Results 131 to 140 of about 15,741 (238)

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 welfare of broiler breeders

Animal Welfare, 1999
In August 1998, the UK's Farm Animal Welfare Council (FAWC) published its most recent report: addressing the welfare of broiler breeders. Some 780 million broiler chicks are produced annually in the UK and at any one time the national population of broiler breeder hens that produce these chicks is about 6 million.
openaire   +1 more source

Lysine: Amino acid requirements of broiler breeders

Poultry Science, 1998
Because feed intake is controlled in broiler breeders, amino acid supply is determined by the composition of the feed and the level of feed intake. Controlling amino acid supply during the laying cycle can be facilitated by the use of a model for calculating requirements. A possible model is outlined and the various components discussed.
openaire   +2 more sources

Targeting frustration: a review on reducing abnormal behaviors in broiler breeders via environmental enrichment

Frontiers in Ethology
Broiler breeders are an essential component of broiler production, yet their welfare is compromised due to current management practices like feed restriction and housing conditions.
Marcela A. Quino, Bethany Baker-Cook, Bethany Baker-Cook   +2 more
doaj   +1 more source

Constraints on developing organic poultry production OF0128T [PDF]

, 1997
This study aimed to provide MAFF with an assessment of the potential for organic poultry production in England and Wales and, in particular, to identify likely constraints on the development of organic poultry production enterprises, including physical ...
Fowler, Sue, Lampkin, Nicolas, Langstaff, Lesley, McDougall, Iain, O'Regan, Tony, Padel, Susanne, Rajah, Kanes, Sharples, Trevor   +7 more
core  

Broiler Breeder Egg Shape

Poultry Science, 1980
F.H. BENOFF, J.A. RENDEN
openaire   +1 more source

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

Applications of biotechnology in the poultry industry [PDF]

, 2002
Burt, Dave
core   +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

Reducing Campylobacter colonization in broilers by active immunization of naive broiler breeders using a bacterin and subunit vaccine. [PDF]

Poult Sci, 2023
Haems K, Van Rysselberghe N, Goossens E, Strubbe D, Rasschaert G, Martel A, Pasmans F, Garmyn A.   +7 more
europepmc   +1 more source