Results 41 to 50 of about 5,790 (232)

Efeito da classificação dos ovos sobre o rendimento de incubação e os pesos do pinto e do saco vitelino Effect of egg classification prior to setting on hatchability, embryonic mortality and chick and yolk sac weights

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Dois experimentos foram realizados para avaliar, no primeiro, o efeito da idade da matriz sobre a uniformidade do peso de 1080 ovos e gemas e, no segundo, a influência da classificação de 9260 ovos sobre a eclodibilidade, a mortalidade embrionária e os ...
J.S.R. Rocha, L.J.C. Lara, N.C. Baião, S.V. Cançado, L.E.C. Baião, T.R. Silva   +5 more
doaj   +1 more source

Development of a multivalent adjuvanted inactivated vaccine against variant arthrotropic avian reoviruses

Frontiers in Veterinary Science, 2023
Variant avian reoviruses (ARVs) are economically important emerging pathogens of poultry, which mainly affect young broiler chickens and cause significant production losses.
Lisanework E. Ayalew, Shelly Popowich, Betty Chow-Lockerbie, Hemlata Gautam, Iresha Subhasinghe, Khawaja Ashfaque Ahmed, Suresh K. Tikoo, Davor Ojkic, Susantha Gomis   +8 more
doaj   +1 more source

SERO-EPIDEMIOLOGICAL STUDY OF CHRONIC RESPIRATORY DISEASE IN CHICKEN FLOCKS IN SYRIA [PDF]

Assiut Veterinary Medical Journal, 2015
It was collected 2990 blood samples from various ages of chicken of broiler, layer and breeder flocks distributed from different regions of SAR, in order to detect Mycoplasma galisepticum that used in Rapid sero- agglutination test and indirect ELISA ...
EYAD ALNAJJAR, MOHAMMAD ALI EL-EMADI, YASER ALOMAR   +2 more
doaj   +1 more source

Restricting Growth of Broiler Breeder Pullets

Poultry Science, 1969
Abstract Restricting rate of gain and delaying sexual maturity of pullets are important considerations in producing a profitable broiler breeder flock. Most of the existing programs for rearing broiler pullets are based on some type of feed restriction, or the use of diets designed to limit nutrient intake starting around 8 to 10 weeks of age ...
J D, Summers, W F, Pepper, E T, Moran
openaire   +2 more sources

Evaluation of a Product Intended for Microbiological Control in Animal Production, and Its Combination With Halquinol

Animal Research and One Health, EarlyView.
Activo Liquid and Halquinol inhibit Salmonella and Escherichia coli in culture media. Activo Liquid exhibits bactericidal action, whereas HA is bacteriostatic, and their combination results in positive or indifferent interactions. This combination effectively inhibits E. coli throughout digestion simulation, thus reducing the required concentrations of
Alberto Gonçalves Evangelista, Lucas dos Santos Janotto, Adriana Paula Possamai, Carolina Cini Perry, Francine Lemes Ribeiro, Rafael Canonenco de Araujo, Fernando Bittencourt Luciano   +6 more
wiley   +1 more source

A study of association between genetic markers in candidate genes and reproductive traits in one generation of a commercial broiler breeder hen population [PDF]

, 2004
Markers of alleles for three physiological candidate genes for reproductive traits, growth hormone (GHR), gonadotropin-releasing hormone receptor (GNRHR) and neuropeptide Y (NPY) were assessed for the association with the total egg production, number of ...
I C Dunn, A Morris, M N Romanov, Dunn, I C, Morris, A, Y W Miao, Romanov, Michael N, Wilson, P W, Waddington, David, D Waddington, Miao, Yi-Wei, P W Wilson   +11 more
core   +1 more source

Broiler growth and efficiency in response to relaxed maternal feed restriction

Poultry Science, 2021
Broiler growth performance can be influenced by maternal BW, maternal age, and sex. The present study evaluated broiler growth and efficiency in response to increased maternal BW (relaxed level of maternal feed restriction).
N.M. Zukiwsky, M. Afrouziyeh, F.E. Robinson, M.J. Zuidhof   +3 more
doaj   +1 more source

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

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

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