Article (Scientific journals)
Dietary 25-hydroxy-cholecalciferol and additional vitamin E improve bone development and antioxidant capacity in high-density stocking broilers.
Xiao, Chuanpi; Zhu, Qijiang; Comer, Luke et al.
2023In Journal of Animal Science, 101
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Keywords :
25-hydroxy-cholecalciferol; broiler; oxidative stress; stocking density; vitamin E; Calcifediol; Antioxidants; Vitamin E; Vitamins; Cholecalciferol; Animals; Vitamin E/pharmacology; Diet/veterinary; Dietary Supplements; Vitamins/pharmacology; Bone Development; Animal Feed/analysis; Calcifediol/pharmacology; Chickens/physiology; Genetics; Animal Science and Zoology; General Medicine; Food Science
Abstract :
[en] This study aimed to investigate the effects of diets supplemented with 25-hydroxycholecalciferol [25-(OH)D3] and additional vitamin E on growth performance, antioxidant capacity, bone development, and carcass characteristics at different stocking densities on commercial broiler farms. A total of 118,800 one-day-old Arbor Acres broilers were assigned to a 2 × 2 factorial treatment consisting of two dietary vitamin levels (5,500 IU vitamin D3 and 60 IU vitamin E: normal diet, using half 25-(OH)D3 as a source of vitamin D3 and an additional 60 IU of vitamin E: 25-(OH)D3+VE diet) and two stocking densities (high density of 20 chickens/m2: HD and 16 chickens/m2: LD). The experiment lasted for 42 d. The results showed that high-density stocking negatively affected the growth performance of broilers during the first four weeks, whereas the vitamin diet treatment significantly improved the feed conversion ratios (FCR) during the last 2 wk. Vitamin diets increased catalase at 14 and 42 d, and the glutathione peroxidase (GSH-px) levels at 42 d in high-density-stocked broilers. The interaction showed that serum vitamin E levels were significantly improved at 28 d of age in high-density-stocked broilers as a result of the vitamin diets. Stocking density and dietary treatments were found to significantly affect bone development, with the vitamin diet significantly increasing metatarsal length and femoral bone strength in broilers from high-density stocking density at 28 d of age. High stocking density increased the proportion of leg muscles and meat yield per square meter. In general, 25-(OH)D3 and additional vitamin E suppressed oxidative stress and ameliorated the negative effects of high-density stocking on bone development in a commercial chicken farm setting. Vitamin diets improved the FCR of broilers, while high-density stocking resulted in better economic outcomes.
[en] High-density stocking is often associated with animal welfare risks in broilers, mainly in terms of oxidative stress and bone development. Nevertheless, farming at too low a density remains for the most part economically unviable. Modulation of antioxidant capacity and bone development by nutritional strategies in high-density-farmed broilers has proven an effective tool in developing countries. Therefore, the present study investigated the effects of applying diets with a higher biological potency of vitamin D3 25-hydroxycholecalciferol [25-(OH)D3] and a higher concentration of vitamin E on broiler production performance, antioxidant capacity and meat production performance at different densities of stocking under commercial farming conditions. The results indicated that the vitamin dietary treatments suppressed oxidative stress and ameliorated the negative effects of high-density farming on bone development.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Xiao, Chuanpi  ;  Université de Liège - ULiège > TERRA Research Centre ; Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Zhu, Qijiang;  Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Comer, Luke;  Nutrition and Animal Microbiota Ecosystems lab, Department of Biosystems, KU Leuven, Leuven 3000, Belgium
Pan, Xue;  Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Everaert, Nadia ;  Université de Liège - ULiège > TERRA Research Centre > Animal Sciences (AS) ; Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Schroyen, Martine  ;  Université de Liège - ULiège > Département GxABT > Animal Sciences (AS)
Song, Bochen;  Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Song, Zhigang;  Key Laboratory of Efficient Utilization of Non-grain Feed Resources, Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271000. China
Language :
English
Title :
Dietary 25-hydroxy-cholecalciferol and additional vitamin E improve bone development and antioxidant capacity in high-density stocking broilers.
Publication date :
03 January 2023
Journal title :
Journal of Animal Science
ISSN :
0021-8812
eISSN :
1525-3163
Publisher :
Oxford University Press (OUP), United States
Volume :
101
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 April 2024

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