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首页> 外文期刊>Indian Journal of Small Ruminants >Reproductive performance and milk yield of Rohilkhand goats.
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Reproductive performance and milk yield of Rohilkhand goats.

机译：罗希尔肯德山羊的繁殖性能和产奶量。

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A study was conducted to record the reproduction parameters, average milk yield and milk composition of Rohilkhand goats maintained at the Institute farm. The body weights at first heat (BWFH), mating and kidding were 10.25+or-0.23, 14.34+or-0.42 and 20.15+or-0.43 kg, respectively. The least squares mean for BWFH in females was significantly higher (P<0.05) for those born in winter (13.00+or-0.53 kg) than in summer (10.40+or-0.33 kg) and rainy (8.47+or-0.40 kg) seasons. The overall least squares means for age at first heat (AFH), age at first mating (AFM), age at first kidding (AFK) and gestation length (GL) were 282.23+or-6.51, 362.14+or-10.04, 543.17+or-19.47 and 149.70+or-0.51 days, respectively. The AFH was significantly higher in winter-born animals than in summer and rainy season-born. Similarly, season affected the age at first mating. Peak milk yield was attained at 6.5 weeks and the average milk yield was 454.8 ml/day. The type of birth (single/twin) did not significantly (P>0.05) influence the milk yield of does at different weeks. The effect of season was significant (P<0.01) during early stage of lactation. Peak milk yield was higher in summer than winter months. Fat% was significantly (P<0.05) higher in late lactation than early and mid lactation. The SNF% was significantly (P<0.05) higher in early lactation than mid and late lactation. Similarly, protein and lactose constituents were significantly (P<0.01) higher in early lactation than mid and late lactation.
机译：进行了一项研究，以记录研究所农场饲养的罗希尔肯德山羊的繁殖参数，平均产奶量和产奶量。初次加热（BWFH），交配和开玩笑的体重分别为10.25 +或-0.23、14.34 +或-0.42和20.15 +或-0.43 kg。冬季（13.00+或-0.53 kg）出生的女性的BWFH最小二乘均值明显高于夏季（10.40+或-0.33 kg）和多雨（8.47+或-0.40 kg）的女性（P <0.05）季节。初次加热年龄（AFH），初次交配年龄（AFM），初次开玩笑年龄（AFK）和妊娠期长度（GL）的总体最小二乘均值是282.23+或-6.51、362.14+或-10.04、543.17+或分别为19.47天和149.70+或-0.51天。冬季出生的动物的AFH明显高于夏季和雨季的动物。同样，季节会影响初次交配的年龄。在6.5周达到最高产奶量，平均产奶量为454.8 ml /天。出生类型（单胎/双胎）在不同星期的产奶量没有显着影响（P> 0.05）。泌乳早期，季节的影响是显着的（P <0.01）。夏季高峰奶产量高于冬季月份。哺乳后期的脂肪百分比显着高于哺乳初期和中期（P <0.05）。哺乳初期的SNF％显着高于哺乳中期和晚期（P <0.05）。同样，泌乳早期的蛋白质和乳糖成分明显高于哺乳中期和晚期（P <0.01）。

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