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Effects of copper sulphate and coated copper sulphate addition on lactation performance, nutrient digestibility, ruminal fermentation and blood metabolites in dairy cows.
Wang, C; Han, L; Zhang, G W; Du, H S; Wu, Z Z; Liu, Q; Guo, G; Huo, W J; Zhang, J; Zhang, Y L; Pei, C X; Zhang, S L.
Afiliação
  • Wang C; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Han L; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Zhang GW; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Du HS; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Wu ZZ; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Liu Q; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Guo G; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Huo WJ; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Zhang J; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Zhang YL; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Pei CX; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
  • Zhang SL; Department of Animal Nutrition and Feed Science, College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi Province030801, People's Republic of China.
Br J Nutr ; 125(3): 251-259, 2021 02 14.
Article em En | MEDLINE | ID: mdl-32718368
ABSTRACT
Coated copper sulphate (CCS) could be used as a Cu supplement in cows. To investigate the influences of copper sulphate (CS) and CCS on milk performance, nutrient digestion and rumen fermentation, fifty Holstein dairy cows were arranged in a randomised block design to five groups control, CS addition (7·5 mg Cu/kg DM from CS) or CCS addition (5, 7·5 and 10 mg Cu/kg DM from CCS, respectively). When comparing Cu source at equal inclusion rates (7·5 mg/kg DM), cows receiving CCS addition had higher yields of fat-corrected milk, milk fat and protein; digestibility of DM, organic matter (OM) and neutral-detergent fibre (NDF); ruminal total volatile fatty acid (VFA) concentration; activities of carboxymethyl cellulase, cellobiase, pectinase and α-amylase; populations of Ruminococcus albus, Ruminococcus flavefaciens and Fibrobacter succinogenes; and liver Cu content than cows receiving CS addition. Increasing CCS addition, DM intake was unchanged, yields of milk, milk fat and protein; feed efficiency; digestibility of DM, OM, NDF and acid-detergent fibre; ruminal total VFA concentration; acetatepropionate ratio; activity of cellulolytic enzyme; populations of total bacteria, protozoa and dominant cellulolytic bacteria; and concentrations of Cu in serum and liver increased linearly, but ruminal propionate percentage, ammonia-N concentration, α-amylase activity and populations of Prevotella ruminicola and Ruminobacter amylophilus decreased linearly. The results indicated that supplement of CS could be substituted with CCS and addition of CCS improved milk performance and nutrient digestion in dairy cows.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Sulfato de Cobre / Suplementos Nutricionais / Ração Animal / Fenômenos Fisiológicos da Nutrição Animal Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Sulfato de Cobre / Suplementos Nutricionais / Ração Animal / Fenômenos Fisiológicos da Nutrição Animal Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article