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Relations between Kappa-casein Polymorphism (CASK) and Milk Performance Traits in Heifer Cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2013)
Przeprowadzone badania dotyczyły ustalenia zależności pomiędzy polimorfizmem
kappa-kazeiny a cechami użytkowości mlecznej 339 krów pierwiastek rasy polskiej holsztyńsko-
-fryzyjskiej odmiany czarno-białej. Genotypy ...
The effect of selected factors on freshening milking efficiency in primiparous polish holstein-friesian black-and-white cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017)
Sire origin as well as age and body weight of heifers at fertilization were shown to have
a statistically significant effect on freshening milking efficiency in Polish Holstein-Friesian Black-
-and-White primiparous cows. ...
The Milk Yield of Ukrainian Holstein Is Related to the Immunobiological Parameters of Blood of Calves
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018)
Decrease in productive longevity of dairy cows in conditions of industrial dairy complexes causes another problem, which is connected with the timely replenishment of the herd with calves for replacement. Therefore, the ...
Związek polimorfizmu kappa-kazeiny (cask) z wydajnością i składem mleka krów rasy polskiej holsztyńsko-fryzyjskiej odmiany czarno-białej
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2012)
The study involved 859 Polish Holstein-Fresian var. Black-and-White cows. The
kappa-casein (CASK) genotypes were determined using PCR (Polymerase Chain Reaction)
method. It was found that allele of CASKA
had occurred ...
Effect of the feed additive effective microorganisms™ (EMTM) on milk and reproductive performance of polish holstein-fresian black-and-white cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2016)
The aim of study was to evaluate the influence of using EMTM probiotics in dairy cattle
feeding on production and reproductive performance and birth weight of calves. The present
investigation was undertaken at a large ...
Effect of age at first calving and calving interval lenght on milk performance in cows
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017)
The research was conducted in the Kujawsko-Pomorskie voivodship. The study
material consisted of 103 cows of the Polish Holstein-Friesian breed black and white (phf, cb),
considering selected breeding parameters: age of ...
Assessment of breeding and milking performance of Polish Holstein-Friesian Black-and-White cows (HO) and crosses with the Norwegian Red breed (HO × NR)
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2022)
The aim of this study was to compare breeding performance traits (in heifers) and milking
performance (primiparous cows) of the Polish Holstein-Friesian Black-and-White breed (HO) with
those of the Polish Holstein-Friesian ...