Sow and litter performance after cross-fostering one surplus piglet and co-mingling the litters at early lactation

Autor: G.P. Zanin, L. Santos, D.M.S. Tomm, D.F. Silveira, F.P. Bortolozzo, R.R. Ulguim, A.P.G. Mellagi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Animal, Vol 18, Iss 10, Pp 101247- (2024)
Druh dokumentu: article
ISSN: 1751-7311
DOI: 10.1016/j.animal.2024.101247
Popis: The number of piglets born alive is frequently greater than the functional teats, and some farms are equalizing litters with surplus piglets, limiting piglet udder access. Removing the barrier among farrowing crates may allow piglets to socialize and seek other sows. Thus, we evaluated the effects litter size at cross-fostering and socialization on the sow and piglet performance during lactation. Two factors were included in a 2 × 2 factorial design: socialization and litter size relative to sow functional teat number at cross-fostering. Litters (n = 189) were then assigned to one of four groups: CONT+0 (litters not co-mingled with no additional piglet), CONT+1 (not co-mingled with one additional piglet), Co-M+0 (co-mingled with no additional piglet), Co-M+1 (co-mingled with one additional piglet). Piglets were cross-fostered from 12–16 h after birth, and 24 h later, Co-M groups were socialized by removing the barrier between two adjacent pens. During lactation, sows lost more caliper units in the + 1 group than in the + 0 group (P = 0.04). The number of functional teats did not differ among groups, but Co-M sows had a higher udder lesion score at weaning than CONT (6.55 vs 4.83; P
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