Wydanie 336(43)3 2017

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https://oa.zut.edu.pl/handle/20.500.12539/702

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Przeglądaj Wydanie 336(43)3 2017 wg Temat "boar"

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  • Miniatura
    PozycjaOpen Access
    Game meat management in selected areas of the siedlce hunting district
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Bombik, Elżbieta; Bombik, Antoni; Łagowska, Katarzyna; Maliszewski, Gabriel; Bednarczyk, Małgorzata; Department of Reproduction and Animal Hygiene, Siedlce University of Natural Sciences and Humanities; Department of Agronomy, Siedlce University of Natural Sciences and Humanities; Department of Reproduction and Animal Hygiene, Siedlce University of Natural Sciences and Humanities; Department of Reproduction and Animal Hygiene, Siedlce University of Natural Sciences and Humanities; Department of Reproduction and Animal Hygiene, Siedlce University of Natural Sciences and Humanities
    Around 25% of acquired game animal carcasses are given to the hunters for their own personal use, the remainder is stored in game meat depots. The purpose of this paper is to characterize the purchased game meat, particularly: the game animal species, the amount and mass of purchased carcasses and the carcass class in selected hunting zones in the Siedlce Hunting District, including the impact of the hunting period and the season of the year. In total, the Game Meat Depot (PSD) purchased 230 boar carcasses from all the analysed hunting zones in the hunting periods included in this study, summing up to 12 438 kg of total carcass weight. The mean carcass weight of boars purchased from the studied hunting zones was between 28 and 123 kg. The study has shown a significant impact of the hunting period and season of the year on the mean boar carcass weight. 149 roebuck carcasses where purchased from the studied hunting zones, summing up to 2795 kg of total carcass weight, with the mean carcass weight between 16 and 21 kg. 138 roe deer doe carcasses where purchased during the autumn and winter of the studied hunting periods, summing up to 2454 kg of carcass weight, with the mean carcass weight between 14 and 20 kg. 27 roe deer fawn carcasses where purchased, summing up to 360 kg of carcass weight, with the mean carcass weight between 11 and 17 kg. The study did not reveal significant differences in the mean carcass weights between the hunting periods and seasons of the year for this species. Most carcasses of the researched species were ranked as first class game.
  • Miniatura
    PozycjaOpen Access
    Inter- and intra-breed variation in ejaculate characteristics and in the morphology, dimensions and shape of spermatozoa of boars used for artificial insemination
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Górski, Krzysztof; Kondracki, Stanisław; Wysokińska, Anna; Department of Bioengineering and Animal Breeding, Siedlce University of Natural Sciences and Humanities, Siedlce; Department of Bioengineering and Animal Breeding, Siedlce University of Natural Sciences and Humanities, Siedlce; Department of Bioengineering and Animal Breeding, Siedlce University of Natural Sciences and Humanities, Siedlce
    The aim of this study was to evaluate inter-bred and intra-breed variation in ejaculates and the morphology, dimensions and shape of spermatozoa of boars used for artificial insemination. The results obtained from this study suggested that there is relatively high intraand inter-breed variation in the basic characteristics of ejaculates. The ejaculates of the Landrace and Large White boars have markedly greater volume than those of the Duroc boars or the Duroc × Pietrain crossbreds, while the ejaculates of the Landrace boars contain more sperm cells than those of boars of other breeds. The spermatozoa of the crossbred boars exhibit lower motility than the sperm of other breeds. Results revealed that factors other than breed have a much greater influence on the frequency of morphological sperm defects. The morphometric dimensions of sperm cells are characterized by low intra-breed variation and relatively high inter-breed variation. The results showed that the sperm of Landrace boars had the largest head area. The spermatozoa of the Large White boars had the shortest heads and their tails were significantly shorter than those of the sperm of other breeds.