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Your search keyword '"A.K. Fireman"' showing total 3 results
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3 results on '"A.K. Fireman"'

1. Zinc, manganese, and copper amino acid complexes improve performance and bone characteristics of layer-type chicks under thermoneutral and cold stress conditions

Author

W.R.L. Medeiros-Ventura, C.B.V. Rabello, M.R. Barros, R.V. Silva Junior, H.B. Oliveira, A.G. Faria, A.F. Silva, P.C. Soares, C.G. Pereira, M.J.B. Santos, and A.K. Fireman

Subjects
Lohmann layer-type chick, trace mineral, phosphorus, sustainability, Animal culture, SF1-1100
Abstract

Two experiments were designed to evaluate the effect of mineral-amino acid complexes (AACM) as a partial replacement of inorganic mineral (IM) in layer-type chicks' diets. Both studies had the same dietary treatments, where in experiment 1 (Exp. 1) was conducted under thermoneutral conditions from 0 to 35 D and chicks in experiment 2 (Exp. 2) were exposed to cold stress conditions at nighttime during the first 15 D and to thermoneutral condition from 16 to 35 D. For each trial, 1,200 one-day-old Lohmann Brown chicks were used, with 20 cage replicates with 30 chicks per cage. Treatments consisted of the control diet (IM; with 70, 70, and 8 mg/kg of zinc [Zn], manganese [Mn], and copper [Cu], respectively) and the treatment diet (AACM, with 40, 40, and 2.75 mg/kg of Zn, Mn, and Cu, respectively, from IM sources, along with 30, 30, and 5.25 mg/kg of Zn, Mn, and Cu, respectively). Data were submitted to analysis of variance, and means were compared using the t-test (P

Published
2020
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2. An investigation on iron sources fed to broiler breeder hens and the corresponding color of laid eggshells on the performance of the resulting progeny

Author

E. Berwanger, A.N. Mayer, C. Stefanello, A.K. Fireman, Sergio Luiz Vieira, D.D. Maria, and M.A. Ebbing

Subjects
0301 basic medicine, Dietary iron, genetic structures, medicine.diagnostic_test, Hatching, 0402 animal and dairy science, 04 agricultural and veterinary sciences, Broiler breeder, Hematocrit, Biology, 040201 dairy & animal science, Ferrous, 03 medical and health sciences, 030104 developmental biology, Breeder (animal), Animal science, medicine, Animal Science and Zoology, Eggshell
Abstract

SUMMARY A study was conducted to evaluate the effects of dietary iron (Fe) from inorganic and organic sources on breeder hen chicks originated from Pale and Dark eggs. A total of 640 40-wk-old Cobb 500 broiler breeder hens were randomly distributed into 32 floor pens (20 females and 2 males per pen) and fed ferrous sulfate (Fe-S) at 40 ppm Fe; Fe-amino acid complex (Fe-AA) at 40 ppm Fe, or Fe-S and Fe-AA (Fe-S + Fe-AA) at 90 ppm Fe, 50 ppm provided by Fe-S and 40 ppm by Fe-AA. Breeder performance was evaluated from 40 to 67 wk, and laid eggs were separated by color (Pale and Dark) to compose 6 treatments. A total of 600 hatching eggs from each treatment were collected at 65 wk and incubated. Hemoglobin and hematocrit were analyzed from 100 hatched chicks per treatment. In parallel, 1,200 1-day-old male chicks were randomly distributed in a 3 × 2 (Fe fed to hens and eggshell color) factorial arrangement (48 floor pens; 25 birds/pen) and fed common diets. Hens fed the Fe-AA diet produced more eggs per hen housed and had higher fertility compared to hens fed Fe-S whdereas those fed Fe-S + Fe-AA had intermediate results. Chick hemoglobin and hematocrit were not affected by dietary Fe and eggshell color. Breeder hens fed diets with Fe-AA and Dark eggs originated broilers that had improved growth performance and carcass and breast weights.

Published
2019
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3. Broiler responses to increasing selenium supplementation using Zn-L-selenomethionine with special attention to breast myopathies

Author

Tamara Zinn Ferreira, Sergio Luiz Vieira, A.K. Fireman, H. S. Cemin, C. Stefanello, and Liris Kindlein

Subjects
0301 basic medicine, Male, chemistry.chemical_element, Biology, Pectoralis Muscles, L-Selenomethionine, 03 medical and health sciences, Random Allocation, Selenium, Animal science, Muscular Diseases, Animals, Selenomethionine, Poultry Diseases, 0402 animal and dairy science, Broiler, 04 agricultural and veterinary sciences, General Medicine, 040201 dairy & animal science, Animal Feed, Diet, Zinc, 030104 developmental biology, chemistry, Dietary Supplements, Animal Science and Zoology, Chickens
Abstract

A study was conducted to evaluate growth performance, carcass and breast yields, and the occurrence and severity of white striping (WS) and wooden breast (WB) myopathies of broilers fed diets supplemented with increasing dietary levels of an organic source of selenium (Zn-L-SeMet). Broilers were fed 6 treatments with 12 replications of 26 birds in a 4-phase feeding program from 1 to 42 days. Corn-soy-based diets were supplemented with 0, 0.2, 0.4, 0.6, 0.8, and 1.0 ppm of Zn-L-SeMet. At 42 d, 6 birds were randomly selected from each pen (n = 72) and processed for carcass and breast yields. Breast fillets were scored for WS and WB at 42 days. Increasing Zn-L-SeMet led to quadratic responses (P

Published
2016

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