Milk Production Responses and Digestibility of Dairy Buffaloes (Bubalus bubalis) Partially Supplemented with Forage Rape (Brassica napus) Silage Replacing Corn Silage

被引:5
|
作者
Zhou, Di [1 ]
Abdelrahman, Mohamed [1 ,2 ]
Zhang, Xinxin [1 ]
Yang, Shuai [1 ]
Yuan, Jing [1 ]
An, Zhigao [1 ]
Niu, Kaifeng [1 ]
Gao, Yanxia [3 ]
Li, Jianguo [3 ]
Wang, Bo [4 ]
Zhou, Guangsheng [4 ]
Yang, Liguo [1 ,5 ]
Hua, Guohua [1 ,5 ]
机构
[1] Huazhong Agr Univ, Coll Anim Sci & Technol, Key Lab Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China
[2] Assiut Univ, Fac Agr, Anim Prod Dept, Asyut 71515, Egypt
[3] Hebei Agr Univ, Coll Anim Sci & Technol, Baoding 071000, Peoples R China
[4] Huazhong Agr Univ, Coll Plant Sci & Technol, Key Lab Crop Ecophysiol & Farming Syst Middle Rea, Wuhan 430070, Peoples R China
[5] Hubei Prov Buffalo Engn Ctr, Wuhan 430070, Peoples R China
来源
ANIMALS | 2021年 / 11卷 / 10期
关键词
forage rape silage; buffalo; digestibility; milk composition; rumen fermentation; ACID-INSOLUBLE ASH; GLUCOSINOLATE CONTENT; FERMENTATION; DIETS; HAY; PERFORMANCE; PROTEIN; MARKER; CATTLE; FIBER;
D O I
10.3390/ani11102931
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Simple Summary: To develop alternative silage resources, we employed buffaloes as an animal model to evaluate the possibility and effects of forage rape silage in the dairy buffalo diet. We comprehensively assessed the nutrition value of forage rape silage by the apparent total-tract digestibility, rumen fermentation characteristics, blood metabolism and milk composition of lactating buffaloes. Our current results showed that the inclusion of forage rape silage in diets improved the milk quality, such as milk protein, milk fat, and total solid percentage. Furthermore, partial supplementation of forage rape silage also promotes buffaloes' dry matter intake. These may be related to the favorable physiological and metabolic changes induced by the forage rape silage. Thus, our current data show the applicability of forage rape silage as a good feed resource for ruminants. Worldwide, silage is considered the main component in dairy animal diets; however, this portion is mainly dominated by corn silage, which raises availability challenges in some agricultural production systems. The present study evaluated a partial replacement of corn silage with forage rape silage (FRS) and its effect on feed intake, nutrient digestibility, rumen fermentation, milk production, and blood metabolites in buffalo. Thirty-six lactating buffaloes were randomly assigned to four different groups, according to supplementation of FRS (only corn silage, FRS0) or with 15% (FRS15), 25% (FRS25), and 35% (FRS35) of forage rape silage instead of corn silage. The results showed that, compared to corn silage, forage rape silage has a lower carbohydrate but a higher protein concentration. The buffalo intake of dry matter and organic matter were improved linearly with the FRS increasing in the diet. The apparent total-tract digestibility (ATTD) of dry matter, organic matter, nitrogen, neutral detergent fiber, and acid detergent fiber also increased by the FRS supplementation compared with FRS0. Conversely, FRS supplementation decreased the propionic, butyric, and valeric acid contents and increased the acetic:propionic ratio and microbial protein content. Furthermore, FRS inclusion led to a significantly higher milk urea and non-fat milk solid content, higher blood glucose, total globulins, blood urea nitrogen, and lower blood high-density lipoprotein. These results suggested that FRS has high a nutritional value and digestibility, is a good feed resource, and showed favorable effects when supplemented with dairy buffalo ration.
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页数:12
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