Effects of extra feeding in mid-pregnancy for three successive parities on lean sows' productive performance and longevity
Cerisuelo, Alba
Sala Pallarés, Roser (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Gasa, Josep (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)
Carrión, Domingo
Coma Subirà, Jaume
Chapinal i Gómez, Núria
Baucells Sánchez, María Dolores (Universitat Autònoma de Barcelona. Departament de Ciència Animal i dels Aliments)

Fecha:	2010
Resumen:	The aim of this study was to investigate the long-term effects of increasing feeding allowance during mid-pregnancy in sows. A total of 103 PIC pregnant sows (mixed parity) were allocated to two treatments: control (C, n49) were fed 2. 5 3. 0 kg d 1 (12. 1 MJ ME kg 1) and extra-fed (E,n 54) received 2. 0 kg d 1 of the same feed from day 4 5to 8 5of gestation over three consecutive cycles. Body weight, backfat thickness (BF) and loin depth were measured on days 4 5and 8 5of gestation, farrowing and weaning. Litter and sows performance were recorded during lactation and post-weaning. Overall culling rates were 61 and 67% for C and E groups, respectively. After three cycles, E sows showed a positive BF balance in contrast to C sows (E 1. 46 mm and C 1. 81 mm, PB 0. 05). In cycle 3, E sows presented greater piglet birth weights than C sows, being mainly evident in sows that were nulliparous at the onset of the experiment (PB 0. 05). Extra-fed sows showed a greater incidence of mastitis-metritis-agalactia syndrome than C sows (P 0. 003). Thus, increasing feeding allowance during mid-pregnancy positively affected BF balance and birth weight in nulliparous sows,but impaired the sows' ability to produce milk in the long-term.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Porcs ; Reproducció ; Sow nutrition ; Body reserves ; Sow performance ; Nutrition des truies ; Réserves corporelles ; Performances des truies
Publicado en:	Canadian journal of animal science, Vol. 90 Núm. 4 (2010) , p. 521-528, ISSN 0008-3984

DOI: 10.4141/CJAS10040

8 p, 132.1 KB

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