This review describes sheep genetic resources in Bulgaria with coloured wool and evaluates the country’s potential for coloured wool production. In 2018, Bulgaria counted 125,422 animals belonging to 18 native sheep breeds, six of which are in danger of extinction. Native sheep breeds in Bulgaria can be divided into three groups depending on the fleece colour of the animals: i) sheep breeds with fully pigmented fleece in all animals; ii) sheep breeds with animals with fully pigmented fleece or fully white fleece; iii) sheep breeds with spotted coloured fleece. Colouration in populations of the native Bulgarian sheep breeds can be explained by the phenotypic expression of several alleles of coat colour genes: ExtensionD, Agoutia and Pigmented headT , while white colour is due to the presence of the dominant Agoutiwt allele.Based on the relative share of the animals with coloured wool, the country’s potential for annual coloured wool production from native breeds was estimated at a minimum of 133,791 kg of unwashed wool. Recent tendencies in lifestyle changes of the Bulgarian people are gradually leading to increased interest in naturally coloured wool products, which may benefit the conservation of endangered native breeds by promoting relevant breeding programmes.
Introducing a system for recording of the productive effect of energy and protein by their transformation into lamb/kids/small ruminant’s meat. METHODS: The results were obtained in experiment with a 6 male Kalofer longhaired goat kids, slaughtered immediately at weaning at 90 days of age, without a period of intense fattening after weaning (so-called “milky kids”). The kids were rearing in traditional conditions in the real production system. RESULTS: Clarc of energy distribution - CPT (net energy fodder – gross energy meat) - 0.5871 (58.71%) and Clarc of protein transformation – CPT (protein digestible in the intestine fodder – crude protein meat) - 0.1958 (19.58%) have been calculated. CONCLUSIONS: The Clarc of energy distribution and Clarc of protein transformation are indexes for objective calculation of the energy and nutrient transformation between the preliminary and secondary parts of the eco-technical chain “fodder-edible parts of lambs/kids meat”.
Abstract. The aim of this study was to investigate the loss of accuracy of AC-method for milk yield control in sheep under
The Bulgarian Screw-horned longhaired goat is a local breed, distributed in the mountainous regions of Bulgaria. The largest compact herds with preserved breed type of the animals are differentiated into two main habitats. I. The region of Southwestern Bulgaria - mainly in the southern and western border mountains of the Blagoevgrad region (the slopes of Southern Pirin, Slavyanka, Ograzhden, Malashevska mountains). II. The region of Western Stara Planina (settlements along the northern slopes) - mainly the Vratsa and Teteven regions. Exactly from these two areas (Teteven region and settlements in the border regions of Blagoevgrad region) in the 1968 year Professor Altman selects animals for conservation work with this breed in the GDR (1). Initial monitoring of the population shows some variation in the exterior signs of specimens in the two native distribution areas. This requires a detailed study and comparative analysis of the exterior in specimens from the respective areas. For the purposes of the study, complete measurements and descriptions of the exterior were performed in 50 goats and 20 bucks, respectively, from each areal. The Bulgarian Screw-horned longhaired goat from the area of Northwestern Stara Planina was larger and more massive than the animals from the area of Southwestern Bulgaria. The heigh at withers for the goats from the Vratsa region was 74.42 cm and 66.06 cm in goats from the Sandanski region. This sign in the bucks also shows a difference of almost 10 cm - 83.75 and 72.45, respectively for male animals from the two regions. The differences were proven with a high degree of probability. The goats from the area of Northwestern Stara Planina has a longer and broader head, the ears were proven to be longer, than in the animals from Southwestern Bulgaria. The horns of both male and female specimens from the Vratsa region were extremely rough and massive. The differences were proven with a high degree of probability.
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