Lipid Profile of Pig Tissues Contrasting in Meat Production

Abstract

Background: Studies were carried out on two breeds of pigs - Pietrain (P), and Kemerovo (K), contrasting in composition of carcasses, and their hybrids. Objective: The purpose of this work was to establish the characteristics of the composition of lipids of intramuscular fat (IMF), back fat and serum, organoleptic qualities in animals of these breeds. Methods: Animals of 10 individuals in each group were fed on a standard feed and slaughtered with a live weight of 95-100 kg. The quality of carcasses, the biochemical characteristics of blood, the composition of fatty acids and cholesterol in meat and fat, and blood lipid peroxidation were determined. Results: Thickness on the back fat (BF) at the level of 6-7 thoracic vertebrae with a live weight of 100 kg was 35.8 ± 1.65 mm in pigs of breed K, in hybrids - 27.6 ± 1.06, and in breed P - 19, 6 ± 1.43 mm. IMF in pigs of breed K was almost 4.5 times greater than that of breed P. IMF K breed contained 2 times less cholesterol than in P (2.34 vs. 4.68%). In the IMF, K was 2 times less polyunsaturated fatty acids (PUFA), than P, 7.82 and 15.22%, linoleic acid, 6.74% and 12.42% respectively (p <0.005).The organoleptic properties of meat and salted back fat were significantly higher in breed K (P = 0.05). Conclusion: The data obtained allow us to establish priorities in the use of products of specific breeds of pigs, depending on medical requirements.

Gene Expression Analysis Reveals Clinically Significant Genes Associated with Familial Hypercholesterolemia and Atherosclerosis

“…Based on the findings of our investigation, it is proposed that the observed increase in the activity of specific genes (CCL3, MY-O18B, LINC00644, CYS1, CLDN8, RGPD4-AS1, LINC00958, and HLA-DRB5) and the subsequent overexpression of their corresponding receptors may potentially encompass a wide array of interconnected pathways, intricately intertwined with diverse cascades such as inflammation and innate immunity. 31 The genes investigated in this study, along with their corresponding functions, are listed in Table 2. Prior studies have established the importance of identifying genes that are expressed differently (DEGs) in a specific ailment, as it can substantially assist in the diagnostic process.…”

Comparative analysis of local pig breeds in China and Russia

“…Pigs are undemanding to feed. According to the opinion of V. A. Bekenev et al [96,97], meat and speck from pigs of the Kemerovo breed differ from that of other breeds, in particular commercial breeds, by a ratio of unsaturated to saturated fatty acids. Speck is distinguished for its high-melting properties and at the same time for good sensory characteristics.…”

Study of adipose tissue of Kemerovo piglets: Detection of beige adipocytes

“…It is expedient to use these qualities in pig breeding to select new breeds and crosses in regions with sharp climate fluctuations and seasonal feeding base. Kemerovo pigs fall into the meat-and-lard (universal) direction of productivity and according to various literature data, a backfat size (at a level of 6 th -7 th thoracic vertebrae at a live weight of 100 kg) will be from 27-29 mm [12] to 35.8 ± 1.65 mm [13]. According to the data of Bekenev V. A.…”