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亚历山大品系及其与法尤米鸡杂交后代的胫长、体重和产蛋性状的杂种优势及表型相关性。

Heterosis and phenotypic correlations for shank length, body weight and egg production traits in the Alexandria strains and their crosses with Fayoumi chickens.

作者信息

Kosba M A

出版信息

Beitr Trop Landwirtsch Veterinarmed. 1978;16(2):187-98.

PMID:728051
Abstract

The performance features of one paternal (PL) and one maternal line (ML) each, their reciprocal crosses and their crosses with a non-selected Fayoumi population are presented. A clear heterosis was found for hatchability only. Shank length, body weight, fertility, sexual maturity and egg weight were intermediate. Heterosis was observed for the number of eggs in the first 90 days of laying for the ML X PL cross. The performance of the PL and ML and of their reciprocal crosses was generally higher than that of the crosses with the non-selected Fayoumis.

摘要

介绍了一个父系（PL）和一个母系（ML）各自的生产性能特征、它们的正反交以及它们与一个未选择的法尤米群体的杂交情况。仅在孵化率方面发现了明显的杂种优势。胫长、体重、受精率、性成熟度和蛋重均处于中间水平。在ML×PL杂交组合产蛋的前90天内，蛋数表现出杂种优势。PL和ML及其正反交组合的性能总体上高于与未选择的法尤米群体的杂交组合。

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