A comparative study on the TBILI, DBILI, BUN of hybrid snakehead and its parents was con- ducted by Automatic Biochemical Analyzer. The results based on statistical analysis showed that the TBILI of hybrid snakehead was not significantly different from femail parent Channa maculata, while was signifi- cantly different from male parent Channa argus(P < 0.05), but the DBILI and BUN of hybrid snakehead were not significantly different from male parent Channa argus, while were significantly different from femail parent Channa maculata(P < 0.05), so it could be inferred that the inherited character of hybrid snakehead is the same with female parent, but is different from male parent refered to TBILI, while the inherited character of hybrid snakehead is the same with male parent, but is different from female parent refered to DBILI and BUN.
Welcome to the WIT Press eLibrary - the home of the Transactions of the Wessex Institute collection, providing on-line access to papers presented at the Institute's prestigious international conferences and from its State-of-the-Art in Science & Engineering publications.
Welcome to the WIT Press eLibrary - the home of the Transactions of the Wessex Institute collection, providing on-line access to papers presented at the Institute's prestigious international conferences and from its State-of-the-Art in Science & Engineering publications.
Dynamic body amino acid (AA) deposition is the prerequisite for development of AA requirement according to factorial method. However, patterns of body AA in yellow-feathered broilers remain largely unknown. This study aims to establish non-linear growth model for dynamic body AA deposition and to identify effects due to gender difference. A total of 840 yellow-feathered broiler chickens at day 1 were equally allotted into 2 gender groups, and were fed for 120-d. Body weight was measured and comparative slaughter method was performed every 10 days. Non-linear regression (NLS) was applied to fit the dynamic body AA deposition, and superior model was chosen for further analysis. Results showed that the Gompertz model was superior. Maximum daily AA deposition (mg/d) reached between day 50~60, and was found in sorting order for male and female broilers that Leu (444 vs. 457), Val (318 vs. 325), Lys (304 vs. 295), Thr (248 vs. 249), Ile (241 vs. 263), Phe (223 vs. 224), Tyr (199 vs. 204), Cys (168 vs. 177), Met (84 vs. 78), Trp (46 vs. 44). To conclude, the Gompertz model was the superior non-linear model to fit dynamic body AA deposition. The inflection of daily deposition rate occurred around day 50~60. Male broilers deposited body AA faster than female except Cys, probably owing to differential feather development. Regardless gender, the AA ratios to Lys (%) for Thr, branched chain AA and aromatic AA increased as broilers grew, while relative Met or Trp to Lys (%) remained. The ratio of Cys: Lys (%) increased in female broilers, but declined in male counterparts during growth. Importantly, The allometric relationship was innovatively applied to interpret dynamics of AA profile, providing powerful tools in future study. In short, this study are the premise to develop factorial AA requirement model in future.
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