Coping with large litters : the management of neonatal piglets and sow reproduction

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Peltoniemi , O , Yun , J , Björkman , S & Han , T 2021 , ' Coping with large litters : the management of neonatal piglets and sow reproduction ' , Journal of Animal Science and Technology , vol. 63 , no. 1 , pp. 1-15 . https://doi.org/10.5187/jast.2021.e3

Title: Coping with large litters : the management of neonatal piglets and sow reproduction
Author: Peltoniemi, Olli; Yun, Jinhyeon; Björkman, Stefan; Han, Taehee
Contributor: University of Helsinki, Helsinki One Health (HOH)
University of Helsinki, Chonnam National University
University of Helsinki, Departments of Faculty of Veterinary Medicine
University of Helsinki, Production Animal Medicine
Date: 2021
Language: eng
Number of pages: 15
Belongs to series: Journal of Animal Science and Technology
ISSN: 2672-0191
URI: http://hdl.handle.net/10138/326931
Abstract: As a result of intensive breeding, litter size has considerably increased in pig production over the last three decades. This has resulted in an increase in farrowing complications. Prolonged farrowing will shorten the window for suckling colostrum and reduce the chances for high-quality colostrum intake. Studies also agree that increasing litter sizes concomitantly resulted in decreased piglet birth weight and increased within-litter birth weight variations. Birth weight, however, is one of the critical factors affecting the prognosis of colostrum intake, and piglet growth, welfare, and survival. Litters of uneven birth weight distribution will suffer and lead to increased piglet mortality before weaning. The proper management is key to handle the situation. Feeding strategies before farrowing, management routines during parturition (e.g., drying and moving piglets to the udder and cross-fostering) and feeding an energy source to piglets after birth may be beneficial management tools with large litters. Insulin-like growth factor 1 (IGF-1)-driven recovery from energy losses during lactation appears critical for supporting follicle development, the viability of oocytes and embryos, and, eventually, litter uniformity. This paper explores certain management routines for neonatal piglets that can lead to the optimization of their colostrum intake and thereby their survival in large litters. In addition, this paper reviews the evidence concerning nutritional factors, particularly lactation feeding that may reduce the loss of sow body reserves, affecting the growth of the next oocyte generation. In conclusion, decreasing birth weight and compromised immunity are subjects warranting investigation in the search for novel management tools. Furthermore, to increase litter uniformity, more focus should be placed on nutritional factors that affect IGF-1-driven follicle development before ovulation.
Subject: BIRTH-WEIGHT
COLOSTRUM INTAKE
FEED-INTAKE
FOLLICLE DEVELOPMENT
HIGH-FIBER DIET
LACTATION WEIGHT-LOSS
MULTIPAROUS SOWS
NEWBORN PIGLETS
NUTRITIONALLY INDUCED RELATIONSHIPS
TO-OVULATION INTERVAL
413 Veterinary science
412 Animal science, dairy science
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