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The research was carried out on a population of Polwarth sheep, intensely inbred belonging to the Research and Development Institute for Sheep and Goats Breeding, Palas - Constanta. Morpho-productive indices, reproduction indices, current number compared to the one acquired in 1995, inbreeding depression, intergenerational depression, inbreeding population, body weight differentiation and quantity of wool in the year of acquisition compared to 2020 were determined. From the presented data it results that the reproduction of the sheep was not affected instead in rams the body weight and the amount of wool decreased. Surprisingly, instead of shrinking and disappearing over time, the herd has increased and continues to grow, contrary to what is known to date from the effect of intense inbreeding on a breed of sheep. [ABSTRACT FROM AUTHOR]

The researches were made on intensively fattened kids up to the weight of 40-42 kg from two genetic types: F1 Boer x Carpathian hybrids and Carpathian breed. The hybrids had the bigger dressing percentage with 5,42 percent points comparatively to the Carpathian breed. The carcasses of hybrids (3 from each genotype) had more meat and less bones comparative to the mother breed, the differences being significant. The meat/bones report was 3,8/1 at hybrids beside 3,2/1 at the Carpathian breed. The areas of the leg and Longissimus dorsi muscle sections at hybrids were bigger with 26,1%, respectively 19,1%, comparatively to the Carpathian breed. Also the muscle rate index of the leg had higher values at hybrids than the mother breed, all the differences between genotypes being statistically significant. [ABSTRACT FROM AUTHOR]