The Case for Grazing Dairy Cows

被引:3
作者
Wilkinson, J. Michael [1 ]
Chamberlain, A. Thomas [2 ]
Rivero, M. Jordana [3 ]
机构
[1] Univ Nottingham, Sch Biosci, Loughborough LE12 5RD, Leics, England
[2] Chalcombe Ltd, Wickham PO17 5PQ, Hants, England
[3] Rothamsted Res, Okehampton EX20 2SB, Devon, England
来源
AGRONOMY-BASEL | 2021年 / 11卷 / 12期
基金
英国生物技术与生命科学研究理事会; “创新英国”项目;
关键词
milk production; soil health; carbon sequestration; animal welfare; human health; WELFARE; MILK; CATTLE;
D O I
10.3390/agronomy11122466
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The case for grazing dairy cows at pasture is reviewed in six categories: (i) optimal land use for food production; (ii) soil carbon sequestration; (iii) carbon footprint; (iv) animal health and welfare; (v) effects on human health of milk produced from grazed pasture; and (vi) consumer demand for milk from grazed cows. Land best-suited to grazing is uncultivatable peaty soil receiving relatively low levels of fertilisation. With soil carbon sequestration, carbon footprint is lower for grazing than for other systems of milk production. Some indices of animal health and welfare (e.g., lameness, status of hock integument) are influenced positively by extent of grazing. Benefits to human health may accrue from higher levels of essential amino acids, carotenoids, omega-3 fatty acids and conjugated linoleic acid in milk from cows given pasture compared to diets based on silage and concentrates. Milk producers, processors and supermarkets are responding to consumer demand for milk and milk products from cows given access to pasture during the grazing season. The major constraint to milk production from grazing is energy intake. Research opportunities to address this constraint include application of remote sensing and artificial intelligence to grazing management.
引用
收藏
页数:12
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