Ndlela Sithembile Z, Mdletshe Zwelethu M, Zindove Titus J, Chimonyo Michael
Animal and Poultry Science, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, P Bag X01 Scottsville 3209, Pietermaritzburg, South Africa.
Current address: Department of Agricultural Economics and Animal Production, Faculty of Science and Agriculture, University of Limpopo, P Bag X1106, Sovenga, 0727, South Africa.
Trop Anim Health Prod. 2022 Jun 9;54(4):208. doi: 10.1007/s11250-022-03171-1.
The objective of the study was to assess the effects of water deprivation on the burden of gastrointestinal nematodes in Nguni does.
A survey was piloted on goat keepers in households where water was scarce (n = 143) and where it was available throughout the year (n = 142). In a controlled experiment, feed intake (ADFI), body condition score (BCS), FAMACHA score, packed cell volume (PCV) and faecal egg counts (FEC) were determined in does deprived of water for 24 and 48 h.
There was a significant association between the frequency with which goats drink water and the distance from the water source. From the experiment, an increase in the water deprivation period decreased ADFI, BCS and PCV, and increased FAMACHA scores and faecal egg counts in Nguni goats. The BCS of goats deprived of water for 48 h was 12% lower than the control (p < 0.05).
Reduction in water supply increased gastrointestinal burdens in does, which may compromise their productivity and production efficiency. Depriving goats of water for 24 h had no significant effect on gastrointestinal nematode (GIN) loads. The deprivation period of 48 h increased the GIN burden in does.
本研究的目的是评估缺水对恩古尼母羊胃肠道线虫负担的影响。
对缺水家庭（n = 143）和全年供水家庭（n = 142）的山羊饲养者进行了一项调查。在一项对照实验中，测定了缺水24小时和48小时的母羊的采食量（ADFI）、体况评分（BCS）、FAMACHA评分、红细胞压积（PCV）和粪便虫卵计数（FEC）。
山羊饮水频率与水源距离之间存在显著关联。在实验中，缺水时间的增加会降低恩古尼山羊的ADFI、BCS和PCV，并增加FAMACHA评分和粪便虫卵计数。缺水48小时的山羊的BCS比对照组低12%（p < 0.05）。
供水减少会增加母羊的胃肠道负担，这可能会损害它们的生产力和生产效率。使山羊缺水24小时对胃肠道线虫（GIN）负荷没有显著影响。48小时的缺水期增加了母羊的GIN负担。
