Use of prostaglandin F2 alpha as a method to synchronize heat in ovines

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Estrus sinchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated in the following: 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 tw...

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Autor principal: Barioglio, Carlos F.
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias. 2017
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:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10-article-910
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
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 to synchronize heat in ovines
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 to synchronize heat in ovines
title_short Use of prostaglandin F2 alpha as a method to synchronize heat in ovines
title_full Use of prostaglandin F2 alpha as a method to synchronize heat in ovines
title_fullStr Use of prostaglandin F2 alpha as a method to synchronize heat in ovines
title_full_unstemmed Use of prostaglandin F2 alpha as a method to synchronize heat in ovines
title_sort use of prostaglandin f2 alpha as a method to synchronize heat in ovines
description Estrus sinchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated in the following: 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 does of PG F2 alfa (16 mg each time) : One at the beginning of the mating and the other 9 clays latter. CH- The ewes wer e maintained with a ram chastityd harness from the 15th day before the beginning of the mating. CP - These ewes received the combined treatment of the P and CH groups. The early lambing was analized by statistical model of the ramdom desigfn and the concentration of lambing was studied by the "t" method, which was also used to stablish the prolificity of the ewes. The results showed that 100% (30 ewes) presented estrus 48-72 hs. after the second injection of PC which were fertile as it could later be demostrated. No fertility differences, no prolificity differences as well no differences of the weight at birth could be established among The treatment of the CP groups showed to be more efective (62 %) get early pregnancy was stablished between the C P groups and CH-CP groups. But no differences were observed among th e different groups of treatments. The lambing during the first 16th days was different for the CP and CH groups (P < 0,01). The treatment of the CP groups showed to be more efectiva (62%0)' get early estrus sinchronization and concentrated lambing than the other treatments. The results showed that the uses of PG is effective to sinchronize estrus in ewes wen they are in the normal sexual cicling activity. Besides, the uses of tha ram with chastity harness showed to be useful to start and to regularize the sexual cycle of the ewes. On the contrary, the administration of PG without the previous stimulus of the ram with chastity harness was not effective on the estrus sinchronization, neither on the early pregnancy and lambing concentration during the first 16th days of the lambing season, at the beginning of the mating season.
publisher Facultad de Ciencias Agropecuarias.
publishDate 2017
url https://revistas.unc.edu.ar/index.php/agris/article/view/910
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first_indexed 2022-08-20T01:00:29Z
last_indexed 2022-08-20T01:00:29Z
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spelling I10-R10-article-9102019-09-02T14:52:30Z Use of prostaglandin F2 alpha as a method to synchronize heat in ovines 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 sinchronization was studied by three methods on 120 adult ewes Merino Precoz Frances. Four groups of 30 ewes were treated in the following: 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 does of PG F2 alfa (16 mg each time) : One at the beginning of the mating and the other 9 clays latter. CH- The ewes wer e maintained with a ram chastityd harness from the 15th day before the beginning of the mating. CP - These ewes received the combined treatment of the P and CH groups. The early lambing was analized by statistical model of the ramdom desigfn and the concentration of lambing was studied by the "t" method, which was also used to stablish the prolificity of the ewes. The results showed that 100% (30 ewes) presented estrus 48-72 hs. after the second injection of PC which were fertile as it could later be demostrated. No fertility differences, no prolificity differences as well no differences of the weight at birth could be established among The treatment of the CP groups showed to be more efective (62 %) get early pregnancy was stablished between the C P groups and CH-CP groups. But no differences were observed among th e different groups of treatments. The lambing during the first 16th days was different for the CP and CH groups (P < 0,01). The treatment of the CP groups showed to be more efectiva (62%0)' get early estrus sinchronization and concentrated lambing than the other treatments. The results showed that the uses of PG is effective to sinchronize estrus in ewes wen they are in the normal sexual cicling activity. Besides, the uses of tha ram with chastity harness showed to be useful to start and to regularize the sexual cycle of the ewes. On the contrary, the administration of PG without the previous stimulus of the ram with chastity harness was not effective on the estrus sinchronization, neither on the early pregnancy and lambing concentration during the first 16th days of the lambing season, at the beginning of the mating season. Se compararon tres métodos de sincronización del celo en 120 ovejas adultas de la raza Merino Precoz: Uso de carner con chaleco, uso de PG F2 alfa y combinación le 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 encarte. (16 de diciembre de 1981). P - Prostaglandinas: Estas ovejas recibieron 2 dosis de PG F2 alfa (16 mgk cada una) una el día de iniciado el encaste y la otra, 9 días antes. CI I- 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 PC, celos que presentaron una fertilidad normal. No hubo diferencias estadísticamente significativas en el adelantamiento de las ovejas. Tampoco se observaron diferencias en la prolificidad de las ovejas ni en el peso promedio de los corderos al nacimiento. No hubo diferencias estilísticamente significativas en el adelantamiento de las pariciones, considerando el período total, entre los tratamientos C y P, como así tampoco entre CH y CP, pero sí los hubo (P < 0,01) entre los tratamientos C' y P con respecto a CH y CP. Cuando estos dos último, tratamientos fueron comparados entre sí, en el primer período de parición de 16 días, las ovejas del tratamiento CP adelantaron significativamente las pariciones en relación al grupo CH (P<0,01). El uso del carnero con chaleco y la administración de 2 dosis de PG (tratamiento CP) tuvo efecto significativo (P < 0,05) en la sincronización del celo y en el adelantamiento y concentración de las pariciones, con respecto a los tratamientos C, P y CH (62% en CP; 27% en CHí 7% en P y 17% , en( C). Se concluyó que la PG a las dosis e intervalos utilizados, sincronizan el celo y las pariciones en las ovejas, siempre que éstas se encuentren ciclando y que dichos celos presentan fertilidad normal. Además, el uso de carnero con chaleco 15 días antes de iniciado el encaste normaliza e] ciclo en las ovejas. La administración de PG en las dosis y épocas utilizadas, sin estimulación previa del carnero con chaleco, no tiene efecto sobre la sincronización de los celos, ni el adelanto y concentración de las pariciones. Sin embargo, la administración de 2 dosis de PC, con 9 días de intervalo entre dosis, combinada con el uso del carnero con chaleco, tiene efecto significativo sobre la sincronización de los celos y sobre el adelanto y concentración de las pariciones, en relación a los otros tratamientos estudiados. Facultad de Ciencias Agropecuarias. 2017-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/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

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