Effects of Fermented Wheat Distiller's Grains on Milk Yield and Milk Quality of Lactating Cows

DAI Zhangchao; YAN Yibo; CHEN Meiqi; SHENG Huanyu; DING Xiaoling; HAO Shengping; WU Xiangmin; LI Lyumu

doi:10.3969/j.issn.1006-267x.2020.01.032

Chinese Journal of Animal Nutrition >

2020 , Vol. 32 >Issue 1: 259 - 266

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.01.032

Effects of Fermented Wheat Distiller's Grains on Milk Yield and Milk Quality of Lactating Cows

DAI Zhangchao ,
YAN Yibo ,
CHEN Meiqi ,
SHENG Huanyu ,
DING Xiaoling ,
HAO Shengping ,
WU Xiangmin ,
LI Lyumu

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1. School of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China;
2. Nanqiao Cow Farm, Chuzhou 239063, China

Received date: 2019-07-12

Online published: 2020-01-19

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Abstract

The present study was conducted to investigate the effects of fermented wheat distiller's grains on milk yield and milk quality of lactating cows. A total of 180 Holstein dairy cows with parity 1 to 3, 180 days of lactation, similar average milk yield of (33.58±7.44) kg and body weight were randomly divided into control group, trial group 1 and trial group 2. The control group was fed an original total mixed ration, each cow in trial group 1 and trial group 2 was fed a diet with 1 and 2 kg fermented wheat distiller's grains to replace the basic concentrate, respectively. The diets were calculated to be isonitrogenous and isoenergetic. The pre-test period was 4 days and the trial period was 24 days. During the trial period, the feed intakes of cows were recorded every day, the milk yields were measured every 6 days, and milk samples were collected every 8 days to determine the milk quality. The results showed that there was no significant difference in feed intake and milk yield among groups at all stages and throughout the experiment (P>0.05), but milk yield in the trial group 1 was higher at all stages and throughout the experiment. There was no significant difference in milk composition between groups on days 8 and 16 (P>0.05). On day 24, the milk urea nitrogen content in trial group 2 was significantly higher than that in control group and trial group 1 (P<0.05). The results show that it is feasible to replace 1 kg of basic concentrate with isonitrogenous and isoenergetic fermented wheat distiller's grains in dairy cow diets, which can improve milk yield and milk quality to a certain extent.

Key words： fermented wheat distiller's grains; lactating cows; milk yield; milk quality

Cite this article

DAI Zhangchao , YAN Yibo , CHEN Meiqi , SHENG Huanyu , DING Xiaoling , HAO Shengping , WU Xiangmin , LI Lyumu . Effects of Fermented Wheat Distiller's Grains on Milk Yield and Milk Quality of Lactating Cows[J]. Chinese Journal of Animal Nutrition, 2020 , 32(1) : 259 -266 . DOI: 10.3969/j.issn.1006-267x.2020.01.032

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