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The studies were carried out on 20 dairy cows assigned to two groups depending on their blood serum content of ketonic compounds. The cows of group I, which had subclinical ketosis, were administered Col press supplement to feed ration, whereas the cows of group II were the control group. Col press was applied from seven days before expected parturition through four weeks postpartum. In the blood...
Celem pracy były badania dotyczące wielkości strat ciepła zachodzących z organizmów owiec w zależności od warunków meteorologicznych środowiska oraz przewodnictwa cieplnego ich runa. Wykonano je u 5 dorosłych owiec w 3 fazach - przed strzyżą, bezpośrednio po strzyży oraz po kolejnych 4 miesiącach i częściowym odroście runa. Badano temperaturę rektalną (tr), temperaturę skóry w 7 punktach termostabilnych...
Badania dotyczyły porównania poziomów wybranych parametrów krwi, a mianowicie: ciał ketonowych, glukozy, potasu, ß-karotenów oraz RKZ u krów i ich potomstwa. Badania wykonano u krów będących w 8-9 miesiącu ciąży oraz u cieląt w 3 dniu po urodzeniu. Stwierdzono statystycznie istotną korelację poziomów badanych parametrów biochemicznych w surowicy krwi cieląt oraz pH krwi i zasobu zasad (BE) z poziomami...
Badania wykonano na 42 krowach rasy cb utrzymywanych w uwięziowej oborze ściołowej. Badania obejmowały pomiary temperatury wewnętrznej zwierząt (tr) oraz wybranych parametrów dotyczących termiki gruczołu mlekowego: temperatury skóry wymienia (ts), przepływu strumienia ciepła z jego powierzchni (Q) oraz temperatury w zatokach mlecznych (tz). Pomiary wykonywano oddzielnie dla każdego płata wymienia...
The purpose of the study was to determine the degree of interrelationship between the udder surface temperature, heat flux and microclimatic conditions in the cow-shed, and different periods of lactation. A considerable diffe- rentation of udder temperature was found depending on the place of measurement. The highest temperature was found in the milk antrum and the lowest at teats. Udder skin temperature...
Study was conducted on 43 Lowland-Black-White cows kept tethered and on straw bedding, where the annual average milk yield was on the level of 3890 kg/cow, and on 22 cows from free-stand, concrete floor barn, with the milk production of 3200 kg/cow. On the ground of preliminary assignments of ketone body and acid base balance, cows were allotted to one of three groups: Ith - group of healthy animals,...
Investigations were conducted on two groups of dairy cows, housed into the structures differed considering the systems of feeding and maintenance /structure I was free-stand, concrete barn; structure II - tethered, litter bedding barn including pasture during summer/. Cows selected for an experimental trials, /3 and h months of pregnancy/, were clinically examined and the blood was taken for hematology...
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