Results 51 to 60 of about 15,944 (241)

Copper requirements of broiler breeder hens

Poultry Science, 2018
One-hundred-twenty Cobb 500 hens, 20 wk of age, were randomly allocated into individual cages with the objective of estimating Cu requirements. After being fed a Cu deficient diet for 4 wk, hens were fed diets with graded increments of supplemental Cu (0.0; 3.5; 7.0; 10.5; 14; and 17.5 ppm) from Cu sulfate (CuSO4 5H2O), totaling 2.67; 5.82; 9.38; 12.92;
E, Berwanger, S L, Vieira, C R, Angel, L, Kindlein, A N, Mayer, M A, Ebbing, M, Lopes   +6 more
openaire   +2 more sources

Reduction of Ribonucleotide Reductase Subunit RRM2 Potentially Impairs Gut Function of Woody Breast Broilers

Animal Research and One Health, EarlyView.
Woody breast compromises meat quality leading to reduced consumer appeal. Although its causes are unclear, improvements observed with certain dietary supplements suggest that gut health may influence woody breast development. Ribonucleotide reductase subunit RRM2 is vital for mitochondrial function and gastrointestinal integrity, and alteration in its ...
Majid Shakeri, Elizabeth Ziabtchenko, Janghan Choi, Caitlin E. Harris, Richard J. Buhr, Trevor R. Mitchell, Byungwhi Kong, Hong Zhuang, Brian Bowker   +8 more
wiley   +1 more source

Zinc requirements of broiler breeder hens

Poultry Science, 2019
One hundred and twenty Cobb 500 hens, 20 wk of age, were randomly allocated into individual cages with the objective of estimating their Zn requirements. The study was composed of 3 phases: adaptation to cages (basal diet), depletion (deficient diet containing 18.7 ± 0.47 ppm Zn) for 7 wk, and experimental phases.
A N, Mayer, S L, Vieira, E, Berwanger, C R, Angel, L, Kindlein, I, França, T L, Noetzold   +6 more
openaire   +2 more sources

Broiler breeder paradox: a project report [PDF]

World's Poultry Science Journal, 2006
A first product of this European project was a tool for scoring chick quality. A link was established between chick quality and embryonic physiological parameters such as heat production. Eggs from broiler breeders that give rise to rapidly growing broilers have a different embryonic development that may need modified incubation conditions.
Decuypere, Eddy, Hocking, P.M., Tona, Kokou, Onagbesan, O., Bruggeman, V., Jones, E.K.M., Skiba-Cassy, Sandrine, Rideau, Nicole, Metayer-Coustard, Sonia, Jégo, Yves, Puterflam, Julie, Tesseraud, Sophie, Collin, Anne, Duclos, Michel Jacques, M.J., Trevidy, J.J., Williams, John   +15 more
openaire   +3 more sources

Fasting and Refeeding Mediated Phospholipid Remodeling Plays an Important Role in Improving Meat Quality of Aged Laying Hens

Animal Research and One Health, EarlyView.
ABSTRACT This study explored fasting‐induced physiological remodeling effects on meat quality in aged laying hens. Fasting for 15 days (F15) significantly reduced abdominal fat, intermuscular fat width, subcutaneous fat thickness, and liver index versus pre‐fasting (F0) (p < 0.05), which recovered post‐refeeding.
Xiaoran Zhang, Jun Zhang, Yadong Tian, Donghua Li, Yanhua Zhang, Lujie Zhang, Yujie Gong, Xiangtao Kang, Ruirui Jiang   +8 more
wiley   +1 more source

Design of Stocking Density of Broilers for Closed House in Wet Tropical Climates [PDF]

, 2014
The objectives of this research were to: 1) design the stocking density of broiler reared at a closed house system in wet tropical climates based on the heat released by broiler, 2) design broiler harvesting system based on the housing heat load, and 3 ...
Erizal, E. (Erizal), Purwanto, B. P. (B), Suhardiyanto, H. (H), Yani, A. (A)   +3 more
core  

The Vitamin D3 Requirement of Broiler Breeders

Poultry Science, 2006
An experiment was conducted with 25- to 66-wk-old Ross broiler breeders in an environment excluding ultraviolet light to determine the cholecalciferol (D3) requirements for hen day egg production; hatchability; body weight of the progeny at 1 d; embryo mortality during the early (1 to 10 d of incubation), middle (11 to 15 d of incubation), and late ...
A, Atencio, H M, Edwards, G M, Pesti, G O, Ware   +3 more
openaire   +2 more sources

The Role of miRNAs in Chicken Immune Regulation and Prospects for Disease‐Resistant Breeding

Animal Research and One Health, EarlyView.
A schematic workflow illustrating the screening of disease‐resistant miRNAs and the generation of miRNA‐based disease‐resistant chickens via PGC‐mediated germline genome editing. ABSTRACT MicroRNAs (miRNAs) are emerging as pivotal regulators of the immune system, playing a decisive role in shaping disease resistance in chicken.
Qiangzhou Wang, Weiran Wu, Qingqing Cai, Jiaxing Wang, Qi Gao, Muhammad Iftikhar, Yulin Bi, Hao Bai, Lihong Gu, Guobin Chang, Shihao Chen   +10 more
wiley   +1 more source

Data mining as a hatchery process evaluation tool

Scientia Agricola, 2019
The hatchery is one of the most important segments of the poultry chain, and generates an abundance of data, which, when analyzed, allow for identifying critical points of the process .
Daniela Regina Klein, Marcos Martinez do Vale, Mariana Fernandes Ribas da Silva, Micheli Faccin Kuhn, Tatiane Branco, Mauricio Portella dos Santos   +5 more
doaj   +1 more source

Assessment of broiler chicken welfare in Southern Brazil [PDF]

, 2016
Scientific literature on broiler chicken welfare in Brazilian industrial systems is scarce. This study aimed at assessing broiler chicken welfare on industrial farms in the State of Rio Grande do Sul, Southern Brazil, using the Welfare Quality (R ...
Federici, JF, Molento, CFM, Sans, ECO, Souza, APO, Tuyttens, Frank, Vanderhasselt, Roselien   +5 more
core   +3 more sources