高温环境下两种日本鹌鹑（日本鹌鹑）剩余采食量及其相关指标的评估
Assessment of Residual Feed Intake and Its Relevant Measurements in Two Varieties of Japanese Quails (Coturnixcoturnix japonica) under High Environmental Temperature.
作者信息
Fathi Moataz M, Al-Homidan Ibrahim, Ebeid Tarek A, Galal Ahmed, Abou-Emera Osama K
机构信息
Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim 51452, Saudi Arabia.
Department of Poultry Production, Faculty of Agriculture, Ain Shams University, HadayekShoubra 11241, Cairo, Egypt.
出版信息
Animals (Basel). 2019 May 30;9(6):299. doi: 10.3390/ani9060299.
Three hundred and ten 12-week-old laying Japanese quails ( ) from gray and white varieties (155 each) were randomly selected from the initial population and kept in individual battery cages. The measurements of growth and egg production were determined to derive residual feed intake (RFI). The relationship between RFI and egg quality, blood parameters, and carcass characteristics was also determined. The results indicated that the gray quails had significantly higher egg mass and lower broken eggs compared to the white quails. A significant increase of eggshell strength and shell percentage was found in eggs produced from gray quails compared to their white counterparts, although their shell thickness means weresimilar. The results of multiple regression analysis clearly identified a significant effect of metabolic body weight and egg mass for the computation of expected feed intake, rather than body weight gain, in both varieties of Japanese quails. A strong positive correlation between RFI and feed intake in both gray and white quail varieties was found. The same trend was also observed for feed conversion ratio (FCR). Therefore, including RFI in the selection criteria of Japanese quails in order to improve FCR under high environmental temperature is highly recommended.
从初始种群中随机挑选出310只12周龄的日本产蛋鹌鹑（灰色和白色品种各155只），并将它们饲养在单独的笼中。测定生长和产蛋量以得出剩余采食量（RFI）。还确定了RFI与蛋品质、血液参数和胴体特征之间的关系。结果表明，与白色鹌鹑相比，灰色鹌鹑的蛋重显著更高，破蛋率更低。与白色鹌鹑所产的蛋相比，灰色鹌鹑所产蛋的蛋壳强度和蛋壳百分比显著增加，尽管它们的蛋壳厚度平均值相似。多元回归分析结果清楚地表明，在两种日本鹌鹑品种中，代谢体重和蛋重对预期采食量的计算有显著影响，而不是体重增加。在灰色和白色鹌鹑品种中，RFI与采食量之间均发现有很强的正相关。饲料转化率（FCR）也观察到相同趋势。因此，强烈建议在高温环境下将RFI纳入日本鹌鹑的选择标准中，以提高饲料转化率。
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