Eratalar Sabri Arda, Okur Nezih, Yaman Ahmet
Faculty of Agriculture, Department of Poultry Science, Golkoy Campus, Bolu Abant Izzet Baysal University, Bolu, Türkiye.
Arch Anim Breed. 2022 May 10;65(2):199-206. doi: 10.5194/aab-65-199-2022. eCollection 2022.
The effects of stocking density on slaughter performance and meat quality were primarily investigated in this research. A total of 240 Pekin ducks were used, and they were reared until slaughter age (42 d) in three different stocking density groups (three, five and seven ducklings m ). To compare the slaughter performance of the ducklings' live weight, carcass weight, carcass yield, thigh and breast meat weight and yield, and edible giblet weight (heart, liver and gizzard) were investigated. The meat quality was compared between the treatment groups based on dry matter ratio, cooking loss, water-holding capacity, pH values, and colour parameters ( , , , , and values). Carcass weight, carcass yield, thigh and breast meat weight were found to decrease in parallel to the increasing stocking density, resulting in a reduction in thigh and breast meat weights and ratios ( ). Increasing the stocking density decreased the heart weight and positively improved the liver and gizzard ratio ( ). However, it did not affect the meat quality parameters investigated in this research ( ). The breast meat of the ducks reared under higher stocking density had higher , and values, lower value ( ), and similar and values ( ). Evaluating the overall research findings, it was concluded that increased stocking density when rearing ducks negatively affects the slaughter performance, affecting only breast meat colour and weight of thigh meat with skin in investigated meat quality parameters.
本研究主要探讨了饲养密度对屠宰性能和肉质的影响。共使用了240只北京鸭，将它们饲养至屠宰年龄（42日龄），分为三个不同饲养密度组（每平方米3只、5只和7只雏鸭）。为比较雏鸭的屠宰性能，对活重、胴体重、胴体产率、大腿和胸肉重量及产率以及可食内脏重量（心脏、肝脏和砂囊）进行了研究。基于干物质比例、蒸煮损失、持水力、pH值和颜色参数（L*、a*、b*、C*、h和ΔE值）对各处理组之间的肉质进行了比较。发现胴体重、胴体产率、大腿和胸肉重量随饲养密度的增加而平行下降，导致大腿和胸肉重量及比例降低（P<0.05）。饲养密度增加使心脏重量降低，肝脏和砂囊比例呈正改善（P<0.05）。然而，它并未影响本研究中所调查的肉质参数（P>0.05）。在较高饲养密度下饲养的鸭子胸肉具有较高的L、a和C值，较低的b*值（P<0.05），以及相似的h*和ΔE值（P>0.05）。综合研究结果得出结论，饲养鸭子时饲养密度增加会对屠宰性能产生负面影响，在所调查的肉质参数中仅影响胸肉颜色和带皮大腿肉重量。
