Presence of single genes affecting meat quality traits was investigated in F2 individuals of a cross between Chinese Meishan and Western pig lines using phenotypic measurements on 11 traits. A Bayesian approach was used for inference about a mixed model of inheritance, postulating effects of polygenic background genes, action of a biallelic autosomal single gene and various nongenetic effects. ...

Maize shows wide differences in linoleic acid due both to total lipid content and to fatty acid profile. Therefore, diets containing the same high maize percentage (up to 55%) can differ in linoleic acid content and lead to subcutaneous fats of differing suitability for raw ham curing. Two trials were performed on heavy pigs; in the first, 60 pigs (body weight 48.7+/-5.1 kg) were fed three diet...

We compared carcass and meat quality of pigs from the same sire line and two different dam lines, one that included Chinese breeds and one that did not. Line A consisted of 1/4 Landrace, 1/2 Large White, 1/8 Chinese breeds (Meishan, Fengjing, Jiaxing), and 1/8 Large White, Duroc and Pietrain, and line B consisted of 1/2 Large White and 1/2 Pietrain. The animals (N = 144) were slaughtered at a l...

Hibernomas are extremely rare benign tumors of adipose tissue characterized by an admixture of brown fat cells with granular, multivacuolated cytoplasm and white fat cells. Hibernomas account for 1.6% of benign adipose tissue tumors and approximately 1.1% of all adipocytic tumors. Around 10% of these cases are intramuscular. It was initially described in the early 1900s as being composed of bro...

Eighty-one crossbred steers were used to evaluate four commercially available ultrasound systems that predict intramuscular fat. The software systems represented included Animal Ultrasound Services, Inc., Ithaca, NY; CPEC, Oakley, KS; Critical Vision, Inc., Atlanta, GA (CVIS); and Classic Ultrasound Equipment, Tequesta, FL. Systems were evaluated using marbling scores and percentage ether extra...

congenital disorder characterized by cutaneous hemangiomas, hypertrophy of bone and soft tissue, varicose veins, and clinically significant arteriovenous malformation (AVM) (1, 2, 3). AVMs associated with KTWS are located in the extremities, visceral organs, or spinal canal (1, 3). Most AVMs in the extremities are intramuscular or cutaneous. There is a paucity of data on AVMs in the suprapatell...

Plasma insulin-like growth factor-1 (IGF-I) concentration taken post weaning from 1240 Bos Taurus beef cattle were used to estimate the heritability of the trait and to investigate its genetic relationship with various growth and carcase traits. IGF-I had a heritability estimate of 32% and was positively genetically correlated with various measures of carcase fatness, both on the live animal (s...

This study was carried out on the farm specializing in organic pig production on 80 fatteners of the Polish native Pulawska breed, allocated into 4 groups (20 pigs each): EM--entire (uncastrated) males, IM--immunocastrates--males vaccinated with Improvac, CM--surgically castrated males and G--gilts. The highest average daily gains were achieved by the IM group, slightly lower by EM, whereas the...

For the consumer, tenderness, juiciness and flavour are often described as the most important factors for meat eating quality, all of which have a close association with intramuscular fat (IMF). X-ray computed tomography (CT) can measure fat, muscle and bone volumes and weights, in vivo in sheep and CT predictions of carcass composition have been used in UK sheep breeding programmes over the la...

Abstract Palatability of meat is known to be affected by intramuscular fat (IMF), but the effect in relatively low-fat New Zealand lamb unknown. This study evaluated eating quality 108 loins (M. longissimus lumborum) from a single flock ewe-lambs. Loins ranged 1.09–5.68% IMF and were stratified into 6 groups: 1.65, 2.12, 2.65, 3.20, 3.58 4.40%. Consumers' (n = 165) overall liking increased sign...