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Puberty and parturition on the antral follicle count of female Nelore beef cattle
被引:0
作者:
Pfeifer, Luiz Francisco Machado
[1
]
de Oliveira Junior, Jair Sabio
[2
]
Seneda, Marcelo Marcondes
[3
]
de Camargo, Higor Souza
[3
]
Morotti, Fabio
[3
]
Andrade, Evelyn Rabelo
[4
]
Moreira, Elizangela Mirian
[5
]
Andrade, Jessica Souza
[6
]
da Silva, George Moreira
[1
]
Porto, Marlos Oliveira
[7
]
Cavali, Jucilene
[7
]
机构:
[1] Embrapa Rondonia, Rodovia BR-364,Km 5,5,Caixa Postal 127, BR-76815800 Porto Velho, RO, Brazil
[2] Ctr Univ Unifacimed, Ave Cuiaba 3-087, BR-76963665 Cacoal, RO, Brazil
[3] Univ Estadual Londrina, Lab Biotecnol Reprod Anim, Rodovia Celso Garcia Cid,Pr 445,Km 380,Campus Univ, BR-86057970 Londrina, PR, Brazil
[4] Univ Fed Rondonia, Dept Med Vet, Ave Norte Sul 7-300, BR-76940000 Rolim De Moura, RO, Brazil
[5] Univ Estadual Maringa, Dept Zootecnia, Ave Colombo 5-790,Campus Univ, BR-87020900 Maringa, PR, Brazil
[6] Bionorte, Programa Posgrad Biodiversidade & Biotecnol, Rua Beira 7-671, BR-76812245 Porto Velho, RO, Brazil
[7] Univ Fed Rondonia, Dept Zootecnia, Rua Paz 4-376, BR-76916000 Presidente Medici, RO, Brazil
关键词:
Bos indicus;
artificial insemination;
ovulation;
pregnancy;
GREATER-THAN-OR-EQUAL-TO-3;
MM;
EMBRYO PRODUCTION;
IN-VITRO;
NUMBERS;
FERTILITY;
DIAMETER;
HORMONE;
IMPACT;
WAVES;
D O I:
10.1590/S1678-3921.pab2023.v58.03140
中图分类号:
S [农业科学];
学科分类号:
09 ;
摘要:
The objective of this work was to investigate whether puberty and parturition alter the antral follicle count (AFC) in female Nelore (Bos indicus) beef cattle. Two experiments were carried out to compare AFC between the prepubertal and pubertal periods and between the prepubertal and postpartum periods. AFC and follicle concentrations did not differ between the prepubertal and pubertal periods. However, the ovarian area increased after puberty. In addition, AFC and the ovarian area were greater in the postpartum than in the prepubertal period. Therefore, AFC is not affected by the puberty of Nelore heifers, but increases significantly when the prepubertal heifers become cows.
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页数:5
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