The effect of a high monounsaturated fat diet on body weight, backfat and loin muscle growth in high and medium-lean pig genotypes
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Fecha de publicación
2012-01-23ISSN
2171-9292
Resumen
The objective of this study was to evaluate whether the use of a diet rich in oleic acid could have an effect on daily
weight gain, backfat and loin muscle (Longissimus thoracis) depth. One hundred and ninety-two barrows and gilts,
from two genotypes were fed a grain and soy diet (CONTROL with 28% C18:1) or a similar diet enriched with oleic
acid (HO with 43% C18:1, Greedy-Grass OLIVA®). The pigs were housed in 16 pens in groups of 12 according to their
sex, diet and genotype. From 75 days of age every three weeks, the pigs were weighed and the backfat and loin muscle
depth were ultrasonically recorded (PIGLOG®). The inclusion of the dietary fat had no significant effect on the growth
variables nor on the backfat and loin muscle depth measurements taken. However, the barrows resulted in higher live
weight and backfat compared to the gilts at the end of the trial. Conversely, the gilts showed higher loin depth. Moreover,
York-sired pigs were heavier than Pietrain-sired pigs during the whole trial and showed higher backfat at the last two
measurements. Pietrain-sired pigs had higher loin muscle depth at the last measurements. The results of the present
study suggest that the addition of a dietary fat into diets aiming at modifying the meat fatty acid profile has no detrimental effects on performance variables, or on backfat and loin muscle growth and thus, no negative economic impact
for producers.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
636 - Explotación y cría de animales. Cría del ganado y de animales domésticos
663/664 - Alimentos y nutrición. Enología. Aceites. Grasas
Páginas
10
Publicado por
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
Publicado en
Spanish Journal of Agricultural Research
Citación
Mas, G., Soler, J., Llavall, M., Tibau, J., Roca, R., Coll, D., and Fàbrega, E. 2012. "The effect of a high monounsaturated fat diet on body weight, backfat and loin muscle growth in high and medium-lean pig genotypes". Spanish Journal of Agricultural Research. 10 (1): 78-87. doi:10.5424/sjar/2012101-125-11.
Número del acuerdo de la subvención
CDTI/ /IDI-2004-693/ES/ /
Program
Genètica i Millora Animal
Benestar Animal
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