Czasopismo
Tytuł artykułu
Warianty tytułu
Języki publikacji
Abstrakty
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 and the magnitude of heat flux from its surface were dependent mainly on air temperature, air velocity and cooling. External udder temperature was the lowest at air temperature ranging from 16.4 to 17.4°C. At the same time heat flux from the udder surface was the highest. Above the temperature range there occurred an increase of skin temperature and the value of heat flux decreased. The highest temperature of the udder was observed at 6-7 months after delivery, although that increase could have been the outcome of seasonal air temperature growth during that period. No marked influence of lactation period on the biothermic indices of the udder was found.
Wydawca
Czasopismo
Rocznik
Tom
Numer
Strony
496-500
Opis fizyczny
s.496-500,rys.,fot.,tab.,bibliogr.
Twórcy
autor
- Akademia Rolnicza, ul. Dicksteina 3, 51-617 Wroclaw
autor
autor
autor
autor
Bibliografia
- 1. Bezzubčev V. S., Lizunov A. F., Uzbekov V. V, Šereskov V. J.: Sovremennyje destiz. fizjol. i biohim. lakt. 91, 32, 1981.
- 2. Bitman J., Lefcourt A., Wood D. L„ Stroud В. : J. Dairy Sci. 67, 5, 1014, 1984.
- 3. Brown R. W., Thomas J. L, Cooc H. M„ Riley Y. L., Booth Q. D.: Am. J. Vet. Res. 38, 181, 1987.
- 4. Caurolo E. V., Jarman R. F., Dickey D. A.: J. Vet. Med. A, 37, 61, 1990.
- 5. Diagnostyka laboratoryjna mastitis. Opr. zbiorowe pod red. J. Wiśniowskiego. Instytut Wet. Puławy, 1978.
- 6. Dobicki A.: Konf. nauk.-techn. „Problemy chowu i reprodukcji bydła w fermach wielkostadnych”. Wrocław, 27, 1977.
- 7. Eichel H.: Mh. Vet.-Med. 36, 554, 1981.
- 8. Eichel H„ Eichentopf F.: Arch. exp. Vet. Med. 42, 378, 1988.
- 9. Gottwald J.: Medycyna Wet. 22, 153, 1962.
- 10. Grzegorzak A.: Konf. nauk.-techn. „Problemy chowu i reprodukcji bydła w fermach wielkostadnych”. Wrocław, 18, 1977.
- 11. Hurnik J. F., De Boer S„ Webster A. B.: Can. J. Anim. Sci. 64, 1073, 1984.
- 12. Hurnik J. F., Webster A. B„ De Boer S.: J. Anim. Sci. 61, 1095, 1985.
- 13. Jarman R. F., Caurolo E. V.: Ztbl. Vet. Med. 31, 740, 1984.
- 14. Jarman R. F., Caurolo E. V., Vreeland C. E.: J. Dairy Sci. Supi. 1, 71, 196, 1988.
- 15. Lefcourd A. M., Bitman J., Wood D. L., Stroud B.: J. Dairy Sci. 69, 273, 1986.
- 16. Rojkowski A., Jodkowska E., Chudoba-Drozdowska B., Janeczek W., Szulc T.: Zootechnika, Wrocław, 33, 151, 1990.
- 17. Samborski Z: Medycyna Wet. 41, 149, 1985.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-article-b6d337d8-f2f1-484f-90d9-77779fd6813f