Results 131 to 140 of about 5,790 (232)

Evaluation of Feeding Programs for Broiler Breeders Hens

, 2001
The experiment was conducted to evaluate the best feeding program post peak egg production for broiler breeders. Cobb broiler breeders (3168 females and 352 males) were distributed in a randomized experimental design with four treatments and eight ...
Argenta, João Artur, De Azevedo Jr., Pedro Cláudio, Sakomura, Nilva Kazue [UNESP]   +2 more
core  

Abrupt or gradual increases in photoperiod for broiler breeders

, 2006
Cobb 500 broiler breeder females (n = 832), which had been raised to achieve a typical 20-week body weight of 2.1 kg, were subjected to an abrupt or gradual increase in photoperiod to determine the effects on reproductive performance. One group (n = 416)
RM Gous, Gous, RM, PD Lewis, Lewis, PD
core   +1 more source

Standard Body Weight and Serum Estradiol and Progesterone Concentrations in Response to Total Lysine Content in Female Broiler Breeders from 14 to 42 Days after Hatch

Brazilian Journal of Poultry Science
This study was conducted to determine the total lysine requirement for female broiler breeders from days 14 to 42. Two-hundred and ten female broiler breeders were used in a completely randomized design with 6 replicates per treatment and 5 chicks per ...
E Kim, HJ Rew, TK Shin, HM Cho, SS Wickramasuriya, YJ Yi, J Jeong, I Choi, JM Heo   +8 more
doaj   +1 more source

The photoperiodic response of male broiler breeders.

, 2010
Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2010.The expression of photorefractoriness, a feature of seasonal breeding in birds, is important in production species, where egg production and fertility are affected by the photoperiod ...
Tyler, Nicola Claire.
core  

Energy utilization and requirement of broiler breeders during the production phase. [PDF]

Poult Sci, 2023
Teofilo GFS, Riveros RL, Leme BB, Camargos RS, Macari M, Fernandes JBK, Sakomura NK.   +6 more
europepmc   +1 more source

Effects of thymol and eugenol supplementation on reproductive performance, egg quality, and offspring health in broiler breeders. [PDF]

Poult Sci
Sun H, Sun P, Zhang X, Hamada O, Kong L, Song Z.   +5 more
europepmc   +1 more source

Embryo dysplasia in obese broiler breeders reduces hatchability: Comparison of high and low abdominal fat lines. [PDF]

Poult Sci
Jiang H, Cheng B, Zhao J, Yang J, Wang S, Su Z, Li Y, Luan P, Leng L, Li H.   +9 more
europepmc   +1 more source

Characterizing mating behaviour in broiler breeders via a vision based deep learning model. [PDF]

Poult Sci
Jaihuni M, Zhao Y, Gan H, Moyle J, Tabler T, Qi H, Zhu X, Hewage SCN.   +7 more
europepmc   +1 more source

First Seroprevalence Survey of Avian Reovirus in Broiler Breeders Chicken Flocks in Morocco. [PDF]

Viruses, 2023
Achhal Elkadmiri A, Zhari A, Aitlaydi N, Bouslikhane M, Fagrach A, Mouahid M, Fellahi S.   +6 more
europepmc   +1 more source

Temporal dynamics of sperm morphology in broiler breeders: Evidence of rapid non-linear patterns of decline. [PDF]

Poult Sci
Witherspoon K, Sambuis F, Okuku T, Cash C, Hammons G, Xu Z, Pohler KG, Athrey G.   +7 more
europepmc   +1 more source