,number of leaves,fresh stem and leaf weight,longest root length,and fresh root weight compared to Guimu-1.However,it had lower mean number of tillers,and emergence rate and rooting rate of the 1-node cutting treatment compared to Guimu-1.[Conclusions]The P.purpureum cuttings thrived in the 2-node cutting+rooting powder treatment,and the overall cutting effect of Guiminyin was superior to that of Guimu-1.展开更多
基金Supported by an R&D Program of the China National Engineering Research Center of JUNCAO Technology(JCGG14010)
文摘Napier grass, an important forage crop with potentials in multi-purpose applications, is widely grown throughout the tropics and subtropics. Low temperature severely limits its productivity and geographical distribution in temperate regions of the world. In this study, we investigated the effect of exogenous abscisic Acid(ABA) on chilling tolerance of napier grass(Pennisetum purpureum Schum.) seedlings. Seven-day-old napier grass seedlings were cultured in dd H_2O or ABA solution at different concentrations and exposed to 1 ℃ for different time durations. The chilling injury, membrane stability index(MSI) and proline content were estimated from leaf samples. The results showed that there was obvious morphological injury of leaf blighting and restrained growth for the seedlings under chilling stress, but this damage can be largely reduced(by 2/3) when the seedlings were treated by 100 μmol/L ABA in the culture solution, and that the application of exogenous ABA can help to maintain a good stability of leaf cell membrane as expressed by a high MSI value and a low level of proline in leaf cells. These results suggested that exogenous ABA can significantly alleviate chilling injury in napier grass seedlings by maintaining the stability of leaf cell membrane during chilling stress, and that the chilling tolerance was not ensured by a proline accumulation although a passive accumulation of proline was observed in the seedlings under chilling stress. Our results lay a preliminary foundation for future investigations on the molecular mechanisms of ABA induced chilling or freezing tolerance in napier grass.
基金Supported by Emergency Management Project of National Natural Science Foundation(31160292)
文摘The development prospect of Pennisetum Sinese Roxb. is receiving much concern of domestic researchers. In this paper,literature of Pennisetum Sinese Roxb. was taken as basis,and bibliometric analysis method was used to make statistics of distribution of years,research institutions,authors,and research fields. The results showed that research fields of Pennisetum Sinese Roxb. in China were mainly ecological restoration,accounting for 13. 27% of the total literature; the research took on dynamic and diversified cooperation trend. In recent 5 years,the number of papers significantly increased,accounting for 93. 04% of the total literature. The distribution of authors and regions were relatively concentrated,but the overall level of research is low.
基金Supported by Reform Transformation Project of Guizhou Province(QKHT Z[2013]4006)Science and Technology Planning Project of Guizhou Province(QKHN G[2014]4002,QKH NY[2014]3063)
文摘In Guizhou Province, the area of rocky desertification land is 3.023 8 million hm^2, accounting for 17.16% of total area of land in the province. Rocky desertification is the most important ecological problem that restricts the economic and social development in Guizhou, so the primary task of ecological construction in Guizhou Province is to curb rocky desertification. How to effectively, efficiently and persistently use rocky desertification land is not only the key to the improvement of ecological environment, but also an urgent problem solved for local people's survival and anti-poverty. Due to having developed roots, growing fast, high yield of grass, strong resistance to drought, and high regeneration capacity, Pennisetum sinese Roxb has become a new method to control rocky desertification. How to use P. sinese Roxb efficiently becomes the key to the ecological control of rocky desertification by P. sinese Roxb. In this study, the ecological agriculture development model of "P. sinese Roxb-rocky desertification control-edible mushrooms" was studied, and the effect of cultivating Pleurotus eryngii with P. sinese Roxb in rocky desertification land was analyzed. Moreover, an outlook for the application of P. sinese Roxb in rocky desertification areas of Guizhou was given.
