Assessing locomotion deficiency in broiler chicken
Assessing locomotion deficiency in broiler chicken
复制标题
评估肉鸡运动缺陷
DOI：
10.1590/s0103-90162010000200001
复制
发表时间：
2010
影响因子：
2.6
通讯作者：
A. Souza
中科院分区：
文献类型：
--
作者：
I. A. Nääs;I. C. L. A. Paz;M. Baracho;A. Menezes;K. Lima;L. Bueno;M. M. Neto;V. Carvalho;Ianê C. L Almeida;A. Souza
肉鸡生产中的运动缺陷导致福利差，并导致饮水和喂养行为的改变，从而导致体重增加减少。本研究旨在通过分析肉鸡在行走过程中双脚的垂直峰值力来评估肉鸡的运动缺陷。建造了一个带有入口坡道、中间水平走道和出口坡道的腔室。在人行道上放置一个带有压电晶体传感器的薄垫，以记录在力平台上行走时足部的台阶垂直峰值力。测量系统由一个带有电子传感器的垫子和软件组成，该软件可以真实的记录力并处理和分析数据。从两台数码摄像机拍摄录像，并用于步态评分。随机选择40只雄性肉鸡，在相似的饲养条件和农场中生长，年龄从49到28日龄不等（10只同龄鸡）用于试验。测量包括诱导鸟在测力平台上行走，测力平台自动记录台阶的峰值垂直力。结果表明，鸟类的步态评分随着体重和年龄的增加而增加。每只脚的峰值力不对称，与年龄或步态评分无关。尽管在肉鸡中未目视识别，但右脚和左脚的峰值垂直力值不同，导致行走缓慢且不均匀。老年鸟类的行走缺陷更为严重。
Locomotion deficiencies in broiler production cause poor welfare and lead to change in drinking and feeding behavior with consequent loss in weight gain. This research aimed to assess locomotion deficiencies in broiler chicken by analyzing the vertical peak force on both feet during walk. A chamber was built with an inlet ramp, a horizontal walkway in the middle and an outlet ramp. In the walkway a thin mat with piezoelectric crystal sensors was placed to record the step vertical peak force of the feet while walking on the force platform. The measurement system consisted of a mat with electronic sensors and software that allowed real time recording of the forces and the processing and analysis of data. Footage was taken from two digital video cameras and used for gait scoring. Forty male broilers were chosen at random, grown under similar rearing conditions and farms, with age varying from 49 to 28 days (ten birds of same age) to be used in the trial. Measurement consisted of inducing the bird to walk on the force platform which automatically registered the peak vertical force of the steps. Results showed that the gait score increased with the weight and age of the birds. Peak force asymmetry was found for each foot, independent of age or gait score. Although not identified visually in the broilers, the peak vertical force values differed in both right and left feet leading to slow and uneven walking. Walking deficiency was more severe in older birds.
野生火鸡加速奔跑时的机械功率输出。
DOI：
10.1242/jeb.205.10.1485
发表时间：
2002
期刊：
The Journal of experimental biology
影响因子：
--
作者：
Roberts,ThomasJ;Scales,JeffreyA
通讯作者：
Scales,JeffreyA