The use of porcine digestible peptides and their continuity effect in nursery pigs
Author
dc.contributor.author
Figueroa Hamed, Jaime
Author
dc.contributor.author
Sola Oriol, D.
Author
dc.contributor.author
Guzmán Pino, Sergio
Author
dc.contributor.author
Chetrit, C.
Author
dc.contributor.author
Borda, E.
Author
dc.contributor.author
Pérez, J. F.
Admission date
dc.date.accessioned
2016-10-24T20:12:28Z
Available date
dc.date.available
2016-10-24T20:12:28Z
Publication date
dc.date.issued
2016
Cita de ítem
dc.identifier.citation
J. Anim. Sci. 2016.94:1531–1540
es_ES
Identifier
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10.2527/jas2015-0019
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/140950
Abstract
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A total of 552 entire male and female nursery pigs were selected to be used in 2 different experiments that aimed to study if milk ingredients can be replaced by highly preferred protein sources (Exp. 1) and if pre- and postnatal exposure of those protein ingredients through the maternal diet may increase pig performance (Exp. 2). In Exp. 1, 240 pigs were separated after weaning (28 d) into 2 groups depending on the presence of lactose in their diets. Pigs (n = 120) fed diets with the precence of lactose (lactose +) were given prestarter (0-14 d) and starter (15-33 d) diets with 142 and 50 g/kg of sweet milk whey, respectively; the lactose-free group (n = 120) was offered an isoenergetic diet with 20 g/kg of porcine-digestible peptides (PDP; Palbio 62SP; Bioiberica S.A., Palafolls, Spain) and wheat replacing sweet milk whey. Choice and 1-feeder tests were performed in another group of animals (n = 72) to evaluate the preference and acceptance for both diets. Pigs preferred (P = 0.039) the lactose+ over the lactose-free diet after a 30-min choice test and consumed more (P = 0.001) lactose+ than lactose-free diet in a 1-feeder test. However, no difference (P > 0.467) in performance was observed between groups for the entire nursery period. In Exp. 2, 120 animals were obtained from sows that, during late gestation (14 d) and lactation (28 d), were fed diets containing 20 g/kg of PDP and another 120 animals were obtained from sows fed an isoenergetic diet without PDP inclusion. Placenta samples were collected at farrowing to assess the volatile compounds present in the placental fluid of sows. After weaning, all pigs received a feed containing 20 g/kg of PDP in the prestarter and starter diets. A principal components analysis of the total volatile compounds showed the exclusive presence of sulfur-containing compounds and a higher presence of terpene compounds in the placental fluid of PDP-supplemented sows. In addition, pigs coming from sows fed diets supplemented with PDP tended to show a higher ADFI (P = 0.07) and ADG (P = 0.06) than did pigs coming from control sows during the 15 to 33 d after-weaning period. These results suggest that dietary incorporation of sweet milk whey may be replaced by a specific protein source without affecting performance of pigs after weaning. However, more experiments are needed to elucidate the mechanism for the sow's diets' influence over pig's performance.
es_ES
Patrocinador
dc.description.sponsorship
Spanish Government (MCI)
PET2008_0002
Chilean research fellowships "Becas Chile" (Santiago, Chile)
Nutrition and Care Division of Bioiberica (Palafolls, Spain)