Effect of addition of coconut water (Cocos nucifera) to the freezing media on post-thaw viability of boar sperm |
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| Authors: | María Bottini-Luzardo Fernando Centurión-Castro Militza Alfaro-Gamboa Ricardo Aké-López José Herrera-Camacho |
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| Institution: | 1. Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, km 15.5 Carretera Mérida-Xmatkuil, CP 97100, Mérida, Yucatán, México
2. Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo, Posta Zootécnica, km 9.5 Carretera Morelia-Zinapécuaro, Col. El Trébol, CP 58880, Morelia, Michoacán, México
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| Abstract: | The prevalence of Leptospirosis in goat herds of the State of Minas Gerais has seldom been studied. The present research had
as its objectives: (1) investigate the seroprevalence of Leptospirosis in the county of Uberlandia, MG, (2) verify the Leptospirosis
serovars, and (3) identify the risk factors associated with infection on the farms examined. Serum samples from 230 animals
in 11 properties were tested using the microscopic agglutination test. An epidemiological examination furnished data for analysis
regarding the risk factors. The prevalence of Leptospirosis was found to be 31.3% with variation from 1:100 to 1:800. The
most frequent serovars were: Autumnalis (30.30%), Tarassovi (19.20%), Pyrogenes (13.13%), and Icterohaemorrhagiae (11.11%).
The ages and races of the animals were among the risk factors found to be significantly correlated (P < 0.05) with infection. At the farm level, the intensity of production, use of salaried workers, and association of other
animals were all found to be related with the frequency of Leptospirosis. The results demonstrated that inadequate management
was a factor which favored the occurrence of infection in the region of the study. |
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