Determination and Analysis of Slaughter Performance, Chest Muscle Quality and Composition of Different Chicken Breeds

doi:10.11924/j.issn.1000-6850.casb2021-0494

Abstract

Abstract:

The purpose of this study is to investigate the differences of slaughter performance and muscle quality and composition between ‘wod’ series broilers (which are self-bred in China) and AA broilers. The slaughter performance, chest muscle quality, flavor precursors content, mineral elements content and vitamins content of 7-week-old broilers were determined, and the differences were compared between ‘wod’ series broilers and AA broilers. The results showed that the dressed percentage, percentage of eviscerated yield and percentage of chest muscle of wod168 and wod178 were extremely significantly lower than those of wod188 and AA (P<0.01), while the percentage of wings was extremely significantly higher than that of wod188 and AA (P<0.01). The pH value and tenderness of chest muscle of wod168 were extremely significantly lower than those of AA (P<0.01), and the L value and b value of meat color were significantly higher than those of AA (P<0.05). The contents of amino acids, mineral elements and crude protein in chest muscle were the highest and the contents of intramuscular fat and cholesterol were the lowest in wod168. wod168 did not have good meat production performance, but performed better on breast meat quality, which was more consistent with consumer demand for good meat quality.

Key words: chicken, slaughter performance, meat quality, flavor precursors, mineral elements, vitamins, determination

CLC Number:

S831.2

MA Meng, WANG Kehua, QU Liang, DOU Taocun, GUO Jun, WANG Xingguo, HU Yuping, LU Jian. Determination and Analysis of Slaughter Performance, Chest Muscle Quality and Composition of Different Chicken Breeds[J]. Chinese Agricultural Science Bulletin, 2022, 38(9): 137-142.

Figures/Tables 7

References 34

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种类	粗蛋白质≥	粗脂肪≥	粗纤维≤	粗灰分≤	钙	总磷≥	氯化钠	含硫氨基酸≥
小鸡料8105	21.00	3.00	5.00	7.00	0.70-1.20	0.60	0.30-0.80	0.65
中鸡料8115	19.00	3.00	6.00	7.00	0.70-1.20	0.55	0.30-0.80	0.60

种类	粗蛋白质≥	粗脂肪≥	粗纤维≤	粗灰分≤	钙	总磷≥	氯化钠	含硫氨基酸≥
小鸡料8105	21.00	3.00	5.00	7.00	0.70-1.20	0.60	0.30-0.80	0.65
中鸡料8115	19.00	3.00	6.00	7.00	0.70-1.20	0.55	0.30-0.80	0.60

品种	屠体率	全净膛率	胸肌率	腿肌率	翅膀率	腹脂率	腿比率
wod168	91.20±1.24^B	69.50±1.62^C	19.92±1.98^D	19.21±2.15^a	11.83±0.64^A	3.92±1.31^A	29.79±1.87^A
wod178	91.80±1.11^B	73.00±1.84^B	26.21±2.43^C	20.00±1.14^ab	11.04±0.62^B	2.92±1.28^B	28.71±1.99^AB
wod188	94.38±2.18^A	76.04±1.55^A	29.21±2.02^B	20.50±2.32^b	9.83±1.00^C	2.58±0.97^BC	28.83±3.12^AB
AA	93.63±1.56^A	76.08±1.28^A	31.21±1.91^A	19.67±2.06^ab	9.42±0.93^C	2.00±0.78^C	27.50±3.14^B

品种	屠体率	全净膛率	胸肌率	腿肌率	翅膀率	腹脂率	腿比率
wod168	91.20±1.24^B	69.50±1.62^C	19.92±1.98^D	19.21±2.15^a	11.83±0.64^A	3.92±1.31^A	29.79±1.87^A
wod178	91.80±1.11^B	73.00±1.84^B	26.21±2.43^C	20.00±1.14^ab	11.04±0.62^B	2.92±1.28^B	28.71±1.99^AB
wod188	94.38±2.18^A	76.04±1.55^A	29.21±2.02^B	20.50±2.32^b	9.83±1.00^C	2.58±0.97^BC	28.83±3.12^AB
AA	93.63±1.56^A	76.08±1.28^A	31.21±1.91^A	19.67±2.06^ab	9.42±0.93^C	2.00±0.78^C	27.50±3.14^B

品种	pH	嫩度	肉色			系水力
品种	pH	嫩度	L	a	b	系水力
wod168	5.95±0.14^Bc	2.19±0.25^Bc	49.77±3.24^a	1.36±0.96	8.39±2.25^a	52.79±3.62^a
wod178	6.11±0.16^ABb	2.39±0.16^ABb	47.58±2.17^ab	1.17±0.50	7.47±1.86^ab	50.73±4.22^ab
wod188	6.27±0.19^Aa	2.30±0.26^Bbc	48.47±3.45^ab	1.51±0.94	7.38±1.85^ab	49.73±3.52^b
AA	6.22±0.10^Aab	2.61±0.18^Aa	46.75±2.99^b	1.20±0.68	6.70±1.79^b	53.23±1.54^a