Effects of Broiler Breeders  Age on Egg Quality Characteristics and Their Correlation Coefficients

Manyeula, Freddy; Sebolai, Boingotlo; Sempule, Godiraone; Moreki, John Cassius

doi:10.36380/jwpr.2021.44

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“…In correlation with flock age, egg weight has a curvilinear function that achieves a plateau near the conclusion of the laying cycle ( Nangsuay et al, 2011 ). Hatching eggs from old breeders contain different components that can alter the embryonic death rate and, in turn, the hatching percentage ( Peebles et al, 2001 ; Tumová and Gous, 2012 ; Manyeula et al, 2021 ). In order to minimize gas exchange and moisture loss, which can impair early embryonic development and lower subsequent hatching rates, breeders begin the laying process by producing eggs with thick shells, few pores, and dense albumen ( Araujo et al, 2017 ).…”

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confidence: 99%

Breeder age and hatching egg storage duration: effects on post-hatch performance of FUNAAB- α broiler chickens

Oke,

Alo,

Oni

et al. 2024

Translational Animal Science

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This trial was designed to evaluate the influence of hatching egg storage length and broiler breeder hens’ age on posthatch growth performance and physiological responses of FUNAAB-α chickens. Five hundred fertile eggs from each of 60 and 32 weeks old FUNAAB-α breeder hens were collected and assigned to 5 storage durations (0, 3, 7, 11 and 15 days). The hatching eggs were incubated using the conventional protocol. Data were collected on the growth performance and physiological responses. A 2x5 factorial design was used for the experiment. The results revealed that there was a decline in the final body weight in chickens from eggs of 15 and 11 days storage compared to the chickens from 7, 3 and 0 egg storage days. Chickens of 32 weeks old breeder hens had higher (p<0.05) mean corpuscular volume, white blood cell, heterophil and pack cell volume values compared to 60 weeks old breeder hens. Hatchlings from 60 weeks old breeders had a higher liver percentage (3.0% YFBW) than those from 32 weeks old breeders (2.8% YFBW). It was concluded that an extended storage duration of 15 days adversely affected the carcass traits and growth performance of chickens from egg storage above seven days.

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