Exercise profile and effect on growth traits, carcass yield, meat quality, and tibial strength in Chinese Wannan chickens

Wang, Zhicheng; He, Xu; Zhao, Yanjie; Yin, Wang; Wang, Jiangxian; Guo, Xing; Jiang, Runshen

doi:10.1016/j.psj.2020.11.044

Cited by 8 publications

(8 citation statements)

References 26 publications

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“…Data suggest in the research setting, BMD and BMC outcomes were not significantly altered by enrichment. These data are in contrast to findings by Wang et al (2021), who reported that birds exhibiting increased exercise had improved tibial strength, but is in agreement with enrichment work by Pedersen et al (2020), where broilers that walked more to access resources did not have improved tibia strength. Also in agreement with our results, a lack of significance in tibia outcomes was observed in free-range hens with reported increased exercise by Kolakshyapati et al (2019).…”

Section: Discussionsupporting

confidence: 71%

Laser Enrichment Device Stimulates Broiler Laser-Following Behavior While Increasing Individual Bird Locomotion and Pen-Wide Movement

2021

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Genetic selection for fast growth rate and high breast muscle yield in modern broilers has unintended effects on animal welfare and behavior, namely in terms of inactivity and leg disorders. We hypothesized that exercise stimulated through environmental enrichment could positively stimulate pen-wide activity and improve bird welfare. The study objectives were to implement a laser enrichment device to motivate active and feeding behaviors throughout the pen. Twelve hundred Ross 708 broilers were randomly assigned to enrichment (LASER; laser enrichment, or CON; no laser enrichment) for 49 d. Seventy focal birds were randomly assigned to 14 video-recorded pens for behavioral analysis, including focal bird home pen behavior and walking distance. Pen-wide activity was also measured during the 4-min laser periods, four times daily, d0–8, and 1 day weekly, wk 1–6. Focal birds were gait scored wk 1–6, and were euthanized on d42 for tibia bone mineral content, density, and bone breaking strength analysis. Time spent active was increased in LASER-enriched birds compared to CON on wk 3–5 by up to 214% (wk 4), and percent of time at the feeder was increased in LASER-enriched birds by 761% on wk 4 (P < 0.05). Peak percent of birds following the laser (LASER-enriched pens only) was observed on d0 (8.52%). Over wk 1–6, peak laser-following behavior was observed on wk 3 (3.07% of birds). Percent of birds moving during laser periods was increased in LASER-enriched pens on d0, 1, 2, 6, 7, and 8, with a percent increase of 68.7% observed on d1 (P < 0.05). Percent of birds moving (laser-following or not) was increased on wk 1, 3, and 4 in LASER-enriched pens, with an increase of 69.7% observed on wk 4 (P < 0.05). No differences were found in tibia measures. These data indicate that laser enrichment stimulated voluntary locomotion through wk 5 and laser-following behavior through wk 6, and that the relatively small percent of birds actively following the laser stimulated pen-wide movement above the level of the CON through wk 4 on study.

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Section: Discussionsupporting

confidence: 71%

Laser Enrichment Device Stimulates Broiler Laser-Following Behavior While Increasing Individual Bird Locomotion and Pen-Wide Movement

2021

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“…Ducks raised in CRS have a lower chance of exposure to faeces and are in better health, which is conducive to promoting feed intake and growth (Liu et al 2011). Furthermore, compared with CRS ducks, NRS and FRS ducks have more opportunities and space to peck, walk, run, and exhibit natural behaviours for physical exercise, which increases energy consumption, and in turn affects BW (Starčević et al 2021;Wang et al 2021a). In addition, free-range systems are subject to many inherent and uncontrollable factors (Pettersson et al 2016), and they can cause a stress reaction and harm the growth performance of the poultry.…”

Section: Discussionmentioning

confidence: 99%

“…Meanwhile, a sample of the right breast muscle was collected for drip loss and intramuscular fat assays. The cooking loss and drip loss values were measured as previously described (Wang et al 2021a). The pH, meat colour and shear force were determined using a PHB-4 pH meter (Scientific Instruments, Shanghai, China), a tristimulus colorimeter (CR-410; Konica Minolta, Investment, Shanghai, China) and a digital texture analyser (C-LM3; Northeast Agricultural University, Harbin, China), respectively, following the methods of Wang et al (2021a).…”

