Impact of restricting feed and probiotic supplementation on growth performance, mortality and carcass traits of meat‐type quails

Animal Science Journal - Tập 90 Số 10 - Trang 1388-1395 - 2019
Rab Nawaz Soomro1,2, Mohamed E. Abd El‐Hack3, Syed Sajjad A. Shah1, Ayman E. Taha4, Mahmoud Alagawany3, Ayman A. Swelum5,6, Elsayed O. S. Hussein5, Hani A. Ba‐Aawdh5, Islam M. Saadeldin7, M. A. El-Edel8, Vincenzo Tufarelli9
1Department of Poultry Husbandry, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, Pakistan
2Northwest A & F University Yangling Shaanxi Province Yangling P. R. China
3Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
4Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Rasheed, Edfina, Egypt
5Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
6Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
7Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
8Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
9Department of DETO, University of Bari 'Aldo Moro', Section of Veterinary Science and Animal Production, Valenzano, Bari, Italy

Tóm tắt

AbstractThe objective of this study was to evaluate the effects of quantitative feed restriction, along with dietary supplementation with a probiotic blend (Protexin) as a natural growth promoter, on the performance, water consumption, mortality rate and carcass traits of meat‐type quails. A total of 250 1‐day unsexed quails were randomly allocated to five equal groups in a completely randomized design. The first group (A) fed a basal diet without any restriction (24 hr/day); the second group (B1) fed the basal diet for 20 hr/day; the third group (B2) fed the basal diet enriched with probiotic (0.1 g/kg diet) for 20 hr/day; the fourth group (C1) fed the basal diet for 16 hr/day; and the fifth group (C2) fed the basal diet enriched with probiotic (0.1 g/kg diet) for 16 hr/day. Birds were fed ad‐libitum from 0–14 days of age, and then the feed restriction regimes started from 14 till 28 days of age. Results showed that quails in the control‐group consumed more feed and water than the other treatment groups (p < .01), however their body weights did not differ (p > .05) compared with the other treated groups. The best feed conversion values were achieved in quails supplemented with probiotic blend (B2 and C2) in comparison with the other groups (p < .01). Feeding probiotic had a positive effect on bird health which reduced the mortality rate. Further, mortality rate was significantly reduced (p < .05) by feed restriction, with or without probiotic supplementation. No carcass parameters were significantly affected (p > .05) by treatments. Our results show that quail could be reared under a feed restriction system, for 4–8 hr daily, along with dietary supplementation of probiotic as growth promoter for better growth performance.

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Thông tin xuất bản

Animal Science Journal

Tập 90 Số 10

1388-1395

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