Effects of Dietary Concentrate to Forage Ratios on Production Performance and Serum Biochemical Indicators in Post-fattening Hainan Yellow Cattle  

作　　者：Wang Feng Wei Limin Zheng Xinli Liu Hailong Sun Ruiping Chao Zhe Huang Lili Fu Liang Liu Quanwei 

机构地区：[1]Institute of Animal Science and Veterinary Medicine,Hainan Academy of Sciences,Haikou,571100 China [2]Hainan Key Lab of Tropical Animal Reproduction,Breeding and Epidemic Disease Research,Haikou 571100,China

出　　处：《Animal Husbandry and Feed Science》2020年第1期17-20,35,共5页动物与饲料科学（英文版）

基　　金：Technical Development Project of Hainan Provincial Scientific Research Institutes(KYYS-2018-05);Special Funds for Central Government Guiding the Development of Local Science and Technology(ZY2019HN01).

摘　　要：[Objective]The paper was to investigate the effects of dietary concentrate to forage ratios on production performance and serum bio-chemical indicators of post-fattening Hainan Yellow Cattle.[Method]Sixteen Hainan Yellow Cattles with the same genetic backgrounds and similar initial weight of(242.22 ±0.71 kg) were randomly divided into four treatments.Cattles were fed with diets of different concentrate to forage ratios(20:80, group Ⅰ;30:70, Group Ⅱ;40:60, group Ⅲ;50:50, group Ⅳ).The trial lasted 62 d.[Result]The daily gain in experimental group Ⅳ was significantly higher than that in experimental group Ⅱ(P<0.05), but the feed gain ratio in experimental group Ⅳ was lower than those in other ex-perimental groups(P>0.05).The feed intake in experimental group Ⅳ was also markedly higher than those in experimental groups Ⅰ and Ⅱ(P<0.05).Compared with the experimental group Ⅱ, the gross profit of experimental group Ⅳ was significantly promoted(P<0.05).The alanine aminotransferase and aspartate aminotransferase activities in experimental group Ⅱ were markedly higher than those in experimental groups Ⅰ, Ⅲ and Ⅳ.[Conclusion]When the dietary concentrate to forage ratios was 50∶50, the production performance of post-fattening Hainan Yellow Cattle was better.

关 键 词：Concentrate to FORAGE ratios HAINAN YELLOW CATTLE Growth performance Economic benefits SERUM biochemical indicator 

分 类 号：S823.5[农业科学—畜牧学]