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The aim of the study was to analyze the influence of cows’ maintenance system, herd size and milk production scale on raw milk chemical composition and quality. The study included 30 milk producers who delivered the raw material to the district cooperative dairy plant located in Central Poland. The purchased milk was characterized by good quality parameters qualifying it to the extra class and had...
The paper presents dairy cattle farmers’ opinions about animal welfare. Data used in the study were collected using questionnaire interviews in 109 farms in the Mazowieckie and Podlaskie Voivodeships. It covered issues such as: definition of welfare, evaluation of conditions in cowsheds and farms, using pasture and open run and the measures taken to raise level of animal welfare. It was found that...
The purpose of the study was to evaluate the performance of Scottish Highland cattle in Polish production systems. Research material consisted of the cattle’s performance records provided by the Polish Association of Beef Cattle Breeders and Producers. The data comprised the following traits: cow weight, height at withers and at sacrum, chest circumference, calf weight at calving and at 210th day,...
Celem pracy była ocena kształtowania się wybranych wskaźników biochemicznych krwi krów o różnej wydajności i utrzymywanych w odmiennych warunkach środowiskowych. Do badań wybrano 60 klinicznie zdrowych zwierząt, po 20 z każdej fermy, krów o zróżnicowanej wydajności mleka (ferma A, B, gospodarstwa indywidualne). Krowy wytypowane do badań były pomiędzy 40. a 60. dniem laktacji. W surowicy krwi oznaczono...
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