Section: Carcass Traits and Meat Qualitymentioning

confidence: 99%

“…The cooking loss and drip loss values were measured as previously described (Wang et al 2021a). The pH, meat colour and shear force were determined using a PHB-4 pH meter (Scientific Instruments, Shanghai, China), a tristimulus colorimeter (CR-410; Konica Minolta, Investment, Shanghai, China) and a digital texture analyser (C-LM3; Northeast Agricultural University, Harbin, China), respectively, following the methods of Wang et al (2021a). For intramuscular fat measurements, samples were dried at 65°C, pulverised and examined using the Soxhlet method with diethyl ether as the extraction solvent.…”

Section: Carcass Traits and Meat Qualitymentioning

confidence: 99%

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Effects of different rearing systems on growth performance, carcass traits, meat quality and serum biochemical parameters in Gaoyou ducks

et al. 2023

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The rearing system is a critical non-genetic factor that can considerably affect poultry production. Aims. This study examined the effects of floor rearing systems (FRS), net rearing systems and cage rearing systems (CRS) on growth performance, carcass traits, meat quality and serum biochemical parameters of Gaoyou ducks. Methods. A total of 450 healthy 22-day-old male Gaoyou ducks with similar average bodyweight were randomly divided into the FRS, net rearing systems and CRS groups. The experiment lasted from 22 to 84 days of age. Key results. CRS ducks had a higher final bodyweight, average daily feed intake and average daily gain, and a lower feed-to-gain ratio P < 0.05). FRS ducks had higher breast and gizzard yields and shear force, and lower drip loss and abdominal fat content (P < 0.05). Moreover, FRS ducks had significantly lower glucose, total protein and triglyceride, and higher high-density lipoprotein cholesterol levels (P < 0.05). Conclusions. CRS was beneficial to the growth performance of Gaoyou ducks, whereas FRS was beneficial to carcass traits, meat quality and some serum biochemical parameters. Implications. The results indicated that the CRS and FRS had their own advantages. Thus, an appropriate rearing system should be selected according to the production target and market demand.

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“…Interestingly, enhanced exercise decreases the shear force of breast muscles in broiler chicks[ 6 ]. Breast muscles of chinese indigenous chickens in the highest daily step count group showed a lower shear force value of the breast muscles and higher breaking strength of the tibia than those in the lowest daily step count group[ 7 ]. Therefore, exercises such as walking and running may improve wooden breast myopathy and leg weakness in broiler chicks.…”

Section: Introductionmentioning

confidence: 99%

Periodic and Local LED Light Switching Induces Broiler Locomotion

Kusuda,

Oshima,

Saneyasu

et al. 2024

J. Poult. Sci.

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Wooden breast myopathy and leg weakness are serious problems in the broiler chicken industry. The color and intensity of light in the chicken habitat affect behavior, including walking of chicks. The present study was conducted to determine whether periodic and local light switching induces locomotion and affects wooden breast myopathy and leg weakness in broiler chicks. Thirty five-day-old broiler chicks were assigned to two pens (4.72 m × 0.73 m each). In the control pen, chicks were reared under three white-light emitting diode (LED) lights until they were 42 days old. In the other pen, chicks were reared under a white LED light located in the center, supplemented with blue or red LED lights on either side of the pen. The color of the LED lights changed every 3 h, from blue and red to red and blue. From 21 d of age, all LED lights were changed and only one of the side lights was turned on every 3 h. From 35 d of age, all three white lights were turned on until 42 d of age. Periodic and local color switching and on-off switching significantly induced locomotion in broiler chicks. Wooden breast scores tended to improve with light-switching treatment. The tibia length, diameter, and breaking strength were not significantly affected. This is the first report showing that locomotion may be induced in broiler chicks by periodic and local lighting switching, and may be useful for improving the health status of broiler chicks.

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Exercise profile and effect on growth traits, carcass yield, meat quality, and tibial strength in Chinese Wannan chickens

Cited by 8 publications

References 26 publications

Laser Enrichment Device Stimulates Broiler Laser-Following Behavior While Increasing Individual Bird Locomotion and Pen-Wide Movement

Laser Enrichment Device Stimulates Broiler Laser-Following Behavior While Increasing Individual Bird Locomotion and Pen-Wide Movement

Effects of different rearing systems on growth performance, carcass traits, meat quality and serum biochemical parameters in Gaoyou ducks

Periodic and Local LED Light Switching Induces Broiler Locomotion

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