Data/hora: 20/05/2024 04:55:28

Provedor de dados: 	65	
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