Anthony N B, Emmerson D A, Nestor K E, Bacon W L, Siegel P B, Dunnington E A
Department of Poultry Science, Ohio State University, Wooster 44691.
Poult Sci. 1991 Jan;70(1):13-9. doi: 10.3382/ps.0700013.
The pattern of growth from hatch to sexual maturity was measured in quail, chicken, and turkey females using the Gompertz equation. Quails and chickens were selected for high or low immature BW and turkeys were selected for high BW. Quail and turkey species also included their respective randombred control populations. The chicken species included an F2 of the selected lines. Thus, there were considerable differences in BW not only among species but between lines within species. Differences were evident at hatch as hatch weights relative to asymptotic BW were greater for quail than chickens and turkeys. Age and BW traits associated with point of inflection (POI) were variable. Species differences appeared to be influenced by the selection scheme applied to the populations. Slope at POI was greatest in quail and the same for turkeys and chickens. Age at 90% of the asymptotic BW was generally greatest for chickens, intermediate for turkeys and lowest for quails. Selection age in relation to age at POI may contribute to the timing and magnitude of growth response observed.
使用冈珀茨方程测量了鹌鹑、鸡和火鸡雌性从孵化到性成熟的生长模式。鹌鹑和鸡根据未成熟体重的高低进行选择，火鸡则根据高体重进行选择。鹌鹑和火鸡品种还包括各自的随机繁殖对照群体。鸡品种包括所选品系的F2代。因此，不仅物种之间，而且物种内品系之间的体重都存在显著差异。孵化时差异明显，因为相对于渐近体重，鹌鹑的孵化体重比鸡和火鸡更大。与拐点（POI）相关的年龄和体重特征各不相同。物种差异似乎受到应用于群体的选择方案的影响。拐点处的斜率在鹌鹑中最大，火鸡和鸡相同。达到渐近体重90%时的年龄通常鸡最大，火鸡居中，鹌鹑最小。相对于拐点年龄的选择年龄可能有助于观察到的生长反应的时间和幅度。
