Przeglądaj wg Autor "Przysucha, Tomasz"

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    PozycjaOpen Access
    Analysis and Comparison of Meat Performance Parameters in Polish and French Limousine Bulls
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2022) Wiśniewski, Konrad; Kuczyńska, Beata; Przysucha, Tomasz; Department of Animal Breeding, Warsaw University of Life Sciences, Poland. 2. Polish Association of Breeders and Producers of Beef Cattle, Warsaw, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland
    The study covered bulls of the Limousine meat breed, whose parents were of Polish and French origin, kept on farms in Poland. This study aimed to assess whether individuals of Polish origin cover their genetic potential compared to bulls of French origin. These studies were carried out under the program of the Ministry of Science and Higher Education "Implementation Doctorate" DWD3 / 53/2019 in cooperation with the Polish Association of Beef Cattle Breeders and Producers in 2019-2022. The research material consisted of 925 bulls, 447 by French father and 478 by Polish father. Among breeders of Polish origin, special attention was paid to the fact that parents of French origin did not appear in the pedigrees in the previous two generations. The following factors were taken into account in the comparative analysis: the country of origin of the bull's father, the country of origin of the bull's mother, body weight after calving (kg), body weight at 210 and 420 days of life (kg) and gains (g) in this period, standardized weight in 210 and 420 days (kg), as well as the height at withers (cm), chest circumference (cm), ultrasound measurement of the longest back muscle (cm3), muscle index, development index, collective evaluation index, calibre, muscle and bone share, functional features and state. The individual calendar months were taken into account as the calving period. Statistical analysis was performed by multivariate ANOVA using SPSS.23 software. A significant influence of the father's origin on the vital parameters of bulls was shown. After the birth of a Polish father, the mean body weight of bulls was 39.08 kg and was lower by 0.95 kg (p ≥ 0.01) than males of French origin. Bodyweight, daily gains, standardized body weight in the 210th and 420th day of life, height at the withers, chest circumference, ultrasound measurement of the longest back muscle, meatiness index, development index, and aggregate evaluation index spoke in favour of bulls of French origin. However, there were no significant differences in maternal origin, size, muscle and bone proportion, functional components, and condition.
  • Miniatura
    PozycjaOpen Access
    Analysis of results assessment of growth rates of simmental beef cattle in Poland
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Przysucha, Tomasz; Gołębiewski, Marcin; Wnęk, Karolina; Slósarz, Jan; Kunowska-Slósarz, Małgorzata; Balcerak, Marek; Department of Animal Breeding, Warsaw University of Life Sciences; Department of Animal Breeding, Warsaw University of Life Sciences; Department of Animal Breeding, Warsaw University of Life Sciences; Department of Animal Breeding, Warsaw University of Life Sciences; Department of Animal Breeding, Warsaw University of Life Sciences; Department of Animal Breeding, Warsaw University of Life Sciences
    The aim of the study was to assess the utility of selected results of Simmental breed with respect to their compliance with the goal of racial breeding and standards adopted by the Polish Association of Breeders and Producers of Beef Cattle (PABPBC). The subject of the analysis were recording results of the Simmental beef cattle breed. The study was based on data for the years 2002–2014 of PABPBC and the National Center of Animal Breeding (NCAB) for 2000–2001. Evaluated properties are: average weight of cows [kg], the average body weight of calves after birth [kg], the terms of cows and heifers calving aptitude, the distribution of the population according to the order of calving cows. The average weight of cows in 2005–2006 amounting to 568.5 and 522.5 kg meet the breeding standards for of cows entered in the initial part of the herd book. which define the minimum weight of Simmental cows after first calving as 470 kg. The average weight at birth of heifers after 2009 began be lower than 33 kg. In purebred bulls decrease in the average birth weight was noticed.The average daily gains of heifers (550–560 g), guarantee obtaining at 15 months of age body weight allowing the commencement of breeding
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    PozycjaOpen Access
    Comparison of Recording Results of Purebred and Crossbred Charolaise Cattle in Poland
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2018) Przysucha, Tomasz; Gołębiewski, Marcin; Slósarz, Jan; Kuczyńska, Beata; Puppel, Kamila; Kunowska-Slósarz, Małgorzata; Kalińska, Aleksandra; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland; Department of Animal Breeding, Warsaw University of Life Sciences, Poland
    The aim of the study was to compare purebred and crossbred Charolaise cattle in respect to their compliance with the breeding goals and standards adopted by the Polish Association of Breeders and Producers of Beef Cattle. The study was based on data for the years 2002–2015 from the PABPBC and for the years 1996–2001 from the National Center of Animal Breeding (NCAB). The properties that were evaluated were the average weight of cows [kg], average body weight of calves after birth [kg], average daily weight gain of calves from birth to 210 days [g], average body weight of calves at 210 days [kg] and average milk yield of cows [kg]. Gradual decline in the share of the national Charolaise beef cattle population was observed as well as sSignificant decrease in the number of crossbreds with Charolaise breed. The aerage weight of cows in 2005–2006 amounting to 559.4 and 570.2 kg (for purebred) and 556.6 and 561.1 (for crossbred) meet the breeding standards for of cows entered in the initial part of the herd book, which define the minimum weight of Charolaise cows after first calving as 550 kg. The average daily weight gain of calves increased considerably in the last years of analysis. The daily body gain of purebred calves was usually higher in purebred population. The daily gains of heifers and bulls were high and usually exceeded 1000 g. For both populations growing trend of daily body gain could be observed. According to breeding standards, body weight at weaning for both heifer and bull calves were at a medium level. The average weight of bull calves was approx. 20 kg higher than the average weight of heifer calves of the same age in both purebred and crossbred populations.