Reduction of liver function delays resumption of postpartum ovarian activity and alters the synthesis of acute phase proteins in dairy cows.
Res Vet Sci
; 106: 84-8, 2016 Jun.
Article
em En
| MEDLINE
| ID: mdl-27234541
ABSTRACT
The aim of this study was to evaluate the concentration of acute phase proteins, milk production, and resumption of postpartum ovarian activity of clinically healthy dairy cows in a semi-extensive system with different Liver Functionality Index (LFI) values. The animals were divided into two groups Low LFI (LLFI -7 to -12; n 10) and High LFI (HLFI -7 to -4; n 10). Animals with LLFI had lower paraoxonase activity and lower albumin concentration in the pre- and postpartum periods (P<0.05), higher non-esterified fatty acids prepartum (P<0.005), and higher haptoglobin concentration postpartum (P<0.01). The LLFI group showed lower resumption of ovarian activity until 44days postpartum (29%; P<0.05) than HLFI (86%). Milk production did not differ between groups. Therefore, this study suggests that the LFI is an important biomarker of synthesis of acute phase proteins and the first ovulation interval, and it can be used to improve the production and reproductive performance.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ovulação
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Lactação
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Proteínas de Fase Aguda
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Bovinos
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Período Pós-Parto
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Fígado
Limite:
Animals
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article