Effects of outdoor access on growth performance, carcass composition, and meat characteristics of broiler chickens

被引：81

作者：

Chen, X. ^{[1
]}

Jiang, W. ^{[1
]}

Tan, H. Z. ^{[2
]}

Xu, G. F. ^{[1
]}

Zhang, X. B. ^{[1
]}

Wei, S. ^{[2
]}

Wang, X. Q. ^{[1
]}

机构：

[1] South China Agr Univ, Dept Anim Sci, Guangdong Prov Key Lab Agro Anim Genom & Mol Bree, Key Lab Chicken Genet Breeding & Reprod,Minist Ag, Guangzhou 510642, Guangdong, Peoples R China

[2] WENs Grp, Prod Technol Dept, Yunfu 527300, Peoples R China

来源：

POULTRY SCIENCE | 2013年 / 92卷 / 02期

基金：

中国国家自然科学基金;

关键词：

outdoor access; growth performance; meat characteristic; broiler; FED LOW-NUTRIENT; FREE-RANGE; STANDARD DIETS; RAISED INDOORS; BREAST MUSCLE; QUALITY; ATTRIBUTES; TRAITS; SYSTEM; YIELD;

D O I：

10.3382/ps.2012-02360

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The present study was conducted to investigate the effects of outdoor access on the growth performance and meat quality of broiler chickens. Thirty-five-day-old female broilers were divided into 3 groups with 6 replicates of 124 birds each: (1) birds reared indoors (control group); (2) birds reared with outdoor access since 36 d of age (35-d group); and (3) birds reared with outdoor access since 71 d of age (70-d group). The results showed that outdoor access had no effect on growth performance, carcass yield, meat yield, muscle protein content, muscle fiber characteristics, or water-holding capacity (P > 0.05). Chickens from the outdoor access groups had a better appearance and degree of evenness. Birds in the outdoor access groups had a significantly lower lung percentage than birds in the control group (P < 0.05), whereas the kidney percentage of the 35-d group was significantly lower than that of the control group (P < 0.05). The meat of chickens in the 35-d group had higher L* values than that of the control group (P < 0.05). Compared with rearing indoors, outdoor access significantly increased the shear force of the breast muscle in both the 35 d and 70-d group (P < 0.05) and decreased the fat content of the thigh muscle in the case of 35-d group (P < 0.05). Birds in the 35-d group also had lower fat content in their thigh muscles than did the birds in the 70-d group (P < 0.05). The thigh muscles of the birds in the 35-d group showed lower levels of MUFA and higher levels of PUFA than those of the control group and 70-d group (P < 0.05). In conclusion, outdoor access had no effect on growth performance and yield traits but could improve the meat quality; birds reared with outdoor access from 36 d of age had better appearance and meat quality than those with outdoor access from 71 d of age.

引用

页码：435 / 443

页数：9

共 37 条

[1]

[Anonymous], 1994, OFFICIAL METHODS ANA, V15th

[2] Effect of selection for improved body weight and composition on muscle and meat characteristics in Muscovy duck [J].

Baeza, E ;

Dessay, C ;

Wacrenier, N ;

Marche, G ;

Listrat, A .

BRITISH POULTRY SCIENCE, 2002, 43 (04) :560-568

[3] Farm animal welfare research in interaction with society [J].

Blokhuis, HJ ;

Ekkel, ED ;

Korte, SM ;

Hopster, H ;

van Reenen, CG .

VETERINARY QUARTERLY, 2000, 22 (04) :217-222

[4]

Bogosavljevic-Boskovic S, 2010, AFR J BIOTECHNOL, V9, P9069

[5] Effect of genotype and rearing system on chicken behavior and muscle fiber characteristics [J].

Branciari, R. ;

Mugnai, C. ;

Mammoli, R. ;

Miraglia, D. ;

Ranucci, D. ;

Dal Bosco, A. ;

Castellini, C. .

JOURNAL OF ANIMAL SCIENCE, 2009, 87 (12) :4109-4117

[6] Qualitative attributes and consumer perception of organic and free-range poultry meat [J].

Castellini, C. ;

Berri, C. ;

Le Bihan-Duval, E. ;

Martino, G. .

WORLDS POULTRY SCIENCE JOURNAL, 2008, 64 (04) :500-512

[7]

Castellini C, 2002, ITAL J FOOD SCI, V14, P401

[8] Effect of organic production system on broiler carcass and meat quality [J].

Castellini, C ;

Mugnai, C ;

Dal Bosco, A .

MEAT SCIENCE, 2002, 60 (03) :219-225

[9] Development of breast muscle and meat quality in Arbor Acres broilers, Jingxing 100 crossbred chickens and Beijing fatty chickens [J].

Chen, X. D. ;

Ma, Q. G. ;

Tang, M. Y. ;

Ji, C. .

MEAT SCIENCE, 2007, 77 (02) :220-227

[10] Drip loss sampling in porcine m. longissimus dorsi [J].

Christensen, LB .

MEAT SCIENCE, 2003, 63 (04) :469-477

← 1 2 3 4 →