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Productivity of Simmental and Montbeliarde cows culled in 2005–2016 taking into account the reasons for their culling

100%
Zolkiewski P., Stanek P., Janus E.
Acta Scientiarum Polonorum. Zootechnica
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2018
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tom 17
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nr 1
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Comparison of meat performance of fattening bulls and culled cows of Montbeliarde and Polish Holstein-Friesian breeds and their influence on income value from their sale

80%
Golebiewski M., Brzozowski P.
Acta Scientiarum Polonorum. Zootechnica
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2011
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tom 10
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nr 3
The aim of the researches was to compare meat performance of fattening bulls and culled cows of Montbeliarde and Polish Holstein-Friesian breeds as well as to estimate their influence on income value. In the researches 97 bulls and 68 cows were taken under consideration. Data consisted of: breed, age, live weight, carcass weight and EUROP classification. For calculating income value of cows and fattening bulls market prices from 2010 year were used. Significant influence of the breed on live weight as well as carcass weight were reported. Cow and bulls of montbeliarde breed characterized by heavier live body weight, better dressing rate as well as much better results of EUROP classification. Therefore, average value of cow and bulls of montbeliarde breed was significantly higher if compared to Polish Holstein-Friesian.
3
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Relation between the shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows

80%
Golebiewski M., Piotrowski T., Brzozowski P., Grodzki H., Przysucha T., Slosarz J., Kunowska-Slosarz M., Nalecz-Tarwacka T., Wojcik A.
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
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2015
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tom 54[1]
Relation between the shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows. The aim of the study was to examine the relation between shape and course of lactation curve and production traits of Polish Holstein-Friesian and Montbeliarde cows kept under various production systems. The production parameters were based on cows records developed by Polish Federation of Cattle Breeders and Producers and involved 1374 lactations. For estimation of lactation curve parameters Wood’s model was applied. The influence of breed, lactation number and type of the farm on Wood’s parameters were analyzed. The relations between shape and curse of the lactation curve on daily production and milk chemical composition were investigated. Analysis revealed that standard shape of the lactation curve was the most often observed, the significantly higher frequency was observed in mo than phf cows. Cows with standard lactation curve characterized by the highest production and the best milk quality. The significant influence of breed, lactation number and farm type on Wood’s parameters were stated. Cow with less dynamic changes in milk production during lactation characterized by significantly better production parameters.
4

Comparison of dairy performance of Montbeliarde and Black-and-White cows housed in the same environmental conditions

80%
Golebiewski M., Brzozowski P.
Annals of Animal Science
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2008
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tom 08
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nr 1
3-11
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