Välfärdsproblem hos mjölkkor i stora besättningar

The aim with the literature study is to inform about the risks that exists in large dairy farms (with focus on mastitis and hoof health) and to inform about the milk industry in Sweden. Personal comments from two study visits (Nötcenter Viken and Vadsbo Mjölk AB) are linked together with the literat...

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Detalles Bibliográficos
Autor principal: Johansson, Emma
Formato: M2
Lenguaje:sueco
Inglés
Publicado: SLU/Dept. of Animal Environment and Health (until 231231) 2009
Materias:
Descripción
Sumario:The aim with the literature study is to inform about the risks that exists in large dairy farms (with focus on mastitis and hoof health) and to inform about the milk industry in Sweden. Personal comments from two study visits (Nötcenter Viken and Vadsbo Mjölk AB) are linked together with the literature and forms into a discussion regarding sustainable agriculture versus the milk cow's welfare. The profitability for Sweden's milk farmers have decreased because of the decreased milk price and current inflation. This leads to an increase in herdsize in order to make a profit. The milk cow herds in Sweden becomes fewer year by year and the herdsize increases. The increased herdsize can cause a decrease in the time the farmer spends per animal. This can affect early disease detection and prolong the animals suffering. Swedish Board of Agriculture published (2008) statistics showing that today's milk cow is medicated primarily because of two reasons; mastitis or hoof problems. Mastitis is the reason to two thirds of all treatments that are carried out. Mastitis causes pain for the animal and economic losses for the farmer. The disease seems to increase with herdsize. Automated controls are developed in order to detect mastitis in an early stage. Different indicators in the milk reveal if the cow suffers from mastitis or not. In order to induce the number of mastitis in a herd should among other thing good hygiene be maintained. Hoof diseases cause infertility, weight reduction and contributes to big economic losses for the farmer. 2% of the dairy cows registered in the Swedish kokontrollen are annually treated because of a hoof disease. Automated controls in order to detect lameness are developed because of the difficulties of detecting lameness in a large herd. Lameness causes a change in the cow´s weight distribution over her four limbs. Measures of weight distribution are therefore used as parameters. The risk of infection is higher in a large herd than in a smaller one because of the increased number of animals introduced. A possible infection can also affect a larger number of individuals. One should distribute the cows in a large herd into more stable buildings then one with a maximum of 200-250 animals per building in order to sustain a reasonable animal health level.