Results 11 to 20 of about 15,741 (238)
Effects of different selenium sources and levels on antioxidant status in broiler breeders [PDF]
Asian-Australasian Journal of Animal Sciences, 2018 Objective This study was conducted with the objectives to examine the impacts of inorganic selenium (Se) and different types and levels of organic selenium on the serum and tissues Se status and antioxidant capacity in broiler breeders.
K. X. Li +5 more
doaj +1 more source
Gut capacity of broiler breeder hens
British Poultry Science, 2021 1. Broiler breeders are subjected to qualitative or quantitative feed restrictions to prevent obesity, which causes major health and welfare problems. Diluting their feed by adding inert or low nutrient, bulky materials can reduce obesity, but the capacity of the gut needs to be determined to apply this strategy successfully.
Nascimento, M. Q. +6 more
openaire +4 more sources
Carcass Characteristics, Digestive System Traits of Spent Broiler Breeder and Dual-Purpose Hens
Animals, 2022 Raising dual-purpose hens for meat is believed to bring more economic benefits to farmers selling products directly to consumers. The aim of the study was to determine the differences between the carcass features and the digestive system of multipurpose ...
Karol Włodarczyk +3 more
doaj +1 more source
Assessing the occurrence and transfer dynamics of ESBL/pAmpC-producing Escherichia coli across the broiler production pyramid [PDF]
, 2019 Extended-spectrum \u3b2-lactamase (ESBL)- and plasmid mediated AmpC-type cephalosporinase (pAmpC)-producing Escherichia coli (ESBL/pAmpC E. coli) in food-producing animals is a major public health concern.
APOSTOLAKOS, ILIAS +3 more
core +1 more source
Leptin receptor in the chicken ovary: potential involvement in ovarian dysfunction of ad libitum-fed broiler breeder hens [PDF]
, 2004 In hens, the ovarian follicles committed to ovulation are arranged in an ordered follicular hierarchy. In standard broiler breeders hens genetically selected for high growth rate the reproductive function is clearly dysfunctional.
Cassy, Sandrine +5 more
core +3 more sources
Poultry, 2023 Avian pathogenic Escherichia coli (APEC) causes colibacillosis in poultry, a leading cause of poultry mortality worldwide. It is crucial to control APEC in broiler breeders as it is vertically transferred to progeny via eggs.
Jiddu Joseph +5 more
doaj +1 more source
Testicular growth and comb and wattles development in three Italian chicken genotypes reared under free range conditions [PDF]
, 2015 Male chickens belonging to three Italian purebreds \u2013 Ermellinata di Rovigo (ER), Robusta lionata (RL) and Robusta maculata (RM) \u2013 were studied. All the birds were reared under the same rearing conditions (from May until autumn).
DE FASSI NEGRELLI RIZZI, Chiara +1 more
core +1 more source
Water Usage of Broiler Breeders
Poultry Science, 1989 Water usage of daily fed and skip-a-day-fed broiler pullets housed in cages was measured in two trials. Daily fed birds in both trials had free access to water. In Trial 1, skip-a-day-fed birds were restricted to 4 h water every day or only on feed days. In Trial 2, the skip-a-day-fed birds were water restricted 4 h either every day, only on feed days,
C D, Bennett, S, Leeson
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Sodium Chloride for Broiler Breeders
Poultry Science, 1983 Two experiments, each of 224 days duration, were conducted with Cobb broiler breeders, 32 weeks of age, to determine their response to supplemental dietary sodium chloride levels ranging from .12 to .48% in a corn-soybean meal diet. Average hen-day egg production, daily feed intake, feed required per dozen eggs, and egg specific gravity were not ...
B L, Damron, H R, Wilson, R H, Harms
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Brazilian Archives of Biology and Technology, 2011 The aim of this work was to evaluate the effect of broiler breeders' age and yeast wall (YW) levels on broilers' performance and macrophage activitys. The experiment consisted in a completely randomized design and a 2 X 5 factorial arrangement and two ...
Suelen Regina Ferreira +4 more
doaj +1 more source