<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This research was conducted to compare performance, some blood parameters, bone quality and musculus pectoralis pH level in broiler flocks containing 15,000 (I), 25,000 (II) and 35,000 (III) birds. For this purpose, two different flocks from each capacity were simultaneously observed throughout two growth periods in summer and autumn seasons. A total of 20 broilers (10 males and 10 females) per different flock capacity, having stable live weight were selected on 32nd day of growing period. Broiler chickens were slaughtered by decapitation and their blood samples were drained into special tubes. Musculus pectoralis pH measurement was performed ten minutes after slaughter. Bones were extracted from meat and analyzed. Live weights of groups on days 1, 7, 14, 21, 28 and on the day of slaughter were similar to each other (P>0.05). The mortality rate was lower in group I (P≤0.01). Feed efficiency deteriorated negligibly in group III (P=0.078). Serum glucose and uric acid levels were high in group III (P≤0.01). Intergroup differences in serum total cholesterol, very-low-density lipoprotein cholesterol (VLDL), triglycerides, protein levels and enzyme activities of alkaline phosphatase and creatine kinase were statistically insignificant (P>0.05). Dimensions, weights and ash level of tibia and femur, bone mineral density (BMD) and bone mineral content (BMC) of tibia were observed to have similar values among the groups (P>0.05). Musculus </p><p>pectoralis pH level in groups I, II and III was determined as 5.93, 5.94 and 6.13, respectively (P≤0.05).</p></abstract>

This research was conducted to compare performance, some blood parameters, bone quality and musculus pectoralis pH level in broiler flocks containing 15,000 (I), 25,000 (II) and 35,000 (III) birds. For this purpose, two different flocks from each capacity were simultaneously observed throughout two growth periods in summer and autumn seasons. A total of 20 broilers (10 males and 10 females) per different flock capacity, having stable live weight were selected on 32nd day of growing period. Broiler chickens were slaughtered by decapitation and their blood samples were drained into special tubes. Musculus pectoralis pH measurement was performed ten minutes after slaughter. Bones were extracted from meat and analyzed. Live weights of groups on days 1, 7, 14, 21, 28 and on the day of slaughter were similar to each other (P>0.05). The mortality rate was lower in group I (P≤0.01). Feed efficiency deteriorated negligibly in group III (P=0.078). Serum glucose and uric acid levels were high in group III (P≤0.01). Intergroup differences in serum total cholesterol, very-low-density lipoprotein cholesterol (VLDL), triglycerides, protein levels and enzyme activities of alkaline phosphatase and creatine kinase were statistically insignificant (P>0.05). Dimensions, weights and ash level of tibia and femur, bone mineral density (BMD) and bone mineral content (BMC) of tibia were observed to have similar values among the groups (P>0.05). Musculus pectoralis pH level in groups I, II and III was determined as 5.93, 5.94 and 6.13, respectively (P≤0.05).

Effects of Flock Size in Broilers Reared in a Floor System on Performance, Some Blood Parameters, Bone Quality and Musculus Pectoralis Ph Level

Firat University, Faculty of Veterinary Medicine, Animal Science Department, 23119, Elazig, Turkey

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This research was conducted to compare performance, some blood parameters, bone quality and musculus pectoralis pH level in broiler flocks containing 15,000...

Effects of Flock Size in Broilers Reared in a Floor System on Performance, Some Blood Parameters, Bone Quality and Musculus Pectoralis Ph Level

Published Online: Apr 23, 2015

Page range: 505 - 516

Received: Jun 09, 2014

Accepted: Sep 12, 2014

DOI: https://doi.org/10.2478/aoas-2014-0076

Keywords
broiler, flock size, performance, bone quality, welfare

© by Ulku Gulcihan Simsek

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects of Flock Size in Broilers Reared in a Floor System on Performance, Some Blood Parameters, Bone Quality and Musculus Pectoralis Ph Level

Published Online: Apr 23, 2015

Page range: 505 - 516

Received: Jun 09, 2014

Accepted: Sep 12, 2014

DOI: https://doi.org/10.2478/aoas-2014-0076

Keywordsbroiler, flock size, performance, bone quality, welfare

© by Ulku Gulcihan Simsek

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
broiler, flock size, performance, bone quality, welfare