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Effect of a diet high in energy and protein on growth, carcase characteristics and parasite resistance in goats

机译：高能量和高蛋白饮食对山羊生长，car体特性和抗寄生虫性的影响

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摘要

The effects of a high-energy and high-protein diet on growth, parasite resistance and carcase characteristics were studied using local goats with an average initial body weight (BW) of 12.0 (SD = 0.7) kg. Thirty-two animals were allocated to a completely randomized factorial design, with four animals of each sex per treatment. The factors were: two diets (diet H with high content of crude protein (CP) and metabolizable energy (ME), and diet L with low content of CP and ME) and deworming (DW) or non-deworming (NDW). The highest dry matter (DM) intake was obtained for goats fed diet H combined with DW, but there was no significant difference between DW or NDW for goats fed diet H. The goats fed diet L and DW had significantly better total DM intake than NDW goats. The average daily gain of animals fed diet H was 86 and 92 g/day compared to 27 and 40 g/day for diet L, for NDW and DW animals, respectively. Feeding diet H resulted in higher slaughter weight and consequently also higher empty BW, carcase weight and dressing percentage and lower feed conversion ratio. Dewormed animals had significantly higher empty BW than NDW animals. There were significant effects of diet and parasite control on Faecal egg count (FEC: number of parasite eggs per gram of faeces (e.p.g.)), with NDW animals fed diet L having higher FEC than animals fed diet H.
机译：使用平均初始体重（BW）为12.0（SD = 0.7）kg的本地山羊，研究了高能量高蛋白饮食对生长，寄生虫抗性和and体特性的影响。将32只动物分配到完全随机的因子设计中，每次治疗每种性别有4只动物。这些因素是：两种饮食（粗蛋白（CP）和代谢能（ME）含量高的饮食H，CP和ME含量低的饮食L）和驱虫（DW）或非驱虫（NDW）。饲喂日粮H和DW的山羊获得最高的干物质（DM）摄入量，但饲喂日粮H的山羊的DW或NDW之间没有显着差异。饲喂日粮L和DW的山羊的总DM摄入量显着高于NDW山羊。饮食H喂养的动物的平均日增重为86和92 g /天，而饮食L为NDW和DW的动物分别为27和40 g / d。饲喂日粮H导致较高的屠宰体重，因此也导致较高的空体重，屠体重量和敷料百分比以及较低的饲料转化率。驱虫动物的空腹体重明显高于NDW动物。饮食和寄生虫控制对粪便卵数有显着影响（FEC：每克粪便的寄生虫卵数（例如）），饲喂L的NDW动物的FEC比饲喂H的动物高。

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