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Open Journal of Animal Sciences 2021年第4期11卷 543-558页

作者： Wauffo David Fokom Fernand Tendonkeng Gilles Jiope Azangue Emile Miégoué France-Gina Tobou Djoumessi nyah cédric kwayep Mama Mouchili Institute of Agricultural Research for development (IRAD) Bangangté Cameroon Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Cameroon Department of Plant Biology Faculty of Science University of Dschang Cameroon

The 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 P. clandestinum were evaluated at the Research and Experimental Farm (REF) and at the Animal Nutrition and Feeding Laboratory of 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 m2 plot of P. clandestinum 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 chemical composition of P. clandestinum, according to the level of fertilization and

关键词： Fertilization Hen Droppings Biomass chemical composition Pennisetum clandestinum

Effects of Different Levels of Garlic Powder Incorporated in the Feed Enriched with Stylosanthes guianensis on Reproduction and Pre-Weaning Growth Performances of cavies (cavia porcellus)

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Open Journal of Animal Sciences 2023年第4期13卷 574-589页

作者： Martin Vidal Tatang Emile Miégoué Margaret Mary Momo chongsi Wouafo David Fokom nyah cédric kwayep Paulette Ntsafack Tobou France-Gina Djoumessi Mathieu Duclos Fogang Fernand Tendonkeng Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon Multipurpose Research Station Institute of Agricultural Research for Development Bangangté Cameroon

In order to increase the productivity of the local cavies as a meat animal, a study was carried out between November 2021 and March 2022 at the Research and Experimental Farm, Animal Nutrition and Production Research Unit of the Faculty of Agronomy and Agricultural Sciences (FAAS) and the Microbiology and Anti-Microbial Research Unite of the University of Dschang on 72 cavies aged between 4 and 5 months and weighing an average of 450 ± 50 g produced on the farm, including 60 females and 12 males. The females were distributed according to a completely randomized factorial design in twelve (12) rearing boxes numbered G1 to G12, with 15 females per group distributed in 03 boxes and receiving iso-nitrogenated experimental diet (18% protein) R0 enriched with 20% of Stylosanthes guianensis (0% garlic powder), R0.25 (0.25% garlic powder), R0.50 (0.50% garlic powder) and R0.75 (0.75% garlic powder). Females were identified by numbered ear tags and mated with a sex ratio of 5 females for 1 male. Drinking water enriched with vitamin c (01 tablet of 240 mg in 1.5 liters of water) was served ad libitum and renewed daily. The males were removed after 31 days. A form was established to record the weight of each pregnant female, any abortions during gestation, the date of parturition and the date of birth of each newborn, as well as the number of live-born or stillborn pups. After parturition, the weights of female and newborn cavies were recorded weekly until the 3rd week. The number of cavies that died before weaning and the number of live weaned cavies were also recorded. Reproductive performance significantly increased (p 0.05) fertility rate and net fertility rate, litter size, birth viability rate, and pre-weaning viability rate with rations containing garlic powder, compared to the control ration, especially with the R0.50 ration. In addition, birth mortality and pre-weaning mortality were significantly lower (p 0.05) with rations containing the additive, compare

关键词： cavy Garlic Powder Pre-Weaning Growth Reproduction Stylosanthes guianensis

Mineral composition and Effect of Biochar on Preweaning Reproductive and Growth Performance in cavy (<i>cavia porcellus</i>)

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Open Journal of Animal Sciences 2022年第1期12卷 145-157页

作者： christèle Kenne Nouboussi Fernand Tendonkeng Nathalie Mweugang Ngouopo Emile Miégoué Dieu-Nedort Djoufack Thierry Douglas Ndongo Hamadou Ousmane J. Gwladys Nkana Kontchiachou cédric Brailly kwayep nyah Mama Mouchili Pamo T. Etienne Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon Faculty of Science University of Ngaoundere Ngaoundere Cameroon Institute of Agricultural Research for Development Cameroon

In order to contribute to the improvement of the knowledge on the valorization of biochar as a feed additive in livestock, three biochar made from cassava peelings, bean tops and cocoa pods were manufactured. After analyzing their mineral composition, they were incorporated into rations at a rate of 0.8% in order to evaluate their effects on the performance of reproduction and pre-weaning growth in cavy (Cavia porcellus). The trials were conducted in the Research Unit of Animal Production and Nutrition (URPRONAN) of the University of Dschang, on 96 adult local breed cavy (from the first generation), including 80 females and 16 males aged 4 months and with an average weight of 400 ± 0.25 g. After 2 weeks of adaptation in the rearing boxes at the farm, the females were put in reproduction for a period of 31 days, the animals were divided into 04 batches of 20 females and 4 males. The animals in the control lot were fed a compound feed without biochar (T) while the others were fed the compound feed containing 0.8% of cassava peel biochar (EM), 0.8% of bean tops biochar (FH) and 0.8% of cocoa pod husks biochar (CC) respectively. The results of this study showed that the ash content (26%) and macro-element concentration were higher in the bean husk charcoal compared to the other charcoals and the trace elements were more concentrated in the cassava peel charcoal. The best fertility rate (87.5%) was obtained in animals receiving the ration containing organic cocoa pod charcoal. The

