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Wyszukujesz frazę "meat quality" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Relationships between meat quality traits of Popielno White rabbits
Autorzy:
Palka, S.
Migdal, L.
Otwinowska-Mindur, A.
Kmiecik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2119557.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
correlation
meat quality traits
rabbit
Opis:
The purpose of the study was to determine the phenotypic correlations between meat quality traits in Popielno White rabbits. The experimental material consisted of 93 Popielno White rabbits (49♀; 44♂). From weaning at 35 days of age until 84 days of age, the animals were housed in a battery system and fed ad libitum with a complete feed containing 10,2 MJ of metabolic energy, 16,5% total protein and 14% crude fibre. The rabbits were slaughtered at 84 days of age with a body weight of about 2,6 kg. The research material was the meat of longissimus lumborum muscle. Meat quality characteristics, i.e. meat acidity, meat colour, shear force, meat texture and cooking loss, were examined. The results were analysed using the SAS package (2014). Many statistically significant relationships were found between the meat quality characteristics of Popielno White rabbits. The results indicate that potential selection towards a change in pH value may adversely affect the meat texture of Popielno White rabbits. Selection to improve the colour of the meat of this breed may have a negative effect on its shear force, hardness and cooking loss. Selection to improve shear force will improve the other texture profile parameters. An improvement in the meat texture parameters of Popielno White rabbits will lead to an improvement in the cooking loss value. Dependencies among meat quality traits in Popielno White rabbits are high enough to be useful in selecting an appropriate breeding method.
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2021, 17, 1; 35-43
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of the use of probiotics in the diet of broiler chickens
Autorzy:
Poberezhets, J.
Kupchuk, I.
Powiązania:
https://bibliotekanauki.pl/articles/2118999.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
broiler chicken
probiotic
feed
productivity
meat quality
Opis:
The aim of the experiment was to research the productivity and carcass characteristics of broiler chickens receiving a probiotic feed supplement. The probiotics added to the diet of broiler chickens were shown to increase live weight by 11,9%, average daily gains by 12,1%, and total weight gain by 12,2%, reducing feed consumption per kg increase by 8,9% compared with the control. Consumption of the probiotic feed supplement increased the pre-slaughter live weight by 12,0% and the gutted carcass weight by 13,3% relative to the control.
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2021, 17, 4; 9-16
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rearing system, utility type and age of hens as factors modifying the hydrolytic activity of lysozyme
Autorzy:
Wengerska, K.
Spustek, D.
Krakowiak, D.
Drabik, K.
Batkowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2119514.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
meat-type layers
hen
extensive system
muramidase
egg quality
albumen
Opis:
The aim of study was to analyse the impact of the utility type, age and rearing system of hens on egg quality traits and the enzymatic activity of egg albumen lysozyme (LA). The research material consisted of eggs from two genotypes of hens: Hy-Line Brown laying hens and Ross 308 parental stock (meat-type). Laying-type hens were reared in two systems (60 eggs/system): intensive (litter, balanced feed) and extensive (open runs, on-farm fodder). The second variable was the age of hens from the parent stock (29, 33, 41, 53 and 70 wks; 60 eggs/age). Selected quality traits of eggs (egg weight, albumen weight and its proportion in the egg, albumen height, and Haugh unit) were measured, as well as albumen lysozyme activity. The rearing system significantly modified egg weight, albumen weight, and thick albumen height, but did not affect LA. LA also did not depend on the utility type of birds; however, it decreased after 33 weeks of age. The enzymatic activity of lysozyme was highly negatively correlated with the age of hens, and positively with albumen height and Haugh unit.
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2021, 17, 3; 19-29
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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