Effect of the Line and Age of Female Broiler Breeder on Hatchability Performance of Eggs

Rebolledo, OFP; López, MFA; Rivera, JAH; Canul, AC; Isaias, GT; Casillas, ACG

doi:10.1590/1806-9061-2022-1639

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Brazilian Journal of Poultry Science

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Original Article • Braz. J. Poult. Sci. 25 (1) • 2023 • https://doi.org/10.1590/1806-9061-2022-1639 copy

Effect of the Line and Age of Female Broiler Breeder on Hatchability Performance of Eggs

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

An experiment was conducted to assess how hatchability performance of eggs is affected by line and age of female broiler breeders. Response variables analyzed were hatchability, infertility, pipping (i.e., pipped shell but not emerged), embryonic mortality (1st, 2nd, and 3rd wk), and embryonic malposition. The trials involved a total of 2,880 fertile eggs from two broiler breeder lines (Ross 308 and Cobb 500) at two different ages (30 and 50 wk). A 2 x 2 factorial design was used, where the broiler breeder line and broiler breeder age were the main effects. The hatchability in the Ross 308 line was higher than the Cobb 500 line, but its infertility was higher than the Ross 308 line. Hatchability in interaction (50 wk age of the hen in the Cobb 500 line) was less, and their infertility was higher. Embryonic mortality, pipping, and embryonic malposition did not present differences for the interaction between factors. The results suggest that hatchability performance of eggs can be improved, if egg management and incubation procedures are adjusted to account for the interaction between broiler breeder line and broiler breeder age.

Keywords:
Broiler breeder line; Broiler breeder age; Hatchability; Embryonic mortality

Factor	Hatchability	Embryonic mortality			Infertility	Pipping³	Embryonic malposition
		1^st wk	2^nd wk	3^rd wk
Breeder age
30 wk	85.34± 3.05^a	5.24 ± 2.51^a	1.36 ± 1.21^a	1.80 ± 1.43^a	4.74 ± 2.24^a	0.90 ± 0.51^a	0.53 ± 0.71^a
50 wk	82.19 ± 4.40^a	4.93 ± 1.33^a	1.60 ± 1.14^a	1.61 ± 0.82^a	6.39 ± 3.33^a	1.25 ± 0.75^a	0.36 ± 0.65^a
p ¹	0.05	0.75	0.67	0.72	0.07	0.23	0.60
EEM²	0.75	0.59	0.03	0.30	0.58	0.20	0.08
Breeder line
Ross 308	85.93± 2.26^a	5.37± 1.79^a	1.16 ± 0.64^a	1.82 ± 0.62^a	3.75 ± 1.74^b	1.24 ^± 0.62^a	0.23 ± 0.25^a
Cobb 500	81.59 ± 4.28^b	4.80± 2.20^a	1.81 ± 1.43^a	1.59 ± 1.47^a	7.39 ± 2.66^a	0.91± 0.67^a	0.65 ± 0.86^a
p ¹	0.01	0.56	0.25	0.64	0.01	0.27	0.20
EEM²	1.35	0.20	0.39	0.42	0.84	0.21	0.27
Interaction
30 wk * Ross 308	87.16±2.14^a	4.93 ± 1.05^a	0.97 ± 0.75^a	1.47 ± 0.46^a	3.99 ± 1.78^b	0.85 ± 0.51^a	0.29 ± 0.20^a
50 wk * Ross 308	84.69±0.83^a,b	5.80 ± 2.27^a	1.35 ± 0.579^a	2.18 ± 0.57^a	3.50 ± 1.88^b	1.63 ± 0.49^a	0.76 ± 0.29^a
30 wk * Cobb 500	83.51±2.78^a,b	4.93 ± 1.65^a	1.76 ± 1.47^a	2.13 ± 1.93^a	5.49 ± 2.54^b	0.95 ± 0.57^a	0.18 ± 0.91^a
50 wk * Cobb 500	79.68 ± 4.93^b	4.67 ± 2.85^a	1.86 ± 1.56^a	1.05 ± 0.63^a	9.28 ± 0.72^a	0.88 ± 0.83^a	0.54 ± 0.88^a
p ¹	0.65	0.57	0.79	0.10	0.02	0.16	0.87
EEM²	0.42	0.45	0.26	0.25	0.66	0.15	0.15

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[1] Corresponding author e-mail address Arturo César García Casillas Doctor of Philosophy (PhD) in Agricultural Sciences - Universidad de Colima Ringgold standard institution - Faculty of Veterinary Medicine and Zootechnics, Tecomán, Avenida Universidad 333, Las Víboras, Colima, Colima, 28040, Mexico. Phone: 313 3229407 Email: cesargarciacasillas@hotmail.com