文摘Pearl millet(Pennisetum spicatum(L.)Körn.)and maize(Zea mays L.)are C_(4)grass species grown for feeding humans and animals in Almadinah Almunawwarah,which is in the western part of Saudi Arabia.During the winter,the mean temperature,which drops to 14℃,represents a major problem for the growth of these species in this region.Therefore,the objectives of this research were to investigate the growth response and the photosynthetic performance of P.spicatum and Z.mays under a low temperature stress.The treatments involved daytime and nighttime temperatures of 14/12℃(low temperature)and 24/22℃(optimum temperature).The results indicated that low temperature significantly reduced all growth and physiological parameters,including seed germination,leaf expansion,leaf area,shoot length and root length of the two species compared to those of the control.Additionally,the low temperature significantly decreased the light-saturated assimilation rate(A_(sat)),quantum yield(ϕ),saturated rate of carbon dioxide uptake(A_(max))and efficiency of carboxylation on both species compared to those of the control.Moreover,the values of F_(v)/F_(m)and the chlorophyll contents of both species were significantly reduced by low temperature compared to those of the control.It can be concluded that both species had little tolerance to low temperatures.
文摘Poor soil is one of the agricultural world’s principal challenges, inciting the use of chemical fertilizer’s to improve overall soil quality. However, the use of chemical fertilizer has significant and cascading environmental consequences. Therefore, the use of beneficial microbes’ inoculation in treating poor soil is a considerably ecofriendly sustainable solution. In the current study, we supplemented nutrient-deprived soil with plant growth promoting bacteria (PGPB), Pseudomonas fluorescens. The bacterial inoculations of Pseudomonas fluorescenswere added to the poor soil following two days post-sowing of Zea mays var. amylacea and Pennisetumamericanum p. seedlings. Metabolite analyses were conducted two months after treatment for both shoots and roots using nuclear magnetic resonance method (NMR). The data indicated significant changes in 19 metabolites relative to control in both plants shoot and roots. Among these metabolites, 7 were upregulated in roots of Zea mays var. amylacea, and 9 metabolites were upregulated in roots of Pennisetum americanum p. The PGPB enhanced sugars (fructose, glucose, sucrose) and amino acids (glutamate, alanine and succinate) in roots, while down regulating in shoots of Pennisetum americanum p. The Pseudomonas fluorescens induced, predominantly,Aminoacyl-tRNA related metabolite, and Alanine, aspartate and glutamate metabolite biosynthesis in Zea mays var. amylacea), whereas PGPB induced metabolites in Pennisetum americanum p., dominated by up regulated carbohydrate related (starch and sucrose) metabolites. The difference in some metabolic response between the two plants indicated that PGPB influence has a species-specific manner.
文摘Eight cultivars of napiergrass (Pennisetum purpureum Schumach.), namely Dwarf, Muaklek, Bana, Taiwan A148, Common, Wruk wona, Tifton and Kampheng San, were grown in central Thailand in 2008-2009 and biomass yield, chemical composition and theoretical ethanol yield were measured. Harvests were made every 3 months. Biomass yield and cell wall compositions differed significantly (P 0.05) among cultivars. Tifton produced the highest annual biomass yield at 58.3 t/ha followed by Wruk wona (52.1 t/ha), while the lowest yield of 27.1 t/ha was in Dwarf. Biomass yield varied with season with highest yields in May and lowest in February during the dry season. Cell wall concentrations were higher in the tall cultivars than in the short ones (Dwarf and Muaklek) (P 0.05). Theoretical ethanol conversion efficiency ranged from 350 to 460 L/t DM among the cultivars following pretreatment with steam explosion. While a number of cultivars showed significant potential for use as biofuels in central Thailand, Tifton seemed to be the most promising.
文摘In order to contribute to the improvement of guinea pig nutrition through the use of unconventional vegetable protein sources (<em>Moringa oleifera</em> seeds), experimental trials were carried out at the Animal Production and Nutrition Research Unit (URPRONAN) of the University of Dschang in April 2018.<em> Moringa oleifera</em> seeds from North Cameroon were divided into three treatments: the first consisted of whole <em>Moringa oleifera</em> seeds (MO-whole), the second of Moringa oleifera seeds soaked in cold water for 24 hours (MO-water) and the third of peeled <em>Moringa oleifera</em> seeds (MO-peeled). The seeds belonging to these three treatments were analyzed for the determination of the chemical composition before being incorporated into the different concentrates. Each concentrate was then granulated and combined with <em>Pennisetum purpureum</em> to make up the different rations. 40 English Guinea pigs with an average weight of 350 ± 50 g were used to evaluate the ingestion and digestibility of each ration. During the digestibility test which lasted 17 days (10 days of adaptation and 07 days of data collection), each ration was repeated on 10 Guinea pigs. The main results showed that the total tannin and phenol contents decreased significantly (p < 0.05) in M. oleifera seeds soaked for 24 hours (8.2% DM;2884 mg/100gMS) and pulped (13.6% DM;3156 mg/100gMS). The intake of crude cellulose (10.26 gMS/d) and crude protein (3.21 gMS/d) in rations containing whole M. oleifera seeds was significantly (p < 0.05) lower than in other rations. Similarly, crude protein digestibility (77.04%) of rations containing whole M. oleifera seeds was significantly (p < 0.05) lower than other rations. This study shows that <em>Moringa oleifera</em> seeds soaked for 24 hours or pulped can be used in guinea pig feed as an alternative source of protein.
