Banca de DEFESA: BRENO MENEZES DOS SANTOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : BRENO MENEZES DOS SANTOS
DATE: 16/06/2023
TIME: 14:00
LOCAL: Plataforma Google Meet (https://meet.google.com/tza-nwmw-gfh)
TITLE:

The male effect have the same efficiency in primiparous goats and ewes in postpartum anestrus?

KEY WORDS:

Reproduction, Biostimulation; Goats, Sheep, P4, lactation.

PAGES: 101
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Reprodução Animal
SUMMARY:

The objective was to compare the efficiency of the male effect to evaluate the reproductive activity of primiparous goats (n = 49) and ewes (n = 49) in postpartum anestrus. The selected females were isolated from the males for 30 days and during this period they were evaluated for anestrus condition based on P4 concentration (< 1 ηg/ml). After contact with males, 36 goats and 38 ewes showed estrus, with a higher (P < 0.05) repetition being recorded in goats (n = 29) than in ewes (n = 9). The highest number of estrus in goats occurred between the 6th and 10th day and in ewes between the 16th and 20th day. The preovulatory peak of LH occurred between 20 and 44 hours in goats and from 24 to 88 hours in ewes. There was no difference (P > 0.05) in either follicular diameter or number of ovulations. Pregnancy in goats, pregnancy was higher (P < 0.05) in the second estrus, while in ewes it was higher (P < 0.05) in the first estrus. Total pregnancy did not differ (P > 0.05) between species, however prolificity was higher (P < 0.05) in ewes than in goats. The results allow us to conclude that the use of the male effect in primiparous females in the condition of postpartum anestrus is more efficient in ewes than in goats.

COMMITTEE MEMBERS:
Presidente - ***.302.674-** - MARCOS ANTONIO LEMOS DE OLIVEIRA - UFRPE
Externa à Instituição - FABIANA APARECIDA CAVALCANTE SILVA - UFPE
Externo à Instituição - FELIPE AUGUSTO BOUDOUX MARTINS SALES
Externo à Instituição - JOSÉ CARLOS FERREIRA DA SILVA - UFRPE
Externa à Instituição - MAIANA SILVA CHAVES