Horoszewicz E.,Katedra Metod Hodowlanych |
Pieniak-Lendzion K.,Katedra Metod Hodowlanych |
Niedziolka R.,Katedra Metod Hodowlanych
Zywnosc. Nauka. Technologia. Jakosc/Food. Science Technology. Quality | Year: 2010
The purpose of supplementing feed mixtures with various additions is not only to modify the chemical composition of meat to be produced, but, also, to improve the slaughter value. Therefore, it was attempted to assess the post-slaughter value of animals fed a feed supplemented with flax seeds. The fattening period comprised ca. 150 days and during this period, the animals reached their final weight of about 35.5 kg. While fattening, the consumption of feed per 1 kg body weight gain of goat kids was determined and the daily body weight gains were calculated from the moment of weaning, i.e. from the 60th day until the slaughter on the 150th day. In the group of goat kids fed the feed supplemented with flax seeds, higher daily body weight gains (211 g/24 h) were obtained compared with the control group (190 g/24 h). The kind of feed the animals were fed impacted the degree of fat accumulation and resulted in the higher per cent content of kidney fat in the group of male goat kids offered the feed mixture supplemented with flax seed (3.10 %) as compared to the control group (2.85 %).
Biesiada-Drzazga B.,Katedra Metod Hodowlanych |
Socha S.,Katedra Metod Hodowlanych |
Janocha A.,Katedra Metod Hodowlanych |
Banaszkiewicz T.,Katedra Metod Hodowlanych |
Koncerewicz A.,Katedra Metod Hodowlanych
Zywnosc. Nauka. Technologia. Jakosc/Food. Science Technology. Quality | Year: 2011
The objective of the paper was to assess the slaughter value and quality of muscular tissue in pheasants reared in an aviary system. At the age of 20 weeks, the average weight of hens was 813 g and of cocks 1039 g. Compared to females, the males were characterized by a significantly higher slaughter value (71.8 and 68.9 %, respectively) and a significantly higher weight of eviscerated carcass (735.7 and 550.4 g, respectively). Irrespective of their gender, the birds showed a similar breast musculature (27.5 and 27.7 %, respectively) and leg musculature (19.3 and 19.1%, respectively); however, the fatness of carcasses (6.6%) was a little lower in cocks than that in hens (7.8%). Compared to the leg muscles, the breast muscles contained more dry matter (27.23 and 26.31 %, respectively), including total protein (25.09 and 23.30 %) and, at the same time, their fat was twofold lower (0.84 and 1.76 %). The intramuscular fat was characterized by a valuable fatty acid profile regardless of the muscle type. The breast muscles contained 30.59 % of SFA and 69.18 % of UFA, whereas the leg muscles: 29.78 and 69.76 %, respectively.