Different energy sources in diets for fattening of chickens
1997
Pavlovski, Z. | Cmiljanic, R. | Vracar, S. | Hopic, S. | Lukic, M. (Institut za stocarstvo, Beograd - Zemun (Yugoslavia))
In order to investigate influence of different energy source in diets for fattening chickens of meat quality, three groups (A,B,C) of one-day old Arbor Acres chickens were formed. Group A had pork fat as energy source, group B refined sunflower oil and group C toasted soybean grain. At the age of 49 days, random chicken samples were taken in order to investigate the quality of meat (dressing percentage, conformation measures, yield of major carcass parts and abdominal fat). Somewhat higher value of dressing percentage "tradicionally dressed carcass" in chickens of both sexes was determined in group C (83.41), compared to groups A and B (82.34 and 83.00). Values of dressing percentage "ready to cook" varied from 76.99 (group C) to 75.81 (group A), while the lowest value of the dressing percentage "oven ready carcass" was determined for group A (66.51). However, there were no significant differences between calculated mean values of all dressing percentages. Also, there were no significant differences between calculated mean values of conformation measures. The yield of major carcass parts in percentage of live body mass ranged from 37.11 (group A) to 38.60 (group B), and the determined differences were not significant. The only statistically significant differences were determined for the percentage of abdominal fat and varied from 1.76 (group B) to 2.30 and 2.31 (groups A and C).
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