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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Carcass characteristics of farmed fallow deer bucks

100%
Czajkowska J., Bogdaszewski P.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2021
|
tom 17
|
nr 2
2

Effect of L-carnitine on performance and dressing percentage of broiler chickens

86%
Michalczuk M., Lukasiewicz M., Niemiec J., Wnuk A., Mroczek-Sosnowska N.
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
|
2012
|
tom 51
The study was conducted on 640 chickens randomly divided into two groups, each having four replications (4 control and 4 experimental - L-carnitine) with 80 chickens per pen. Chickens in the control (C) and experimental groups (E) received a feed of the same nutritional value, and chickens from the experimental group were supplemented with Aminocarnifarm (43.68% of L-carnitine) in drinking water (62.5 g per 100 l) during three periods: from 1 to 7, 21 to 28, and 36 to 42 days of age. The study evaluated the effect of L-carnitine supplemented to chickens on production results and results of slaughter analysis. It was found that Aminocarnifarm supplemented to drinking water improved feed conversion during the whole rearing period, reduced mortality, and contributed to increases in average body weight, dressing percentage and proportion of leg muscles (males), reduced the proportion of breast muscles (males and females), and decreased carcass fatness (males).
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Effect of sex on results of slaughter analysis of grey partridge Perdix perdix

86%
Wnuk A., Lukasiewicz M., Mroczek-Sosnowska N., Niemiec J., Popczyk B., Balcerak M.
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
|
2014
|
tom 53
The experimental material included grey partridges Perdix perdix planned for re-introduction into the natural habitat, reared at the Center of Game Breeding on the area of Mazovia Province. 10 hens and 10 roosters were selected for slaughter. After exsanguination, plucking and evisceration, the birds were cooled for 24 h to a temperature of 4°C. The carcasses were subjected to dissection to enable determination of dressing percentage and calculation in the carcass contents of: breast muscles, leg muscles, adipose fat and giblets. The study showed no effect of sex on results of slaughter analysis of grey partridge.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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A preliminary study on selected utility traits and mineral composition of meat in King pigeons managed under extensive system in Poland

72%
Majewska D., Pohorecki T., Matysiak B.
Acta Scientiarum Polonorum. Zootechnica
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2021
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tom 20
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nr 1
5

Fattening results and slaughter quality of young bulls fed different diets in the last four months before slaughter

72%
Smiecinska K., Wajda S.
Annals of Animal Science. Supplement
|
2005
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nr 2
6

Carcass composition and breast muscle microstructure in guinea fowl (Numida meleagris L.) of different origin

72%
Bernacki Z., Bawej M., Kokoszynski D.
Folia Biologica
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2012
|
tom 60
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nr 3-4
7
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Effect of different diets fed to a breeder flock of game pheasants on meat traits of their offspring

72%
Kokoszynski D., Bernacki Z., Lawski K., Korytkowska H.
Acta Scientiarum Polonorum. Zootechnica
|
2011
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tom 10
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nr 2
The study was carried out with 51 game pheasants derived from parents that were fed during the reproductive period with a commercial feed mixture (25 birds) or feed mixture and whole maize grain (26 birds). Pheasants were kept in a confined facility, without regard to sex, in cages on plastic mesh floor for the first three weeks and in pens on straw later on. During the study, offspring received commercial feed mixtures for pheasants or turkeys. The introduction of whole maize grain in the ration of parent pheasants reduced the body weight of their offspring except at 12 weeks of age. In addition, it caused significant decreases in the length of trunk with neck, lower thigh and shank, and chest circumference in 4-week-old pheasants, and in the length of trunk with neck, trunk and lower thigh in 18-week-old birds. Dressing percentage was high in both groups and exceeded 72%. The proportion of breast muscles was higher in the carcasses of pheasants derived from parents fed a low-protein diet with whole maize grain (31.0 vs. 29.0%). Areverse relationship was found for the proportion of leg muscles in the carcass with neck (23.5 vs. 24.0%). The proportion of skin with subcutaneous fat was similar in both experimental groups (6.4 vs. 6.3%).
8

Rearing and fattening performance of variously fed crossbreeds of Muscovy drakes and Pekin-type ducks

72%
Mazanowski A., Bernacki Z.
Roczniki Naukowe Zootechniki
|
2000
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tom 27
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nr 4
9

The use of distillers dried grains with solubIes (DDGS) from wheat and maize as a source of protein in concentrates for fattening young bulls

58%
Lozicki A., Dymnicka M., Arkuszewska E., Wierzbowicz M.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2010
|
tom 06
|
nr 2
10

Effect of dietary copper chelate and herbal mixture on slaughter turkey performance

58%
Dmoch M., Polonis A.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2010
|
tom 06
|
nr 1
11

Comparison of slaughter value and muscle properties of selected cattle breeds in Poland - review

51%
Iwanowska A., Pospiech E.
Acta Scientiarum Polonorum. Technologia Alimentaria
|
2010
|
tom 09
|
nr 1
7-22
Abstract. The aim of the paper was the comparison of slaughter value and muscle properties of dual-purpose cattle most common in Poland with that of beef type, from which high quality culinary meat is obtained. Four breeds were compared: two of them were dual-purpose type i.e. Holstein-Fresian of Black and White variety and Polish Red and the other two - of beef type i.e. Limousine and Hereford. There are discussed factors influencing cattle slaughter value and muscle properties, i.e. the impact of the utility type, gender, age, feeding Systems, as well as maturation rate of animals. The slaughter value was presented using the dressing percentage and the content of main components in the carcass i.e. the muscle tissue, fat and bones. The tissue composition of analysed cattle breeds and the share of main cuts in their carcasses were presented. Higher daily gains of beef type or dual-purpose breeds are connected with a higher number of muscle fibers (hyperplasia) and also with a bigger size of their diameter (hypertrophy). These phenomena are accompanied by increased lightness of meat colour what is the result of changes in the muscle fibers metabolism and the proportion of myosin heavy chains (MHC) of the I, Ila and IIx type. Observed differences in the slaughter value existed not only between breeds, but also inside them indicating the need for further improvement of animal selection and deeper analysis of factors influencing it. It was stated that the amount of culinary meat obtained from carcasses may be increased not only through the selection of corresponding genotypes, but also through the modification of the system of carcass cutting. The performed analysis of the slaughter value emphasizes special significance of the domestic Polish Red cattle also as a breed for production of good quality meat similar to beef cattle breeds.
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