Changes in adipose cells of Longissimus dorsi muscle in Iberian pigs raised under extensive conditions
An. acad. bras. ciênc
; 90(1): 247-253, Mar. 2018. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-886903
Biblioteca responsável:
BR1.1
ABSTRACT
ABSTRACT Twenty-four Iberian castrated male pigs were used to characterize and evaluate the effect of the duration of "Montanera" in the adipocytes size and its relation with the backfat thickness and intramuscular fat. The animals were fed under extensive conditions during 30, 60 and 90 days in the "Dehesa" before slaughtered. Carcass weight, percentage of intramuscular fat, thickness of backfat and its three layers and adipocytes size of the intramuscular fat were obtained. The group which expended 90 days on fattening obtained the highest adipocytes, with an area higher by a 50% than those that only expended 30 days. The differences in diameter and perimeter adipocyte were not as marked as area. A significant positive correlation between the diameter, area and perimeter of adipocyte with the backfat thickness were found. The fat cells in Iberian pig hypertrophy during the "montanera stage", being this increase significant from month to month in this period of fattening. Also, this adipocyte increase is correlated with the animal weight. The correlation between adipocyte size and inner layer of backfat shows that the inner layer obtained in live pig by ultrasound techniques could be a good marker of fat infiltration in pigs fattening in "montanera" system.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Composição Corporal
/
Tecido Adiposo
/
Adipócitos
/
Músculos Paraespinais
Limite:
Animais
Idioma:
Inglês
Revista:
An. acad. bras. ciênc
Assunto da revista:
Ciência
Ano de publicação:
2018
Tipo de documento:
Artigo
País de afiliação:
Espanha
Instituição/País de afiliação:
Centro de Investigaciones Científicas y Tecnológicas de Extremadura/ES