Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep

Estrus synchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated as follows: C - Control: The ewes were isolated from rams until the beginning of the mating period (Dec. 16, 1981). P - Prostaglandins: The ewes were treated with two dose...

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Autor principal: Barioglio, Carlos F.
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 1983
Materias:
prostaglandin F2 alpha
heat
ovine
prostaglandina F2 alfa
celo
ovinos
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/910
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-910
record_format ojs
spelling I10-R352-article-9102026-04-27T15:45:28Z Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep Uso de prostaglandina F2 alfa como método para sincronizar celo en ovinos Barioglio, Carlos F. prostaglandin F2 alpha heat ovine prostaglandina F2 alfa celo ovinos Estrus synchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated as follows: C - Control: The ewes were isolated from rams until the beginning of the mating period (Dec. 16, 1981). P - Prostaglandins: The ewes were treated with two doses of PG F2 alfa (16 mg each time): one at the beginning of mating and the other 9 days later. CH - The ewes were maintained with a ram chastity harness from the 15th day before the beginning of mating. CP - These ewes received the combined treatment of the P and CH groups. The early lambing was analyzed by a statistical model of the random design and the concentration of lambing was studied by the "t" method, which was also used to establish the prolificity of the ewes. The results showed that 100% (30 ewes) presented estrus 48–72 hs after the second injection of PG, which were fertile as it could later be demonstrated. No fertility differences, no prolificity differences, as well as no differences in birth weight, could be established among the treatments. The treatment of the CP group showed to be more effective (62%). Early pregnancy was established between the CP group and CH-CP groups, but no differences were observed among the different groups of treatments. The lambing during the first 16 days was different for the CP and CH groups (P < 0,01).  Se compararon tres métodos de sincronización del celo en 120 ovejas adultas de la raza Merino Precoz: uso de carnero con chaleco, uso de PG F2 alfa y combinación de ambos. Los animales fueron divididos en 4 grupos de 30 ovejas cada uno y tratados de la siguiente manera: C - Control: Las hembras permanecieron aisladas de los machos hasta el día del encaste (16 de diciembre de 1981). P - Prostaglandinas: Estas ovejas recibieron 2 dosis de PG F2 alfa (16 mg cada una), una el día de iniciado el encaste y la otra, 9 días antes. CH - Las ovejas permanecieron con un carnero con chaleco desde 15 días antes de iniciado el encaste. CP - Se combinaron los tratamientos CH y P, es decir, presencia del carnero con chaleco 15 días antes de iniciado el encaste y 2 dosis de PG F2 alfa. Para analizar el adelantamiento en las pariciones, se utilizó el modelo estadístico del diseño completamente al azar y, para comparar la concentración de las pariciones, el método "t" de diferencia de porcentaje. Este último sistema también fue empleado para comparar prolificidad de las ovejas. Los resultados obtenidos determinaron que el 100% de las ovejas del grupo CP presentaron celo entre las 48 y 72 horas después de la aplicación de la segunda dosis de PG, celos que presentaron una fertilidad normal. No hubo diferencias estadísticamente significativas en el adelantamiento de las ovejas.  Facultad de Ciencias Agropecuarias 1983-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/910 10.31047/1668.298x.v4.n1.910 AgriScientia; Vol. 4 (1983); 41-59 AgriScientia; Vol. 4 (1983); 41-59 1668-298X 10.31047/1668.298x.v4.n1 spa https://revistas.unc.edu.ar/index.php/agris/article/view/910/845 Derechos de autor 1983 Carlos F. Barioglio https://creativecommons.org/licenses/by-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Español
format Artículo revista
topic prostaglandin F2 alpha
heat
ovine
prostaglandina F2 alfa
celo
ovinos
spellingShingle prostaglandin F2 alpha
heat
ovine
prostaglandina F2 alfa
celo
ovinos
Barioglio, Carlos F.
Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
topic_facet prostaglandin F2 alpha
heat
ovine
prostaglandina F2 alfa
celo
ovinos
author Barioglio, Carlos F.
author_facet Barioglio, Carlos F.
author_sort Barioglio, Carlos F.
title Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
title_short Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
title_full Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
title_fullStr Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
title_full_unstemmed Use of prostaglandin F2 alpha as a method for synchronizing estrus in sheep
title_sort use of prostaglandin f2 alpha as a method for synchronizing estrus in sheep
description Estrus synchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated as follows: C - Control: The ewes were isolated from rams until the beginning of the mating period (Dec. 16, 1981). P - Prostaglandins: The ewes were treated with two doses of PG F2 alfa (16 mg each time): one at the beginning of mating and the other 9 days later. CH - The ewes were maintained with a ram chastity harness from the 15th day before the beginning of mating. CP - These ewes received the combined treatment of the P and CH groups. The early lambing was analyzed by a statistical model of the random design and the concentration of lambing was studied by the "t" method, which was also used to establish the prolificity of the ewes. The results showed that 100% (30 ewes) presented estrus 48–72 hs after the second injection of PG, which were fertile as it could later be demonstrated. No fertility differences, no prolificity differences, as well as no differences in birth weight, could be established among the treatments. The treatment of the CP group showed to be more effective (62%). Early pregnancy was established between the CP group and CH-CP groups, but no differences were observed among the different groups of treatments. The lambing during the first 16 days was different for the CP and CH groups (P < 0,01). 
publisher Facultad de Ciencias Agropecuarias
publishDate 1983
url https://revistas.unc.edu.ar/index.php/agris/article/view/910
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first_indexed 2024-09-03T22:16:08Z
last_indexed 2026-05-27T06:32:31Z
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