首页> 外文期刊>Journal of Dairy Science >Nutrition, Feeding, and Calves: Effects of Dietary Nitrogen Manipulation on Ammonia Volatilization From Manure from Holstein Heifers
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Nutrition, Feeding, and Calves: Effects of Dietary Nitrogen Manipulation on Ammonia Volatilization From Manure from Holstein Heifers

机译:营养,喂养和犊牛:日粮氮肥对荷斯坦小母牛粪肥中氨挥发的影响

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摘要

Decomposition of livestock manure produces gaseous ammonia. Dietary manipulation is one means to reduce N in manure and ammonia volatilization. The effects Of dietary crude protein concentration on N intake, N And urinary urea-N excretion, and ammonia volatiliza- Tion were measured. Eight Holstein heifers (body Weight = 260 to 488 kg) were fed a total mixed ration Containing either 9.6 or 11.0/100 crude protein in a cross- Over design. Oatlage and concentrate were fed at 77:23 (dry matter basis), and soybean meal was used to alter total dietary crude protein.
机译:牲畜粪便分解产生气态氨。饮食控制是减少肥料中氮和氨挥发的一种方法。测定了日粮粗蛋白浓度对氮摄入,氮和尿中尿素氮排泄以及氨挥发的影响。向八只荷斯坦小母牛(体重= 260至488千克)喂食混合饲喂的总混合日粮,其中含有9.6或11.0 / 100粗蛋白。以77:23(以干物质计)饲喂燕麦粥和浓缩饲料,并用豆粕改变总膳食粗蛋白。

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