However, the feed additives did not influence (p>0.05) the carcass yield
, spleen, bursa of fabricius, and small intestine.
The utilization of enzymatic complex (xylanase, amylase, and protease) in diets for broiler chickens reduced the carcass yield
Higher values of carcass yield
were described by KABEYA et al.
were determined according to the main commercial parts of breast meat (including pectoralis major and pectoralis minor muscles) and the leg (including thigh and drumstick meat), weighed, and the values were expressed as a percentage of carcass weight.
Item Silages CV (%) SS (1) SSI (2) SSIM (3) SSM (4) Average daily 1.32 1.45 1.68 1.50 17.83 gain (kg) Carcass gain (kg) 0.84 0.87 0.99 0.96 15.70 Carcass yield
(%) 54.41 53.62 53.59 54.69 2.54 Feed conversion 5.86 5.99 5.71 6.03 10.18 (1) Soybean silage (control); (2) Soybean silage with inoculant; (3) Soybean silage with inoculant and molasses; (4) Soybean silage with molasses.
toyoi (TY) may be an alternative to avilamycin antibiotic as a growth promoter for broiler chickens between 1 and 42 days old and does not affect the carcass yields
of the birds.
With regard to the slaughter age, bulls slaughtered younger (16 months) showed higher animal performance, better feed efficiency and carcass yield
. However, a lower age at slaughter had no negative effect on carcass and meat characteristics.
In these studies the yield was influenced by the weight at slaughter, the lighter the animal the lower the yield, by the diet, in which animals fed diets with higher quality or with more concentrate tend to exhibit a greater carcass yield
Table 6 shows the carcass yield
and partial meat ratio of various KND crossbreds used in the experiment.
Eviscerated carcass weight, without feet, head and belly fat, was used to calculate carcass yield
, and compared to live weight of broilers weighed before killing.
Additionally, the use of hard scalding has been related to the decrease of the carcass yield
due, mainly, to lipid losses by liquefaction [2,3].
At the age of 28 days, four birds (2 males and 2 females) from each experimental group were slaughtered to study the carcass traits including Live weight (g), Dressed weight (g), Carcass yield
(%), Giblet weight (g), Breast Meat Yield (%) and Thigh Yield (%).