期刊
ANIMAL NUTRITION
卷 1, 期 2, 页码 77-84出版社
KEAI PUBLISHING LTD
DOI: 10.1016/j.aninu.2015.05.004
关键词
Young grass carp (Ctenopharyngodon idella); Phosphorus; Growth; Flesh quality; Antioxidant enzyme
资金
- National Department Public Benefit Research Foundation (Agriculture) of China [201003020]
- Science and Technology Support Programme of Sichuan Province of China [2011NZ0071]
- Major Scientific and Technological Achievement Transformation Project of Sichuan Province of China [2012NC0007]
Growth, muscle composition, meat quality characteristics and antioxidant capacity in muscle of young grass carp (Ctenopharyngodon idella) (initial weight 282.9 +/- 3.3 g) fed graded levels of phosphorus (1.0, 2.5, 3.8, 5.6, 7.8 and 9.5 g/kg diet) for 8 wk were investigated. Results indicated that percentage weight gain, feed intake, feed efficiency, serum phosphorus and alkaline phosphatase were improved with optimal phosphorus supplementations (P < 0.05). Muscle protein content and water holding capacity were significantly elevated, while moisture, lipid and ash contents were significantly decreased with dietary phosphorus to a certain level (P < 0.05). The meat shear force value and hydroxyproline content were not influenced by different levels of phosphorus. Muscle anti-hydroxyl radical, superoxide dismutase, catalase, glutathione S-transferase activities and glutathione content were significantly improved (P < 0.05). Conversely, anti-superoxide anion, glutathione reducase and glutathione peroxidase activities were decreased (P < 0.05) with dietary phosphorus to a certain level. These results indicated that suitable dietary phosphorus improved growth performance, meat quality and muscle antioxidant capacity. Dietary available phosphorus requirement of young grass carp for percentage weight gain was 4.0 g/kg diet. (C) 2015, Chinese Association of Animal Science and Veterinary Medicine. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
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