2013
DOI: 10.1590/s1516-635x2013000200013
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Abstract: An experiment was carried out to evaluate the effects of different nutritional strategies on nitrogen (N), phosphorus (P) and calcium (Ca) balance and on copper (Cu), manganese (Mn) and zinc (Zn) excretion in broilers during the periods of 1 to 21 days and 1 to 46 days of age. Four hundred male Cobb-500 broilers were used. A randomized block experimental design was applied, including five treatments with eight replicates of 10 birds each. A five-phase feeding program was adopted (1-8, 9-21, 22-33, 34-40 and 41… Show more

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Cited by 7 publications
(6 citation statements)
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“…A brief search of the literature about phosphorus metabolism of birds indicates a wide range of its excretion [30,31] Although cranes are not typical water fowls due to their day-night stay discrimination between terrestrial and aquatic habitats, they are not the only Lake Agmon inhabitants. Among other inhabitants are ducks, herons, pelicans, cormorants, mallards, and seagulls [32].…”
Section: Discussionmentioning
confidence: 99%
“…A brief search of the literature about phosphorus metabolism of birds indicates a wide range of its excretion [30,31] Although cranes are not typical water fowls due to their day-night stay discrimination between terrestrial and aquatic habitats, they are not the only Lake Agmon inhabitants. Among other inhabitants are ducks, herons, pelicans, cormorants, mallards, and seagulls [32].…”
Section: Discussionmentioning
confidence: 99%
“…Similar to this observation, feeding HWM up to 7.5% for quails did not affect the digestibility of dry matter and crude protein (Sari, 2016). Grana et al (2013) observed broiler chickens fed different protein levels concluded, that increasing nitrogen intake was associated with increasing nitrogen excretion, thus, the protein retention was not affected.…”
Section: Nutrient Retentionmentioning
confidence: 97%
“…The gross energy of diet and excreta was measured with bomb calorimeter. Nutrient retention (g/bird) was calculated as nutrient intake minus nutrient excreted (Grana et al, 2013). The apparent metabolizable energy (AME, kcal/kg) was calculated as gross energy of feed minus gross energy excreta of the birds (Robbins and Firman, 2006), while calcium utilization was calculated according to Indreswari et al (2009):…”
Section: Animal and Dietsmentioning
confidence: 99%
“…Nutrient retention (g/bird) was calculated as nutrient intake (g/bird) minus nutrient excretion (g/bird). Nutrient retention (%) indicates the percentage of nutrient retained by the bird as a function of nutrient intake (Graña et al, 2013) and it was calculated as follows:…”
Section: Determination Of Nitrogen (N) Calcium (Ca) and Phosphorus (P) Retention Efficiencymentioning
confidence: 99%