文摘<span style="font-family:Verdana;">The</span><span><span style="font-family:Verdana;"> use of organic manures, constitute an alternative to that of polluting artificial fertilizers. In this study, the effect of various levels of hen droppings fertilization on the production of biomass, chemical composition and carrying capacity of </span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i> </span><span style="font-family:Verdana;">were evaluated at the Research and Experimental Farm (REF) and at the Animal Nutrition and Feeding Laboratory of </span><span style="font-family:Verdana;">the University of Dschang, between April and September 2016. A completely randomized block design comparing three nitrogen level of fertilization in hen droppings form (0;100 and 200 kg N/ha) on 4 m</span><sup><span style="font-family:Verdana;">2</span></sup><span style="font-family:Verdana;"> plot of </span><span style="font-family:Verdana;"><i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i><span style="font-family:Verdana;"> were used. Each treatment was carried out in four replications for a total of 12 experimental plots. Then a sample of 500 g of forage has been collected in the center of each plot, then dried and used for the evaluation of the biomass and the</span><span><span style="font-family:Verdana;"> chemical composition of <i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i>, </span><span style="font-family:Verdana;">according to the level of fertilization and the cutting frequency. The results showed that the fertilization with the hen droppings positively influenced (p < 0.05) regenera</span><span style="font-family:Verdana;">tion at the first cutting frequency and the highest value (47.12 cm) was obtained with of 200 kg N/ha rate of fertilization. The biomass of this fodder increased significantly (p < 0.05) with the level of fertilization with hen droppings. Besides, it decrease</span><span style="font-family:Verdana;">s</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> with the increasing cutting of frequency whatever the level of fertilization. Independently of the fertilization and the cutting frequency, the maximum biomass (6.22 t DM/ha) was obtained with the first cutting at the 200 kg N/ha of hen droppings fertilization. The fertilization influenced in variable way the chemical composition of </span><span style="font-family:Verdana;"><i></i></span><i><i><span style="font-family:Verdana;">P</span></i><span><span style="font-family:Verdana;">. </span><i><span style="font-family:Verdana;">clandestinum</span></i><span style="font-family:Verdana;"></span></span></i></span><span style="font-family:Verdana;">. The dry matter and organic matter content decrease with the level of fertilization and the highest values (83.79% and 89.39% respectively for the DM and OM) were obtained on the control plot at the third and the first cutting. Moreover, the ash and crude protein contents increased significantly (p < 0.05) with the cutting frequency of cutting and the level of fertilization applied. The highest ash (19.34% DM) and CP (20.04% DM) contents were obtained with of 200 kg N/ha of hen droppings at the second cutting frequency.</span>
基金Supported by Provincial Bureau of Science and Technology Project(2010001)Province agricultural science and technology achievements transformation projects(1346004-4)
文摘A total of 30 Nubian adult goats were randomly divided into three groups,with 10 goats in each group. The goats in different groups were fed with pennisetum. purpureum Schum cv. Taiwan,[P. Purpureum. cv. Mott ×( P. americanum × P. purureum) cv. Guimu No. 1] and P. purpureum cv. Southern China respectively. In the 60-days-test,the nutritional value of the forages,the intake,growth and economic benefits of the goats were determined and analyzed. The results showed that,the weight gain of the goats feeding with P. purpureum Schum cv. Taiwan was remarkable,with the daily weight gain reaching( 144. 44 ±17. 80) g,which were 32. 37% and 88. 48% higher than the control groups. The feed reward in P. purpureum Schum cv. Taiwan group was the highest,with feed conversion rate of 19. 10∶1 and the significant economic benefits. On the whole,P. purpureum Schum cv. Taiwan with a high nutritional value and a good palatability was a kind of excellent forages for goats.
