Additional feeding during late gestation improves initial litter weight of lactating sows exposed to high ambient temperature

dc.creatorChoi, Yo Han
dc.creatorHosseindoust, Abdolreza
dc.creatorKim, Min Ju
dc.creatorKim, Kwang Yeol
dc.creatorLee, Jun Hyung
dc.creatorKim, Young Hwa
dc.creatorKim, Jin Soo
dc.creatorChae, Byung Jo
dc.date2023-05-04T18:49:35Z
dc.date2023-05-04T18:49:35Z
dc.date2019-10-21
dc.date.accessioned2023-09-27T21:44:11Z
dc.date.available2023-09-27T21:44:11Z
dc.identifierChoi, Y. H.; Hosseindoust, A.; Kim, M. J.; Kim, K. Y.; Lee, J. H.; Kim, Y. H.; Kim, J. S. and Chae, B. J. 2019. Additional feeding during late gestation improves initial litter weight of lactating sows exposed to high ambient temperature. Revista Brasileira de Zootecnia 48:e20180028
dc.identifier1806-9290
dc.identifierhttps://locus.ufv.br//handle/123456789/30801
dc.identifierhttps://doi.org/10.1590/rbz4820180028
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8965364
dc.descriptionThe present study investigated the impacts of additional feeding (AF; containing 16% excess feed than control diet in the last two weeks of gestation) during late gestation period and different backfat thickness (BFT) including low (<20 mm) and high (≥20 mm) backfat on reproductive performance, litter size, blood metabolites, hormonal profiles, colostrum, and milk composition of sows from day 90 of gestation to farrowing, and from farrowing to weaning during summer (average 28.3 °C). Fiftyfour crossbred sows (Yorkshire × Landrace) were allotted to one of four treatments according to a 2×2 factorial arrangement. There was no AF×BFT interaction for any of the measured variables. The body weight change of sows was decreased for <20 mm in BFT and AF treatments during late gestation and farrowing to weaning periods. The BFT change of sows was higher in AF during late gestation and higher in ≥20 mm BFT during late gestation and farrowing to weaning periods. There were no effects of AF and BFT on the average daily feed intake and weaning-to-oestrus interval; however, sows in AF groups had a greater litter uniformity at birth and initial litter weight. Hormone profiles, colostrum, and milk composition of sows were not different among the treatments. Additional feeding during the last two weeks of gestation increases initial litter size in summer; however, final litter weight is not affected
dc.formatapplication/pdf
dc.languageeng
dc.publisherBrazilian Journal of Animal Science
dc.relationR. Bras. Zootec., 48:e20180028, 2019
dc.rightsCreative Commons Attribution License
dc.subjectbackfat thickness
dc.subjectgestating sows
dc.subjectreproductive traits
dc.subjectheat stress
dc.titleAdditional feeding during late gestation improves initial litter weight of lactating sows exposed to high ambient temperature
dc.typeArtigo


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