Influência da Leptospirose sobre a produção e reprodução no rebanho leiteiro do Campus Nilo Peçanha IFRJ Pinheiral, Estado do Rio de Janeiro

Abstract

The aim of this study was to assoc iate the dairy herd reproductive failure in the presence of animals reagents leptospirosis. To this end we characterized the relevant variables to the animal and the management, production and reproductive performance data relating to the serological resul ts for leptospirosis. A total of 40 cows in lactation Girolanda, created in a semi extensive system of lowland, over paddocks, whose diet consists of forage, supplementation with concentrate ad libitum and mineralization in pasture, dairy cattle from the C ampus of the Technical College Pinheiral were collected three samples of blood serum of the whole flock and sent to the Biological Institute of São Paulo, to the technique of serum Microscopic agglutination with an interval of four months between collectio ns during the period from 2011 to 2012. Aiming to monitor the production and reproduction, these females were evaluated by gynecological and reproductive history, obtained through analysis of individual records, in parallel with individual milk production were computed data in Excel spreadsheets, and comparing the data with the results of serological leptospiorose.Observou to that in the first collection (June/2011) was 52.17%, the second collection in March 2012 (50.0%) and the third collection in June 201 2 (42.85%). The higher prevalence of serovar was Hardjo (20.66%), followed by Wolffi (19.00%) did not differ qunado analyzed by chi square at 5%. When all variables were associated, it was concluded that even with positive serology for serovar hardjo compa red to the production and reproduction of the herd, the group did not differ regante and negative, since this herd body condition score between 3.5 mantevesse to 4.0, which ensures good efficiency reprodtuiva herd.