饲喂平衡日粮提高奶牛生产率:综述

Neeraj Singh, Ramji Gupta, Ashish Awasthi, Veerendra Kumar
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摘要

在印度和类似的亚热带地区,奶畜主要食用当地种植的农作物、饲料和油籽产生的各种副产品。在牛奶生产的总成本中,约 65%-70% 是饲料支出。确保均衡饮食是印度奶业发展计划取得成功的关键。只有为奶牛提供与其遗传潜力相匹配的营养均衡的膳食,才能实现奶牛的最佳生产力。为了提高小规模农户所饲养牲畜的生产率,印度推出了一项平衡口粮计划。在该计划中,根据牲畜的产奶量水平对其进行分类:低产(每天 12 公斤)牲畜。该计划对牛奶产量、牛奶脂肪含量以及牛奶生产者在实施平衡膳食方案前后的日净收入进行了评估。营养评估显示,71% 的牲畜摄入了过量的粗蛋白和代谢能,65% 的牲畜钙和磷摄入量低于所需水平。采用平衡日粮后,牛奶产量提高了 2% 至 14%,牛奶脂肪含量增加了 0.2% 至 0.15%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Feeding Balanced Ration for Improving Dairy Cattle Productivity: A Review
In India and similar subtropical regions, dairy livestock primarily consume various by-products derived from locally cultivated crops, fodder, and oilseeds. Approximately 65-70 per cent of the total milk production cost is attributed to feed expenses. Ensuring a balanced diet is pivotal for the success of dairy development initiatives across India. The optimal productivity of dairy animals is achieved when they are provided with a nutritionally balanced diet that matches their genetic potential. To enhance the productivity of livestock owned by small-scale farmers, a balanced ration program was introduced. Under this program, animals are categorized based on their milk production levels: low (<8 kg/day), medium (8–12 kg/day), and high (>12 kg/day) yielders. The program assessed milk yield, milk fat content, and the net daily income of milk producers before and after implementing a balanced diet regimen. The nutritional assessment revealed that 71 per cent of the animals consumed excessive amounts of crude protein and metabolizable energy, while 65 per cent exhibited lower intake levels of calcium and phosphorus than required. Implementing a balanced ration resulted in an improvement in milk production ranging from 2 to 14 per cent, along with a 0.2 to 0.15 per cent increase in milk fat content.
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