Effect of racial crossing on the scrotum-testicular biometry in sheep submitted to scrotal insulation

Autor: Antônio F.S. Lisboa-Neto, Paulo G. Mariano-Filho, Jean R. Carvalho, Morgana S. Araújo, Amilton C. Santos, Felicianna C.F. Machado, Manoel L. Silva-Filho, Antônio A.N. Machado-Júnior
Jazyk: English<br />Portuguese
Předmět:
Zdroj: Pesquisa Veterinária Brasileira, Vol 37, Iss 3, Pp 291-294
Druh dokumentu: article
ISSN: 1678-5150
0100-736x
DOI: 10.1590/s0100-736x2017000300014
Popis: ABSTRACT: The objective of this study was to evaluate the effect of the racial crossing on scrotum-testicular biometric characteristics of four sheep Santa Ines and four crossbred (Santa Ines x Dorper) submitted to scrotal insulation, following the return of these characteristics to values previously reported. For this, two measurements were made regarding the scrotal circumference (SC), length (L) and testicular width (W) before treatments. The testicular volume (V) was calculated by the formula V=2 [(r2) x π x H]. The pouches were made with double-layer plastic, internally lined with cotton, and fixed around the spermatic funiculus and scrotum with adhesive tape and bandage remaining in this position for seven days. Measurements were made every seven days, totaling 15 measurements throughout the experiment. The data were submitted to analysis of variance (ANOVA) to a randomized block design with two blocks, 15 treatments and four replications. The variables analyzed were subjected to Dunnett test at 5% probability, to compare the values obtained before and after insulation. For comparison between the breeds, the variables were submitted to Tukey test at 5% probability. All animals studied suffered significant influence (P
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