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Feeding management strategy for male broiler breeders and its effects on body weight, hatchability and fertility Rev. Bras. Ciênc. Avic.
Silveira,MM; Freitas,AG de; Moraes,CA; Gomes,FS; Litz,FH; Martins,JMS; Fagundes,NS; Fernandes,EA.
The objective of the present study was to evaluate the supply of a specific-male diet on rooster body weight, hatchability, and fertility. Two diets were supplied during the egg production period: treatment 1, diet formulated for females and containing, in average, 2,830 kcal ME/kg and 15% CP; and treatment 2, diet specifically formulated for male broiler breeders, containing 2,750 kcal ME/kg and 13.5% CP. In the experiment, 26 flocks, with approximately 7,000 females and 840 males each, belonging to the same broiler breeder commercial strain, were distributed into 26 houses (1200m²) on the same farm, and submitted to the same management practices. Body weight was evaluated in 13 flocks per treatment and for five weeks (45, 50, 55, 60, 65), and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrition; Poultry; Reproductive performance.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400009
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Productive and Economic Performance of Broiler Chickens Subjected to Different Nutritional Plans Rev. Bras. Ciênc. Avic.
Martins,JMS; Carvalho,CMC; Litz,FH; Silveira,MM; Moraes,CA; Silva,MCA; Fagundes,NS; Fernandes,EA.
ABSTRACT The objective of the study was to evaluate the effect of nutritional plans on the productive and economic performance of Hubbard Flex broiler chickens. A completely randomized experimental design was applied, consisting of five treatments. Treatments consisted of five different nutritional plans: a basal diet containing the nutrient and energy levels recommended by literature and designated reference diet; two diets containing 1.5% and 3% lower levels than the reference diet; and two diets containing 1.5% and 3% higher levels than the reference diet (-3%, -1.5%, reference plan, +1.5% and +3%). Feed intake (FI), body weight (BW), feed conversion rate (FCR), livability (L) and productive efficient index (PEI) were determined when broilers were 42...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrient density; Performance; Carcass yield; Economic viability.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200209
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Effect of Sorghum Based Nutritional Programs on Performance, Carcass Yield and Composition of Breast in Broilers Rev. Bras. Ciênc. Avic.
Silveira,MM; Martins,JMS; Litz,F; Carvalho,CMC; Moraes,CA; Silva,MCA; Fernandes,EA.
ABSTRACT An experiment was conducted to compare three nutritional programs, which were developed with tannin-free grain sorghum based diets, evaluating performance, carcass yield and bromatological composition of the pectoral muscle of broilers. A total 1360 chicks mixed (50:50), from one to 42 days old Hubbard Flex Broilers, were housed in a completely randomized design consisting of treatments and 10 replicates each, distributed as follows: three programs with whole sorghum grain based diets (nutritional program with daily adjustment, nutritional program with every three days adjustment and nutritional program with four stages and a program with ground and whole sorghum grain based feed (four stages). The cumulative performance was evaluated at, 21 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bromatological; Carcass quality; Performance; Sorghum bicolor.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500043
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