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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.49 No.4
- 발행연도
- 2022.12
- 수록면
- 979 - 988 (10page)
이용수
이 논문의 연구 히스토리 (3)
2022
Evaluation of preslaughter losses, meat quality, and physiological characteristics of broilers in response to crating density for the standard of animal welfare and to seasonal differences
Myunghwan Yu
,
Elijah Ogola Oketch
,
Jun Seon Hong
외 4명
Korean Journal of Agricultural Science
2022.12
학술저널
Comparison of different crate material types for transit on meat quality and blood metabolites of broilers during the summer season
Myunghwan Yu
,
Elijah Ogola Oketch
,
Jun Seon Hong
외 3명
한국가금학회 정기총회 및 학술발표회
2022.11
학술대회자료
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초록· 키워드
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The effects of seasonal differences and crating densities on the preslaughter losses, breast meat quality, and physiological indices of broilers were determined. A total of 600 broilers aged 35 days were divided into 10 treatment groups based on five crating densities (10.3, 11.5, 12.8, 14.1, 15.4 birds·m<SUP>-2</SUP>) with two seasons (i.e., summer and winter) to give six replicates and were placed at various locations in the truck. The birds were transported in crates having dimensions of 1.0 m × 0.78 m × 0.26 m. The transportation distance was 20 km for 40 minutes (average 30 - 50 km·h<SUP>-1</SUP>) during the early morning. The results revealed that broilers transported at densities of 14.1 and 15.4 birds·m<SUP>-2</SUP> recorded lower (p < 0.05) pH, water-holding capacity (WHC), and muscle redness compared to those at densities of 11.5 birds·m<SUP>-2</SUP>. Furthermore, higher (p < 0.05) cooking loss was found in birds stocked at more than 14.1 birds·m-2 compared to the other treatments. However, no effect (p > 0.05) with different crating densities on body weight loss, carcass traits, glucose, lactate, or muscle yellowness was observed. Crating density of 14.1 birds·m<SUP>-2</SUP> showed lower (p < 0.05) cortisol contents compared with birds at 10.3 and 15.4 birds·m<SUP>-2</SUP>. Winter transportation had higher (p < 0.05) relative breast meat weight, cooking loss, muscle redness, and cortisol contents whereas summer transportation had higher (p < 0.05) glucose and lactate contents in the blood plasma of broilers. In conclusion, the stocking of 12.8 birds·m<SUP>-2</SUP> is recommended to minimize stress responses and undesirable changes that could negatively affect muscle quality.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
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