Effect of Acacia albida Leaf Supplementation on Reproductive Parameters and Pre-Weaning Growth of Arabian Lambs

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Open Journal of Animal Sciences 2023年第1期13卷 46-59页

作者： Oumar Moucthar Kodbe Miegoue Emile Mouchili Mama Azoutane Julien Ousmane Issa Abdel Djalil kwayep nyah cedric Taboumda Evariste Tendonkeng Fernand Animal Nutrition Laboratory Animal Production Department FASA University of Dschang Dschang Cameroon Biology Laboratory of the Faculty of Exact and Applied Sciences (FSEA) Uinversity of N’Djamena N’Djamena Chad University of Sciences and Technology of Ati (USTA) Ati Chad National Higher Institute of Sciences and Techniques of Abéché (INSTA) Abéché Chad

A trial on Acacia albida leaf supplementation on reproductive parameters and pre-weaning growth of Arabian lambs was conducted from September 2020 to May 2021 at the small ruminant station of the Livestock Research Institute for Development (IRED) in N’Djamena, chad. Forty-eight (48) Arabian sheep (45 non-pregnant females and 3 males for a sex ratio of 1 ram to 15 ewes) with an average weight of 20.3 ± 1.2 kg and aged approximately 2 years were divided into 3 groups of 15 ewes each. The supplemented group received in addition to the dominant forage of the pasture (300 g of Dactyloctenium aegyptium + 300 g of cenchrus ciliaris + 600 g of Panicum maximum), 400 g and 600 g of Acacia albida leaves/animal/day while the control group received only 300 g of Dactyloctenium aegyptium + 300 g of cenchrus ciliaris + 600 g of Panicum maximum. From the results of this study, it appears that the ewes that received 400 g of Acacia albida leaves had a significantly higher fertility rate and birth mortality rate (93.03% and 6.25% respectively). Animals in the control group had a significantly higher pre-weaning mortality rate than those receiving Acacia albida leaves as a supplement (16.66% versus 6.66% and 14.28% respectively). The highest weight of the lambs was observed in the ration supplemented with 600 g of Acacia albida leaves (12209.66 g). The total weight gain, as well as the average daily weight gain of the lambs receiving the 600 g Acacia albida leaf ration was significantly higher than those of the other rations. Supplementation with 400 g and 600 g of Acacia albida leaves can be recommended as a protein supplement for breeding ewes and pre-weaned lambs.

关键词： Acacia albida Lamb Growth Weaning Supplementation

chemical composition of Pineapple Press Residues (Ananas comosus) and Effect on Growth Performance of Rabbit (Oryctolagus cuniculus)

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Open Journal of Animal Sciences 2024年第4期14卷 321-335页

作者： Bertine Marie Noël Noumbissi Emile Miegoue Nathaniel Arnaud Jordy Nguema Nathalie Ngouopou Mweugang Langston Wilfried Edie Nounamo cedric nyah kwayep Fernand Tendonkeng Department of Animal Science Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon

With a view to improving rabbit production performance, a trial on the chemical composition of pineapple press residue (Ananas comosus) and the effect of its incorporation in the ration on rabbit growth performance (Oryctolagus cuniculus) was carried out at the KUATE cunicole Farm in Bandjoun, in Western cameroon. To do this, 36 rabbits of the local breed, aged 53 days with an average weight of 1337 ± 119 g were distributed and randomly assigned to 3 experimental rations corresponding respectively to treatments or batches T0, T1 and T2. The animals in treatment T0 received a ration containing no pineapple press residue, while those in treatments T1 and T2 received a ration containing 20% and 40% pineapple press residue, respectively. These residues were dried and ground for chemical composition analysis. The feed served as well as refusals from the previous day were weighed each morning to assess feed intake. The animals were weighed every 7 days to assess weight performance. At the end of the trial which lasted 7 weeks, the animals were fasted for 24 hours, then sacrificed to evaluate carcass characteristics and the relative weights of some digestive organs. The results of this study showed that pineapple press residues had a high crude fiber content (19.2%) and energy (2500 Kcal/kg DM). Their incorporation had no significant effect on feed intake and feed conversion ratio. The average live weight, weight gain and average daily weight gain of the animals receiving the ration with 20% inclusion of pineapple press residue were comparable to those of the control group and significantly higher than those of animals fed with 40% inclusion of pineapple residue. The highest carcass yields were obtained with rabbits fed 20% pineapple press residue in their ration. The cost of feed for the production of a kilogram live weight of rabbit tends to decrease with the ration incorporated with 20% pineapple press residue. Pineapple press residues constitute a by-product that can b

关键词： chemical composition Growth Pineapple Press Residue Production cost Rabbit