首页> 外文OA文献 >Monitoring of white striping and wooden breast cases and impacts on quality of breast meat collected from commercial broilers (Gallus gallus)
【2h】

Monitoring of white striping and wooden breast cases and impacts on quality of breast meat collected from commercial broilers (Gallus gallus)

机译:监测商业肉鸡收集的乳房肉质质量的监测及影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Objective This study aimed at investigating white striping (WS) and wooden breast (WB) cases in breast meat collected from commercial broilers. Methods A total of 183 breast samples were collected from male Ross 308 broilers slaughtered at the age of 6 weeks (n = 100) and 7 weeks (n = 83). The breasts were subjected to meat defect inspection, meat quality determination and histology evaluation. Results Of 183, 4 breasts from 6-week-old broilers were classified as non-defective while the others exhibited the WS lesion. Among the 6-week-old birds, the defective samples from the medium size birds (carcass weight ≤2.5 kg) showed mild to moderate WS degree with no altered meat quality. Some of the breasts from the 6-week-old birds with carcass weight above 2.5 kg exhibited WB in accompanied with the WS condition. Besides of a reduction of protein content, increases in collagen matter and pH values in the defective samples (p<0.05), no other impaired quality indices were detected within this group. All 7-week-old broilers yielded carcasses weighing above 2.5 kg and showed abnormal characteristics with progressive severity. The breasts affected with severe WS and WB showed the greatest cook loss, hardness, springiness and chewiness (p<0.05). Development of WB induced significantly increased drip loss in the samples (p<0.05). Histology indicated necrotic events in the defective myofibers. Based on logistic regression, increasing percent breast weight by one unit enhanced the chance of WS and WB development with advanced severity by 50.9% and 61.0%, respectively. Delayed slaughter age from 6 to 7 weeks increased the likelihood of obtaining increased WS severity by 56.3%. Conclusion Cases of WS and WB defects in Southeast Asia have been revealed. Despite few cases of the severe WS and WB, such abnormal conditions significantly impaired technological properties and nutritional quality of broiler breasts.
机译:目的本研究旨在调查从商业肉鸡收集的母乳中的白色条纹(WS)和木质乳房(WB)病例。方法从6周龄(n = 100)和7周(n = 83)的雄性罗斯308肉鸡中收集总共183个乳房样品。乳房遭受肉类缺陷检查,肉质测定和组织学评估。结果183,6周,6周龄肉鸡的乳房被归类为非缺陷,而其他肉类表现出WS病变。在6周龄鸟类中,中等大小鸟类(胴体重量≤2.5千克)的缺陷样本显示出轻度至中等WS度,没有改变的肉质。来自6周龄鸟类的一些乳房,胴体重量超过2.5公斤,伴随着WS条件。除了减少蛋白质含量之外,胶原物质的增加和缺陷样品中的pH值(P <0.05),在该组内未检测到其他受损的质量指标。所有7周龄肉鸡都会产生重量超过2.5千克的尸体,并显示出具有渐进性的异常特征。受严重的WS和WB影响的乳房显示出最大的厨师损失,硬度,弹性和咀嚼(P <0.05)。 WB的开发诱导样品中的滴落损失显着增加(P <0.05)。组织学表明缺陷肌纤维中的坏死事件。基于Logistic回归,一个单位的乳房重量百分比增强了WS和WB开发的机会,分别以50.9%和61.0%分别增强了WS和WB的发展。从6到7周的延迟屠宰年龄提高了从56.3%获得增加的Ws严重程度的可能性。结论东南亚WS和WB缺陷的案例已揭晓。尽管有很少的严重WS和WB的病例,但这种异常情况会显着受损的技术性质和肉鸡营养品质。

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号