Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen

The Iberian pig is an autochthonous breed from the Iberian Peninsula highly valued for its meat. The sows are often bred as Iberian × Duroc crossings for increased efficiency. Since sow parity and season affect the reproductive performance, we evaluated two-year records from a commercial farrow-to-f...

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Autores principales:	Javier Piñán, Beatriz Alegre, Roy N. Kirkwood, Cristina Soriano-Úbeda, Magdalena Maj, Juan Carlos Domínguez, Rodrigo Manjarín, Felipe Martínez-Pastor
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Iberian gilt sow Duroc boar artificial insemination fertility Veterinary medicine SF600-1100 Zoology QL1-991
Acceso en línea:	https://doaj.org/article/94f9d4e9e4a242dc890a5ab038d2d951
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id	oai:doaj.org-article:94f9d4e9e4a242dc890a5ab038d2d951
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spelling	oai:doaj.org-article:94f9d4e9e4a242dc890a5ab038d2d9512021-11-25T16:20:19ZEffect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen10.3390/ani111132752076-2615https://doaj.org/article/94f9d4e9e4a242dc890a5ab038d2d9512021-11-01T00:00:00Zhttps://www.mdpi.com/2076-2615/11/11/3275https://doaj.org/toc/2076-2615The Iberian pig is an autochthonous breed from the Iberian Peninsula highly valued for its meat. The sows are often bred as Iberian × Duroc crossings for increased efficiency. Since sow parity and season affect the reproductive performance, we evaluated two-year records from a commercial farrow-to-finish farm (live, stillborn, and mummified piglets after artificial insemination, AI). A total of 1293 Iberian sows were inseminated with semen from 57 boars (3024 AI). The effects of parity (gilts, 1, 2–4, 5–10, and >10 farrowings) and season were analyzed by linear mixed-effects models (LME). The data were fitted to cosinor models to investigate seasonal effects within parity groups. The effects of maximum daily temperature (MDT) and day length change (DLC) during spermatogenesis, pre-AI, and post-AI periods were analyzed with LME. The 2–4 group was the optimal one for parity. A seasonal effect was evident between spring–summer (lower fertility/prolificacy) and autumn–winter (higher). Cosinor showed that the seasonal drop in reproductive performance occurs earlier in Iberian sows than in other breeds, more evident in gilts. MDT negatively affected performance in all periods and DLC in spermatogenesis and pre-AI. These results are relevant for the improvement of Iberian sows’ intensive farming.Javier PiñánBeatriz AlegreRoy N. KirkwoodCristina Soriano-ÚbedaMagdalena MajJuan Carlos DomínguezRodrigo ManjarínFelipe Martínez-PastorMDPI AGarticleIberiangiltsowDuroc boarartificial inseminationfertilityVeterinary medicineSF600-1100ZoologyQL1-991ENAnimals, Vol 11, Iss 3275, p 3275 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Iberian gilt sow Duroc boar artificial insemination fertility Veterinary medicine SF600-1100 Zoology QL1-991
spellingShingle	Iberian gilt sow Duroc boar artificial insemination fertility Veterinary medicine SF600-1100 Zoology QL1-991 Javier Piñán Beatriz Alegre Roy N. Kirkwood Cristina Soriano-Úbeda Magdalena Maj Juan Carlos Domínguez Rodrigo Manjarín Felipe Martínez-Pastor Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
description	The Iberian pig is an autochthonous breed from the Iberian Peninsula highly valued for its meat. The sows are often bred as Iberian × Duroc crossings for increased efficiency. Since sow parity and season affect the reproductive performance, we evaluated two-year records from a commercial farrow-to-finish farm (live, stillborn, and mummified piglets after artificial insemination, AI). A total of 1293 Iberian sows were inseminated with semen from 57 boars (3024 AI). The effects of parity (gilts, 1, 2–4, 5–10, and >10 farrowings) and season were analyzed by linear mixed-effects models (LME). The data were fitted to cosinor models to investigate seasonal effects within parity groups. The effects of maximum daily temperature (MDT) and day length change (DLC) during spermatogenesis, pre-AI, and post-AI periods were analyzed with LME. The 2–4 group was the optimal one for parity. A seasonal effect was evident between spring–summer (lower fertility/prolificacy) and autumn–winter (higher). Cosinor showed that the seasonal drop in reproductive performance occurs earlier in Iberian sows than in other breeds, more evident in gilts. MDT negatively affected performance in all periods and DLC in spermatogenesis and pre-AI. These results are relevant for the improvement of Iberian sows’ intensive farming.
format	article
author	Javier Piñán Beatriz Alegre Roy N. Kirkwood Cristina Soriano-Úbeda Magdalena Maj Juan Carlos Domínguez Rodrigo Manjarín Felipe Martínez-Pastor
author_facet	Javier Piñán Beatriz Alegre Roy N. Kirkwood Cristina Soriano-Úbeda Magdalena Maj Juan Carlos Domínguez Rodrigo Manjarín Felipe Martínez-Pastor
author_sort	Javier Piñán
title	Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
title_short	Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
title_full	Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
title_fullStr	Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
title_full_unstemmed	Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen
title_sort	effect of season and parity on reproduction performance of iberian sows bred with duroc semen
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/94f9d4e9e4a242dc890a5ab038d2d951
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Effect of Season and Parity on Reproduction Performance of Iberian Sows Bred with Duroc Semen

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