基金Supported by National Science and Technology Project(2011BAD17B00)Science and Technology Project of Guangxi Provincial Bureau(GYMK201633019)+1 种基金Fund of Distinguished Experts in Guangxi Province&Guangxi Engineering Technology Center of Grassland Science(2015GCZX014)National Modern Agricultural Industry Technology System of Guangxi Beef Cattle,Mutton Sheep Industry Innovation Team(nycytxgxcxtd-09-04)
文摘To explore the feeding value of Pennisetum purpureum Schum cv. Guiminyin in production of geese,effects of feeding the green fodder on growth performance of geese were studied,while P. purpureum K. Scbumacb × P. typhoideum Rich cv. Reyan No. 4 was used as control. The results showed that P. purpureum Schum cv. Guiminyin had high biomass and good nutritional quality,and geese intake of the forage was greater than that of the control variety. The average daily gain was(51. 45 ± 3. 49) g/goose,which was increased by 13. 36% compared with control; feed gain ratio was(4. 93 ± 0. 35) %,and feed consumption was reduced by 19. 47% compared with control( P < 0. 05). Thus,it could be concluded that feeding geese with P. purpureum Schum cv. Guiminyin could obtain good economic benefit.
文摘The study aimed to research the forage value of Pennisetum purpureum Schum cv.Guiminyin in dairy industry and then provide scientific support for feeding jersey cattle with P.purpureum Schum cv.Guiminyin.Totally 20 jersey cattle at lactation stage were selected and divided into two groups randomly,10 cattle each group.The cattle were fed with P.purpureum Schum cv.Guiminyin and P.purpureum cv.Mott×(P.americanum×P.purureum)cv.Guimu No.1,respectively.The results showed that P.purpureum Schum cv.Guiminyin performed well in both nutritional value and palatability,and received remarkable effects on jersey cattle.The milk yield was 5.4%higher than that of before test,and the average daily milk yield was(11.65±0.07)kg/cattle.Compared with control group,milk fat percentage,lactoprotein content and overall milk-solid content were improved somewhat.Feeding jersey cattle with P.purpureum Schum cv.Guiminyin at lactation stage could increase their milk yield and milk quality.
基金the Fundamental Research Funds for Sichuan Animal Science Academy(SASA202106)the Modern Agricultural Industry System Sichuan Mutton Sheep Innov Team(sccxtd-2023-14)Sichuan Province Breeding Research Grant(2021YFYZ0013).
文摘[Objectives]The paper was to study the cutting propagation technique of Pennisetum purpureum Schum and to provide a technical reference for establishing an efficient cutting propagation method.[Methods]Six treatments were set up using P.purpureum cv.Guiminyin and P.purpureum cv.Guimu-1 as test materials,including 1-node oblique insertion,1-node oblique insertion+rooting powder,1-node transverse burial,2-node oblique insertion,2-node oblique insertion+rooting powder and 2-node transverse burial.The following indices were observed and determined for P.purpureum cuttings:emergence rate,rooting rate,root number,longest root length,fresh root weight,plant height,number of tillers,number of leaves,and fresh stem and leaf weight.[Results]In the 2-node cutting+rooting powder treatment,Guiminyin and Guimu-1 exhibited the highest survival rate,root growth indices,and stem and leaf growth indices,with the emergence rates of 94.29%and 90.26%,respectively.The 2-node cutting treatment followed closely behind,while the 1-node cutting treatment had the lowest indices.Under the same treatment,Guimuyin exhibited higher mean values for plant height,number of leaves,fresh stem and leaf weight,longest root length,and fresh root weight compared to Guimu-1.However,it had lower mean number of tillers,and emergence rate and rooting rate of the 1-node cutting treatment compared to Guimu-1.[Conclusions]The P.purpureum cuttings thrived in the 2-node cutting+rooting powder treatment,and the overall cutting effect of Guiminyin was superior to that of Guimu-1.
