RT Journal Article
T1 Differential Effects of Litter Size and Within-Litter Birthweight on Postnatal Traits of Fatty Pigs
A1 Vázquez Gómez, Marta
A1 Garcia-Contreras, Consolacion
A1 Pesantez-Pacheco, José Luis
A1 Torres-Rovira, Laura
A1 De las Heras Molina, Ana
A1 Astiz, Susana
A1 Óvilo, Cristina
A1 Isabel Redondo, Beatriz
A1 González Bulnes, Antonio
AB Fatty pigs are characterized by a thrifty genotype, adapted to harsh environments based on changes in metabolism and energy saving. Thus, we hypothesized that feto-maternal energy partitioning in large litters might have postnatal effects that might be independent of intrauterine growth restriction (IUGR) processes. Hence, the current work reported the influence of two effects on postnatal performance and carcass and meat quality of purebred Iberian pigs: (a) the effects of the number of piglets in the litter (high vs. low litter size), and (b) the effects of birthweight (low (LBW) vs. normal (NBW)) in large litters. The results confirmed that NBW piglets born in large litters had differences in developmental patterns of weight, back-fat deposition, and fatty acid (FA) composition when compared to NBW piglets from small litters. These results were different from those found in LBW piglets when compared to their NBW counterparts, which showed an initial asymmetrical growth and altered muscle FA composition at slaughtering. The assessment of FA composition indicated better metabolic status in NBW piglets from large litters than in LBW piglets. These data support the concept that the prenatal environment, even when the individual may cope with it, inescapably affects postnatal life.
PB MDPI
SN 2076-2615
YR 2020
FD 2020-05-17
LK https://hdl.handle.net/20.500.14352/7920
UL https://hdl.handle.net/20.500.14352/7920
LA eng
NO Ministerio de Economía y Competitividad (MINECO)/FEDER
DS Docta Complutense
RD 9 abr 2025