Data/hora: 07/06/2024 07:25:20

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | A STUDY OF ASSOCIATION BETWEEN ELISA RESPONSE TO INFECTIOUS DISEASE AGENTS AND CALVING INTERVAL IN CATTLE IN THE TROPICS OF MÉXICO
Autores: | Barajas-Rojas,José Alfonso; Riemann,Hans; Franti,Charles.
Data: | 1993-12-01
Ano: | 1993
Palavras-chave: | Infectious diseases; Antibodies; Calving intervals; México.
Resumo: | Forty eight cows of Holstein-Zebu crosses with at least one completed pregnancy were tested for antibodies to 20 disease agents. The testing was performed within one month (average two weeks) after calving when the IgG level constantly reaches its lowest value during the cows reproductive cycle. The results indicate that increasing levels of IgG against Leptospira interrogans serovar hardjo and Mycobacterium paratuberculosis may be associated with an increased calving interval. Increase in calving intervals could not be explained by age of cows or their genotypic characteristics.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781993000300015
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84781993000300015
Formato: | text/html
Fonte: | Ciência Rural  v.23 n.3 1993
Fonte: | info:eu-repo/semantics/openAccess