Reproduction in Domestic Animals - Facultad de Ciencias Veterinarias
Reproduction in Domestic Animals - Facultad de Ciencias Veterinarias
Reproduction in Domestic Animals - Facultad de Ciencias Veterinarias
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16 t h International Congress on Animal <strong>Reproduction</strong><br />
168 Poster Abstracts<br />
P426<br />
Phenotypic correlations among andrologic markers of<br />
Nelore bulls from two to six years old, raised un<strong>de</strong>r<br />
pasture condition at M<strong>in</strong>as Gerais state, Brazil<br />
Nogueira, LAG. 1 *; Fragua, JD 2 ; Salamanca, E 2 ; Andra<strong>de</strong>, VJ. 1 ; Mart<strong>in</strong>s, JAM 1 ;<br />
Emerick, LL. 1 ; Souza, FA. 1 Vale Filho, VR. 1<br />
¹Veter<strong>in</strong>ary Medic<strong>in</strong>e School, Fe<strong>de</strong>ral University of M<strong>in</strong>as Gerais, Brazil;<br />
²University of Applied and Environmental Sciences, UDCA, Bogota, Colombia<br />
Introduction Scrotal Circumference (SC), physical and<br />
morphological semen characteristics, expressed by Breed<strong>in</strong>g<br />
Soundness Evaluation for Zebu (BSE-Z) <strong>in</strong><strong>de</strong>x, can be taken as<br />
reference for evaluation of bulls, s<strong>in</strong>ce sexual maturity phase. The aim<br />
of this study was to estimate phenotypic correlations among<br />
andrological markers of Nelore bulls from 2 to 6 years old.<br />
Material and Methods A total of 163 Nelore bulls from 2 to 6 years<br />
old were evaluated accord<strong>in</strong>g to CBRA (1998) and classified by BSE-<br />
Z accord<strong>in</strong>g to Vale Filho et al. (1988). Pearson’s and Spearman’s<br />
correlations were estimated by CORR procedure us<strong>in</strong>g SAS (2002)<br />
with 5% of significance.<br />
Results High correlations of BSE-Z, motility and total sperm <strong>de</strong>fects<br />
(TD) were, respectively, 0.65 and -0.67 (P