Estudos das características andrológicas de touros da raça Guzerá, criados na Estação Experimental da EMEPA em Alagoinha - PB, no período de 2002 a 2008.

Abstract

The present study had for objectives to evaluate the reproductive characteristics, as well as to do the classification andrological for points (CAP) of 110 bulls of the race Guzerá with age varying from 19 to 60 months created in the Experimental Station of EMEPA in Alagoinha - PB, in the period from 2002 to 2008. The animals were separate in three different groups: G1 = 19 to 32 months; G2 = 33 to 46 months and G3 = 47 to 60 months. The Average ± Standard Mistake obtained for the perimeter escrotal (cm), length of the left testicle (cm) and length of the right testicle (cm) in the groups G1, G2 and G3 were, 30,57±0,47; 9,41±0,17; 9,39±0,17, 33,73±0,39; 10,55±0,18; 10,69±0,22, and 35,00±1,43; 11,11±0,45; 11,11±0,45, respectively. For the semen’ characteristics: concentration espermática (106/cm3), turbilhonamento (1-5), mobility (%), vigor (1-5), and total defects (%), of the three groups, respectively, it was observed for Average ± Standard Mistake the following values 171,288±40,068; 2,49±0,20; 59,80±2,92; 2,55±0,16; 16,12±1,32, 213,214±50,931; 2,21±0,20; 65,34±2,26; 2,54±0,15; 12,37±0,96, and 118,750±18,806; 3,00±0,41; 67,22±4,01; 3,11±0,39; 14±4,01. Of the 110 studied bulls, 92 were submitted to CAP resulting in 73 capable, 3 questionable, 9 immature and 7 inapt. It could be concluded with this study that there were variations in the values analyzed for the testicular biometric and seminal parameters under effect of the age group. CAP came efficient with relationship to the evaluation andrological of bulls of the race Guzerá, consisting of a dynamic tool for selection of reproducers.