Abstract
Bosnia and Herzegovina has always had a developed sheep production, at least from the aspect of the number of sheep per capita. Today, the ratio is 1 sheep per 4 persons, because the cattle production, globally looking, is decimated by war. Thanks to the geographic location of the country, the quality of mountain pastures and environment that is still healthy, we believe that with increased investments in sheep production we could increase the number of heads, which would have positive effects on production of meat and milk of exceptional quality. The study involving the uterus of Dubska pramenka during sexual season under nomadic conditions of holding, demonstrated that, in adequate zoo hygiene conditions (holding, feeding, treatment of animal), the sheep showed increased reproductive parameters as well as parameters manifested in meat and milk production. In our studies, microstructure of uterus of Dubska pramenka during sexual season shows extremely positive characteristics for nidation of the egg cell and normal development of the embryo. Epithelium of the uterus is in a form of high-prismatic cells, which points to significant cell activity; perfusion and development of myometrium are visible. The uterine glands are extremely well developed and their histological structure indicates increased secretion and preparation of the uterus for gravidity.
Highlights
In Bosnia and Herzegovina, the share of domestic Pramenka in sheep breeding is 90%; it is bred in the extensive system, in the hill and mountain area
The study involving the uterus of Dubska pramenka during sexual season under nomadic conditions of holding, demonstrated that, in adequate zoo hygiene conditions, the sheep showed increased reproductive parameters as well as parameters manifested in meat and milk production
It is important to emphasise that our results are fully compatible with the results of Miljkovic (1986); Mitic (1984); Katica et al (2010), who highlight that sexual season in sheep, in terms of the uterine microstructure, is characterised by significant cell activity of the endometrium
Summary
In Bosnia and Herzegovina, the share of domestic Pramenka in sheep breeding is 90%; it is bred in the extensive system, in the hill and mountain area. It should be emphasised that the domestic Pramenka breed, in struggles to sustain itself, managed to keep its reproductive capacity relatively well, because under certain conditions it is possible to get 100 lambs from 100 sheep on a regular basis. Sheep production in these areas (Central Bosnia Canton) represents a significant income and in some way it contributes to the development of these areas. Potential reproductive capacities of the Pramenka sheep are significantly higher under favourable feeding and holding conditions; it is not mono-seasonal animal, which is proven by off-season responsiveness of its ovaries and possibility to induce oestrus, fertility in the off-season phase. It should be underlined that success in inducing off-season oestrus and fertility is largely dependent on resolving the feeding problem
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