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ORIGINAL ARTICLE: Effect of brewer's grain on rumen fermentation, milk production and milk composition in lactating dairy cows

Six lactating Holstein cows were divided into two groups (n = 3) and used in a double reversal trial with three periods of 14 days each to evaluate the rumen fermentation, milk production and milk composition of cows fed brewer's grain (BG). The control diets contained 14% chopped Sudangrass ha...

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Published in:Animal science journal 2007-10, Vol.78 (5), p.519
Main Authors: MIYAZAWA, Kenji, SULTANA, Halima, HIRATA, Teppei, KANDA, Shuhei, ITABASHI, Hisao
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SULTANA, Halima
HIRATA, Teppei
KANDA, Shuhei
ITABASHI, Hisao
description Six lactating Holstein cows were divided into two groups (n = 3) and used in a double reversal trial with three periods of 14 days each to evaluate the rumen fermentation, milk production and milk composition of cows fed brewer's grain (BG). The control diets contained 14% chopped Sudangrass hay, 24% corn silage, 18% alfalfa hay cube, 34% concentrate mixture-1 and 10% concentrate mixture-2 (wheat bran, soybean meal and cottonseed). In the experimental diet, wet BG replaced the concentrate mixture-2. The protozoal population, concentration of ammonia-N and volatile fatty acids in the ruminal fluid did not differ between the control and BG diets. The molar percentage of acetic acid was significantly higher (P < 0.05) with the BG diet at 5 h after feeding. The milk yield, the percentage of protein, lactose, solids not-fat and somatic cell counts of milk did not differ between the two diets. The percentage of milk fat tended to increase with the BG diet. The BG diet significantly increased the proportions of C18:0 and C18:1 in milk fat (P < 0.01, P < 0.05, respectively) and tended to increase that of conjugated linoleic acid. [PUBLICATION ABSTRACT]
doi_str_mv 10.1111/j.1740-0929.2007.00471.x
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subjects Agriculture
Cattle
Feeds
Grain
Milk
Oils & fats
title ORIGINAL ARTICLE: Effect of brewer's grain on rumen fermentation, milk production and milk composition in lactating dairy cows
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