Pregnancy rate of Nelore females inseminated with male-sexed semen.
Anim Reprod Sci
; 129(3-4): 127-31, 2011 Dec.
Article
em En
| MEDLINE
| ID: mdl-22154476
ABSTRACT
Pregnancy rates of Nelore females inseminated with male-sexed semen and conventional semen from the same bulls were evaluated. The females included 433 heifers (2 years old) and 230 non-suckling cows, totaling 663 animals. Average body condition score was 3.5 (1-5 scale). Estrus was induced with prostaglandin F2α. The total pregnancy rate of females inseminated with male-sexed semen of bulls A, B and C was 38.8% (131/338) less (P<0.0001) than the total pregnancy rate observed for females inseminated with conventional semen from the same bulls (57.9% [188/325]). Pregnancy rates of non-suckling cows inseminated with male-sexed semen was 43.3% (49/113), which was similar (P≥0.05) to the values found for heifers inseminated with male-sexed semen from the same bulls (36.4% [82/225]). The pregnancy rate of females inseminated with male-sexed semen was less compared with females inseminated with conventional semen. In addition, there was no significant difference in the pregnancy rate of heifers versus non-suckling cows.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sêmen
/
Pré-Seleção do Sexo
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Prenhez
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Bovinos
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Inseminação Artificial
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Taxa de Gravidez
Limite:
Animals
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Pregnancy
Idioma:
En
Revista:
Anim Reprod Sci
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Brasil