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Natural tree shade increases milk stability of lactating dairy cows during the summer in the subtropics.
Abreu, Alexandre S; Fischer, Vivian; Stumpf, Marcelo T; McManus, Concepta M; González, Felix H D; da Silva, Jéssica B S; Heisler, Guilherme.
Afiliação
  • Abreu AS; Milk and Beef Consultant in Agribusiness, Brazil.
  • Fischer V; Animal Science Department, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
  • Stumpf MT; Agroecology Faculty, Federal University of Rio Grande, Rio Grande, Estrela, Brazil.
  • McManus CM; Physiology Science, Federal University of Brasília, Brasília, Brazil.
  • González FHD; Clinical Pathology Department, Veterinary Medicine Faculty, Federal University of Rio Grande do Sul, Brazil.
  • da Silva JBS; Milk and Beef Consultant in Agribusiness, Brazil.
  • Heisler G; Animal Science Department, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
J Dairy Res ; 87(4): 444-447, 2020 Nov.
Article em En | MEDLINE | ID: mdl-33121555
This research communication addresses the hypothesis that, during the summer in the subtropics, natural tree shade helps to improve milk functional characteristics such as stability and acidity. Sixteen Holstein lactating cows were enrolled. The study consisted of three periods (pre-stress, heat stress and post-stress) based on allocating grazing cows into two treatments (with and without access to shade during the Heat Stress period). Overall THI during the trial was (mean ± se) 76.0 ± 3.4. Access to shade prevented the heat stress-related decrease in milk stability both in the ethanol and in the coagulation time test, as well as maintained milk acidity within an acceptable range (14 to 18°D).
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Árvores / Lactação / Indústria de Laticínios / Leite / Meio Ambiente / Criação de Animais Domésticos Limite: Animals Idioma: En Revista: J Dairy Res Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Árvores / Lactação / Indústria de Laticínios / Leite / Meio Ambiente / Criação de Animais Domésticos Limite: Animals Idioma: En Revista: J Dairy Res Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido