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首页> 外文期刊>Tropical Animal Health and Production >Effect of association of fresh cassava root with corn silage in replacement for cactus cladodes on dairy cow performance
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Effect of association of fresh cassava root with corn silage in replacement for cactus cladodes on dairy cow performance

机译：新鲜木薯根与玉米青贮饲料在乳房母牛表现术后玉米青贮饲料中的影响

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The aim of this study was to investigate the replacement effect of cactus cladodes with cassava root and corn silage (CRCS) (0, 25, 50, 75, and 100%, dry matter basis) in diets of lactating dairy cows on nutrients intake and digestibility, microbial protein synthesis, nitrogen balance, and milk yield. Ten Holstein cows with an average milk yield of 16 kg/day, an initial body weight (BW) of 670 +/- 35 kg, and an average of 17 weeks in milking were assigned to an experiment using a double 5 x 5 Latin square design. The ratio of forage/concentrate was 82:18, and the ingredients used were cactus cladodes, cassava root, corn silage, soybean meal, wheat meal, urea, and mineral premix. The intake of dry matter, organic matter, and total digestible nutrients were not influenced by the replacement levels. On the other hand, the intake of crude protein and neutral detergent fiber increased while the intake of non-fiber carbohydrates decreased with addition of CRCS. The digestibility of the nutrients was not changed as the milk yield as fat-corrected milk production and milk content of fat, protein, lactose, and total solids. The microbial protein synthesis, microbial protein efficiency, nitrogen balance, and efficiency of N in milk were not changed. Therefore, we recommend the complete replacement of cactus cladodes by cassava root and corn silage in the diets of lactating cows with an average milk yield of 16 kg/day.
机译：本研究的目的是探讨仙人掌Cladodes与木薯根和玉米青贮（CRC）（0,25,50,75和100％，干物质）在营养物质摄入量的饮食中的替代效果（0,25,50,75和100％，干物质基础）消化率，微生物蛋白质合成，氮气平衡和乳屈服。十个荷斯坦奶牛的平均牛奶产率为16公斤/天，初始体重（BW）为670 +/- 35公斤，并且在使用双5 x 5拉丁方形的实验中将挤奶平均为17周设计。饲料/浓缩物的比例为82:18，使用的成分是仙人掌植物，木薯根，玉米青贮饲料，大豆膳食，小麦粉，尿素和矿物预混物。干物质，有机物和总消化营养物的摄入不受替代水平的影响。另一方面，粗蛋白和中性洗涤剂纤维的摄入量增加，而非纤维碳水化合物的摄入量随加入CRC减少。营养物质的消化率不会随着脂肪校正的牛奶生产和脂肪，蛋白质，乳糖和总固体的牛奶含量而变化。没有改变微生物蛋白合成，微生物蛋白效率，氮气平衡和N的N的效率。因此，我们建议在哺乳奶牛的饮食中完全替换Cactus Root和Corn Sialage，其牛奶产量为16公斤/天。

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