Nutritive Characteristics of Dried Potato By-Product Meal for Ruminants
Nutritive Characteristics of Dried Potato By-Product Meal for Ruminants
复制标题
马铃薯干反刍动物副产品粉的营养特性
DOI：
10.3168/jds.s0022-0302(71)85934-9
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发表时间：
1971
影响因子：
3.5
通讯作者：
P. S. Young
中科院分区：
文献类型：
--
作者：
H. C. Dickey;H. A. Leonard;S. D. Musgrave;P. S. Young
摘要采用常规方法对马铃薯副产品干粉进行了分析，并与马铃薯干渣进行了奶牛反向饲养试验，测定了绵羊和奶牛的总可消化养分和消化能。该饲料的组成是可变的，但平均水分为8.6%，粗蛋白为7.4%，乙醚提取物为4.9%，粗纤维为4.6%，灰分为16.0%，无氮提取物为58.5%。灰分分析表明，氧化钙11.0%，碳酸钾1.54%，磷酸盐0.487%和少量的其他矿物质。蛋白质的消化率为零奶牛和绵羊7.3%。总可消化养分和可消化能分别为52.5 ~ 53.9%和2.0 ~ 2.3Mcal/kg。当干马铃薯副产品粉喂给高产奶牛在22%的谷物混合物含有近15%的蛋白质，奶牛吃显着更少的谷物和更多的苜蓿草干草比类似的奶牛喂相同量的干马铃薯浆。这导致干物质和蛋白质显著减少，但更多的脂肪和矿物质的摄入量，这些奶牛饲喂干马铃薯副产品粉日粮。在逆转试验期间，奶牛的产奶量或主要乳成分或体重变化无显著差异。
Abstract Dried potato by-product meal was analyzed by official procedures, compared with dried potato pulp in a reversal feeding trial for dairy cows, and total digestible nutrients and digestible energy were determined with both sheep and dairy heifers. This feed was variable in composition but averaged 8.6% moisture, 7.4% crude protein, 4.9% ether extract, 4.6% crude fiber, 16.0% ash and 58.5% nitrogen-free extract. Analyses of the ash showed 11.0% calcium oxide, 1.54% potash, .487% phosphate and lesser amounts of other minerals.Digestibility of protein was zero for dairy heifers and 7.3% for sheep. Total digestible nutrients and digestible energy were 52.5 to 53.9% and 2.0 to 2.3 Mcal/kg. When dried potato by-product meal was fed to high producing dairy cows at 22% in a grain mixture containing nearly 15% protein, the cows ate significantly less grain and more alfalfa-grass hay than similar cows fed the same amount of dried potato pulp. This resulted in significantly less dry matter and protein but more fat and mineral intake by those cows fed the dried potato by-product meal ration. There were no significant differences in milk or major milk constituents produced or body weight changes of the cows during the reversal experiment.