Dosseh Helliot Kossi, Ahozonlin Maurice Cossi, Dossa Luc Hippolyte
Ecole des Sciences et Techniques de Production Animale, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, 03 BP 2819, Cotonou, Benin.
Vet Anim Sci. 2021 Oct 3;14:100210. doi: 10.1016/j.vas.2021.100210. eCollection 2021 Dec.
The aim of this research was to compare the zootechnical performances of indigenous and Maradi goats reared under village conditions in the Sudanian zone of Benin. A questionnaire survey was carried out between August and October 2019, using the 12MO, a retrospective method for estimating demographic parameters in tropical ruminant livestock population and the progeny history method. Information related to farmers' socioeconomic characteristics, goat herd management practices and demographic parameters, and milk productivity from 198 does including 66 West African Dwarf (WADG), 68 Red Maradi (RMG) and 64 West African long-legged (WLLG) goats were collected in 80 smallholder farms. Pearson Chi-square and Kruskal-Wallis W tests were performed respectively on the categorical and continuous variables. The average herd size was about 16.7 ± 9.0; 5.8 ± 3.1 and 15.4 ± 7.4 heads respectively for WADG, RMG and WLLG. Bucks were absent in several herds where kids (47.9 ± 12.8%) and does (46.6 ± 12.8%) predominated. Prolificacy rates at first and second parturition varied significantly ( ≤ 0.05) among goat types and were respectively 165.2 ± 59.5% and 195.1 ± 66.9% for WADG; 160.3 ± 55.0% and 196.0 ± 53.9% for RMG; 134.4 ± 54.1% and 154.6 ± 51.0% for WLLG. Parturition rates were higher ( ≤ 0.05) in WADG (159.1 ± 49.5%) than in RMG (138.2 ± 49.0%) and WLLG (132.8 ± 47.3%). Likewise, productive rates were higher ( ≤ 0.05) in WADG (277.3 ± 142.3%) than in RMG and WLLG (204.4 ± 125.1% and 168.8 ± 102.2% respectively). Milking was only performed on RMG and the amount of milk collected per milking ranged between 0.6 and 1 liter per doe. Enhancing goat herds' productivity could be achieved through improved general herd management practices.
本研究的目的是比较在贝宁苏丹地区村庄条件下饲养的本地山羊和马拉迪山羊的畜牧生产性能。2019年8月至10月期间进行了问卷调查，采用12MO（一种用于估计热带反刍动物种群人口统计学参数的回顾性方法）和后代历史方法。在80个小农户养殖场收集了与农民社会经济特征、山羊群管理实践和人口统计学参数以及198只母羊的产奶量相关的信息，其中包括66只西非矮山羊（WADG）、68只红马拉迪山羊（RMG）和64只西非长腿山羊（WLLG）。分别对分类变量和连续变量进行了Pearson卡方检验和Kruskal-Wallis W检验。WADG、RMG和WLLG的平均畜群规模分别约为16.7±9.0、5.8±3.1和15.4±7.4头。在几个以羔羊（47.9±12.8%）和母羊（46.6±12.8%）为主的畜群中没有公羊。不同山羊品种在第一胎和第二胎的繁殖率差异显著（P≤0.05），WADG分别为165.2±59.5%和195.1±66.9%；RMG分别为160.3±55.0%和196.0±53.9%；WLLG分别为134.4±54.1%和154.6±51.0%。WADG的产羔率（159.1±49.5%）高于RMG（138.2±49.0%）和WLLG（132.8±47.3%）（P≤0.05）。同样，WADG的生产率（277.3±142.3%）高于RMG和WLLG（分别为204.4±125.1%和168.8±102.2%）（P≤0.05）。仅对RMG进行挤奶，每只母羊每次挤奶收集的奶量在0.6至1升之间。通过改进一般畜群管理实践可以提高山羊群的生产力。
