RESISTANCE OF THE RABBIT ORGANISM AND THE QUALITY OF RABBIT FRESH UNDER THE CONDITIONS OF SUPPLY

Abstract

The conducted research allows us to assert the positive effect of feeding rabbit feed additives during the period of laying on the body's resistance and obtaining high-quality meat and fur. It was established that already on the 5th day of introduction of feed additives "Chika" and "Ushastyk" into the diet of animals according to the research scheme increases the resistance of the organism, although not all indicators have a reliable characteristic. In the animals of the experimental groups, the content of lysozyme in the blood increased by 1.07-1.08 times, complement – unlikely, properdin by 1.20 times, IgG, mg/ml by 1.12 times. Feeding the guinea pigs with fodder until the 10th day of gestation by females fixed the increase in the activity of resistance factors. In the animals of the experimental groups, the content of lysozyme in the blood increased by 1.15-1.18 times, complement – by 1.15 times, and properdin by 1.16 times compared to the control – 1.15 times (p ≤0.05), Ig G, mg/ml in 1.39 times (p ≤0.01). LASK and BASK had a tendency to increase, but in the animals of the experimental groups they were not likely to be higher. The completeness of phagocytosis was significantly increased by 1.15 (p ≤0.05), and the phagocytosis index by 1.27 times in animals of the fourth group (p ≤0.01), by 1.09 times in animals of the third group (p ≤0, 05). The introduction of feed additives into the diet of rabbits until the end of the fruit-bearing period preserved a high level of activity of indicators of the body's natural resistance. In the animals of the experimental groups, the content of lysozyme in the blood increased in comparison with the control by 1.25-1.19 times (p ≤0.05), complement by 1.06-1.07 times, properdin by 1.23-1, 25 times for the second and third groups (p ≤0.05), Ig G, mg/ml in 1.69 times in the third group (р ≤0.01). Providing animals with feed additives in the following made it possible to obtain high-quality products from rabbits. We found that the content of total moisture in the meat of animals of the control group was 73.999± 2.066%, which was 1.243% more than in the meat of animals of the second group. In the meat of animals of the third and fourth groups, the moisture content was significantly lower, which was accompanied by an increase in the content of dry matter in the meat. The content of dry matter in meat from animals of the control group was 1.396, 1.55 and 1.56% less than in meat from animals of the second – fourth group. The highest level of fur characteristics is determined in skins obtained from animals of the 4th group. The fur on the skins obtained from experimental animals is the most formed. The arrangement of collagen fibers in bundles is thinner and denser. The number of hairs in the skin cover is on average 5800 thousand more pieces per cm2. Skins from animals of the 4th group are more long-haired, thick-haired, with a higher density of skin tissue.