Effects of Manure/Rice Husk Ratio in Beddings on Lying Behavior, Digestive Performance and Milk Performance of Dairy Cows

SHAN Chunhua, GUO Jianjun, ZHAO Juanjuan, WANG Chao, ZHAO Shoupei, WANG Yanan, GAO Yuhong

doi:10.3969/j.issn.1006-267x.2019.04.022

2019 , Vol. 31 >Issue 4: 1645 - 1654

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.04.022

Molecular Nutrition

Effects of Manure/Rice Husk Ratio in Beddings on Lying Behavior, Digestive Performance and Milk Performance of Dairy Cows

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1. College of Animal Science and Technology, Hebei Agricultural University, Baoding 071001, China;
2. Agriculture and Forestry Academy of Chengde, Chengde 067000, China

Received date: 2018-09-09

Online published: 2019-04-16

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Abstract

This experiment was conducted to investigate the effects of manure/rice husk ratio in beddings on lying behavior, digestive performance and milk performance of dairy cows under stall-feeding condition. Two hundred healthy dairy cows with similar body weight, lactation days and milk yield were selected and randomly allocated to 4 groups with each group had 50 dairy cows. The 4 groups were total manure group (TM group, total manure), 6 manure:4 rice husk group (6M:4RH group, the manure/rice husk ratio was 6:4), 4 manure:6 rice husk group (4M:6RH group, manure/rice husk ratio was 4:6) and total rice husk group (TRH group, total rice husk). The trial period was 42 days, and all dairy cows fed the same total mixed ration (TMR). The results showed as follows:1) the lying ratio and the counts of bacteria in beddings and milk somatic cell count in TRH group were higher than those in other three groups, and the count in beddings reached significant level compared with TM group, and the milk somatic cell count on the 42nd day reached significant level compared with TM and 6M:4RH groups (P<0.05). 2) Compared with other 3 groups, the milk yield on the 42nd day of 6M:4RH group was significantly increased (P<0.05). 3) There were no significant differences in the apparent digestibility of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid neutral detergent (ADF), calcium (Ca), phosphorus (P), and milk protein percentage, milk fat among percentage among all groups (P>0.05). It is suggested that the 6 manure:4 rice husk is the best choose for dairy farms base on the indexes being synthesized.

Key words： dairy cows; bedding; lying behavior; digestive performance; milk performance

Cite this article

SHAN Chunhua, GUO Jianjun, ZHAO Juanjuan, WANG Chao, ZHAO Shoupei, WANG Yanan, GAO Yuhong . Effects of Manure/Rice Husk Ratio in Beddings on Lying Behavior, Digestive Performance and Milk Performance of Dairy Cows[J]. Chinese Journal of Animal Nutrition, 2019 , 31(4) : 1645 -1654 . DOI: 10.3969/j.issn.1006-267x.2019.04.022

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