Efeitos dos cloretos de potássio e de amônia sobre o desempenho e deposição de gordura na carcaça de frangos de corte criados no verão

Souza, B. P. S.; Bertechini, A. G.; Teixeira, Alexandre O; Lima, Jaf; Pereira, SL; Fassani, Édison José

doi:10.1590/s1516-635x2002000300005

Cited by 6 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Souza et al (2002), the K concentration stimulates the release of growth hormone which inhibits lipogenesis and increases lipolysis, where this impact can explain the yolk weight decrease, since much of its content is composed of lipids. Table 5 -Equations estimated for the egg quality parameters of laying hens…”

Section: Resultsmentioning

confidence: 99%

Electrolyte balance in diets with reduced protein for semi-weighted laying hens in the second production cycle

et al. 2012

View full text Add to dashboard Cite

-The objective was to evaluate the effect of electrolyte balance in diets with reduced protein for semiweighted Bovans Goldline laying hens in the second production cycle. The design was completely randomized with five treatments and seven replicates of six birds per experimental unit. Treatment 1 consisted of a control diet containing 165.0 g/kg crude protein (CP), formulated with the addition of DL-methionine to meet birds requirements during the experimental period. To compose the treatments 2-5 (BE149, BE167, BE185 and BE203), a basal diet with reduced protein (135.0 g/kg CP) supplemented with synthetic amino acids DL-methionine, L-lysine, L-threonine, L-valine and L-tryptophan was formulated. This basal diet was supplemented with potassium carbonate, to replace the inert, so as to provide four levels of potassium (5.86, 6.56, 7.26 and 7.96 g/kg) corresponding to the electrolyte balance of 171, 149, 167, 185 and 203 meq/kg, respectively. There was increased linear effect for feed intake and decreasing linear effect for albumen weight and yolk percentage and quadratic effect for conversion per dozen and per egg mass. Crude protein is recommended at 135.0g/kg with 6.77 g/kg potassium and electrolyte balance of 172.51meq/kg in the diet of semi-weighted laying hens in the second production cycle.

show abstract

Section: Resultsmentioning

confidence: 99%

Electrolyte balance in diets with reduced protein for semi-weighted laying hens in the second production cycle

et al. 2012

View full text Add to dashboard Cite

show abstract

“…According to Souza (2002), the K concentration stimulates the release of the growth hormone, which inhibits the lipogenesis and increases the lipolysis, reducing the carrying of fat to the yolk; this may justify the decrease in weight, since much of its content is formed by lipids.…”

Section: Resultsmentioning

confidence: 99%

Nutritional potassium requirement for laying Japanese quails

et al. 2011

View full text Add to dashboard Cite

-The objective of this study was to evaluate the potassium requirement for laying Japanese quails. Two hundred and forty quails were distributed in a randomized block design, with five treatments and six replicates, with eight birds each. The treatments consisted of a basal diet deficient in potassium (K) (2.50 g/kg), supplemented with potassium carbonate, to replace the inert, to reach levels of 2.50, 3.50, 4.50, 5.50 and 6.50 (g/kg) of K in the diet. There was a quadratic effect of K levels on feed intake, egg production, egg mass and feed conversion per egg mass and per egg dozen, estimating the requirements of 4.26, 4.41, 4.38, 4.43 and 4.48 (g/kg) of K diet, respectively. There was no significant effect on the levels of K in the diet on egg weight, albumen weight, percentage of yolk or shell and yolk color. However, yolk and shell weights reduced and the albumen percentage increased linearly with increasing levels of K in the diet. Despite the reduction of shell weight, the increased levels of K did not influence the specific gravity and shell thickness. The use of 4.41 g/kg of potassium is recommended in the diet for laying Japanese quails.

show abstract

Efeito do nível energético e da suplementação com cloretos de potássio e de amônia na dieta sobre as respostas fisiológicas e o desempenho de frangos de corte no verão

et al. 2005

View full text Add to dashboard Cite

Realizou-se este estudo com o objetivo de verificar o efeito do nível energético da ração e da suplementação com cloretos de potássio e de amônia na dieta de frangos de corte no verão. Foram utilizados 240 frangos machos, Hubbard, com peso médio inicial de 1204 g, distribuídos num delineamento inteiramente casualizado, em esquema fatorial 2 x 3 x 2, 2 níveis de KCl (0,0% e 1,2%) x 3 níveis de NH4Cl (0,0%, 0,2% e 0,4%) x 2 níveis de energia (3000 e 3200 Kcal EM/kg de ração), com 4 repetições de 5 aves por repetição. O índice de temperatura do globo negro e umidade (ITGU), observado às 9 horas e 15 horas foi de 76 e 83, respectivamente. Houve interação (P<0,01) do KCl com NH4Cl para a temperatura superficial. O nível energético da ração afetou (P<0,01) a temperatura superficial no turno da tarde. Para a temperatura retal, freqüência respiratória, pH do sangue e o desempenho não se verificou efeito (P>0,05) dos fatores estudados. A ingestão de água aumentou (P<0,05) com a adição de KCl. Para a conversão alimentar houve melhora (P<0,05) com a elevação do nível energético e piora (P<0,05) com o nível mais elevado de cloreto de amônia. Houve interação (P<0,05) entre o KCl e o nível energético da ração para o consumo de ração. Concluiu-se que, nas condições deste experimento, os fatores estudados não afetam a temperatura retal, freqüência respiratória, pH sanguíneo nem o desempenho de frangos de corte. Porém, a conversão alimentar melhora com a elevação do nível energético da ração e piora com a adição de cloreto de amônia à dieta em nível alto.

show abstract

Efeitos dos cloretos de potássio e de amônia sobre o desempenho e deposição de gordura na carcaça de frangos de corte criados no verão

Cited by 6 publications

References 18 publications

Electrolyte balance in diets with reduced protein for semi-weighted laying hens in the second production cycle

Electrolyte balance in diets with reduced protein for semi-weighted laying hens in the second production cycle

Nutritional potassium requirement for laying Japanese quails

Efeito do nível energético e da suplementação com cloretos de potássio e de amônia na dieta sobre as respostas fisiológicas e o desempenho de frangos de corte no verão

Contact Info

Product

Resources

About