Effect of the genetic strain and age of breeder hens on the productive performance of broilers

José Arce Menocal; Carlos López Coello; Ernesto Ávila González

2003, Number 1

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Vet Mex 2003; 34 (1)

Effect of the genetic strain and age of breeder hens on the productive performance of broilers

Arce MJ, López CC, Ávila GE

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Language: English/Spanish
References: 18
Page: 97-102
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ABSTRACT

An experiment was conducted to evaluate the performance of broiler offspring from two genetic strains at two ages of the breeder hens. Two thousand and eight hundred mixed one-day-old chicks (1 400 from each strain) were raised to their 53rd day of age. A completely randomized design in a 2 × 2 factorial arrangement was used with two hen breeder strains (Avian Farm × Cobb and Cobb × Cobb) at two ages of the breeders (45 and 57 weeks of age) with 7 replicates of 100 birds for each treatment. Results obtained indicate no interaction between hen breeder strain × breeder age (P › 0.05) for any of the variables evaluated. Data obtained in the progeny of different strains indicated no significant differences (P ‹ 0.05) in body weight, feed consumption, feed conversion and total mortality. Chick progeny from different broiler breeder ages showed better results (P ‹ 0.01) regarding body weight (2 395 vs 2 343 g) and feed conversion (2.18 vs 2.22) from older broiler breeders (57 weeks) but without differences (P › 0.05) in feed consumption and total mortality. It is concluded that chicks of older broiler breeders showed better performance on day 53 of age regarding body weight and feed conversion independently of the broiler strain.

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