亚热带母羊两年内繁殖三次的冲洗处理。

I F Marai, A M Aboul-Naga, F Z Swedan, A S El-Snobsksny, A A Abdel Malek, N R Saad
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引用次数: 0

摘要

对389只奥西米母羊进行为期45天的不同蛋白质水平(100%、125%和150%)和不同蛋白质来源(植物蛋白、鱼粉和尿素)冲洗处理,时间为两年,每次在交配季节前三周,其间进行三次繁殖。在高蛋白质水平和施用植物蛋白的情况下,在冲洗期间获得了较高的活重增长。繁殖性能不受影响。受孕率随蛋白质处理的增加而提高。植物蛋白处理在受孕率、双胞胎和小羊羔方面有较好的效果。事实证明,9月比1月和5月更适合交配。母羊年龄和活重对母羊日增重和繁殖性能无显著影响。只有孪生率随活重的增加而显著增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Flushing treatments of subtropical ewes bred three times each within two years.

389 Ossimi ewes were given 45 days of flushing treatment with different protein levels (100%, 125%, and 150%) and different sources of protein (plant protein, fish meal, and urea) during a period of two years three weeks each before a mating season and with three breedings during that time. At high protein levels and application of plant protein higher live weight increases were achieved during the flushing period. The reproduction performance was not influenced. The conception rate improved with increasing protein treatments. Plant protein treatments gave better results in the conception rate, twinnings and lambings. September proved a better month for mating than did January and May. There was no significant influence of the age and the live weight of the ewes on the daily body weight gain and the reproductive performance of the ewes. Only the rate of twinning increased significantly with increasing live weight.

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