PRE-SLAUGHTER LIVE WEIGHT AND ITS RELATIONSHIP WITH THE CHEMICAL COMPOSITION OF THE LONGEST BACK MUSCLE IN YOUNG PIGS OF THE LARGE WHITE BREED OF FOREIGN SELECTION
DOI:
https://doi.org/10.37000/abbsl.2026.120.26Keywords:
young pigs, pre-slaughter live weight, breed, selection, chemical composition of the longest muscle of the back, variability, correlationAbstract
The paper presents the results of studies of the chemical composition of the longest back muscle (m. longisimusdorsi) in young pigs of the Large White breed with pre-slaughter live weight; based on the data obtained, the variability of quantitative traits and the level of their correlations were determined. The study was conducted at Agroprime Holding, Odessa region, the testing center of the Institute of Animal Husbandry of the NAAS, as well as the laboratory of pig breeding and selection of the Institute of Pig Breeding and APV of the NAAS (2024-2025).
It was established that in samples of the longest back muscle (m. longisimusdorsi) of young pigs of the French Large White breed, the total moisture content is 74.45%, the dry matter content is 26.54%, the crude fat content is 2.30%, %, the protein content is 22.36%, the ash content is 1.88%, the active acidity indicator is 5.14 units, and the moisture-holding capacity (WHC) is 57.35%. A significant difference between the animals of the experimental groups (I experimental group - pre-slaughter live weight is 102.3±0.98 kg; II - pre-slaughter live weight is 120.7±1.40 kg) was established in terms of total moisture content (1.81%; td=4.64; P<0.001) and moisture-holding capacity (WHC) (3.59%; td=6.64; P<0.001). The coefficient of variation (Cv,%) of the chemical composition of the longest back muscle (m. longisimusdorsi) in young pigs of the experimental groups ranges from 0.70 (II experimental group, total moisture content, %) to 39.39% (II experimental group, crude fat content, %). The number of reliable correlations between the indicators of the chemical composition of the longest muscle of the back (m. longisimusdorsi) in young pigs of the large white breed of French selection is 28.57%. Reliable correlations were established between the pre-slaughter live weight of young pigs, protein content (r= –0.599; tr=2.37) and the moisture-holding capacity (WHC) of the longest muscle of the back (m. longisimusdorsi) (r=+0.907; tr=6.85).
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