Níveis de cálcio em dietas para poedeiras semipesadas após o pico de postura

Costa, Fernando Guilherme Perazzo; Oliveira, Cléber Franklin Santos de; Dourado, Leilane Rocha Barros; Neto, Raul da Cunha Lima; Campos, Miguel Ângelo da Silva Fernandes; Lima, Anny Graycy Vasconcelos de Oliveira

doi:10.1590/s1516-35982008000400006

Cited by 10 publications

(10 citation statements)

References 5 publications

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“…The supply of excess mineral can lead to the passage of this nutrient more quickly through the digestive tract without it being absorbed (PELÍCIA, 2008). The results of this study corroborate the findings of Masukawa et al (2001), Pizzolante et al (2007), Costa et al (2008), and Costa (2010). However, Garcia et al (2000) investigated the nutritional requirements of calcium (2.5%, 3.0%, 3.5%, and 4.0%) and phosphorus in 10-week-old Japanese quails and Silva (2011) evaluated calcium levels (2.0%, 2.5%, 3.0%, and 3.5%) and phosphorus in the diet of Japanese quails at different stages of the production cycle, they found that calcium levels influenced the average weight of eggs, with the lowest level of calcium resulting in heaviest eggs.…”

Section: Resultssupporting

confidence: 93%

“…These results were similar to those reported by Costa et al (2008) who tested different levels of calcium (2.5 and 3.2%).…”

Section: Resultssupporting

confidence: 91%

“…This result followed the results observed for the percentage of production in the present study, which was not influenced by increasing levels of dietary calcium. Similar results were found by Costa et al (2008) who evaluated calcium levels (3.0%, 3.4%, 3.8%, 4.2%, 4.6%, and 5.0%) in laying hens after peak production and Barreto et al (2007) evaluated calcium levels (1.6%, 2.0%, 2.4%, 2.8%, 3.2%, and 3.6%) in the diets of 8-24-week-old Japanese quails during production phase.…”

Section: Resultssupporting

confidence: 91%

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Quail performance and egg quality at the end of production fed with varying levels of calcium

Souza

Calixto

Lemos

et al. 2016

SCA

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The goal of the present study was to evaluate the influence of increasing levels of dietary calcium on performance, egg quality, and the amount of calcium retained in the meat and excreted by Japanese quails at the final production. Four hundred 46-58-week-old Japanese quails were distributed in a completely randomized design consisting of five calcium level treatments: T1 = 2.95%, T2 = 3.25%, T3 = 3.55%, T4 = 3.85% and T5 = 4.15% calcium. The performance variables included feed intake (g bird -1day -1 ), egg production (%), feed conversion by egg mass and per dozen eggs, egg mass (g), and viability. For egg quality, we assessed egg weight, percentage of albumen, yolk weight, percentage of shell, and shell thickness. We also evaluated the amount of calcium present in the meat and the amount of calcium excreted by quails. Increasing levels of calcium linearly influenced feed conversion, weight of yolk, and percentage of eggshell. Shell thickness increased up to the 3.85% calcium treatment. Calcium content of the meat differed among the quails; the quails fed the lowest level of calcium (2.95%) showed higher calcium content in meat, whereas calcium excretion increased with increasing levels of calcium in the diet. In conclusion, the addition of 3.85% of calcium in quail feed at the end of production improved eggshell quality, and maintained internal quality and performance within the recommended standards for the production phase tested in quails. Levels higher than 3.85% calcium negatively influenced the parameters analyzed. Key words: Coturnix coturnix japonica. Digestibility. Eggshell thickness. ResumoO objetivo do presente estudo foi avaliar a influência de níveis crescentes de cálcio na dieta sobre o desempenho, a qualidade do ovo, e a quantidade de cálcio retido na carne e excretado por codornas japonesas em final da produção. distribuídas em um delineamento experimental inteiramente casualizado, sendo os tratamentos constituídos de cinco níveis de cálcio: T1 = 2,95%, T2 = 3,25%, T3 = 3,55%, T4 = 3,85% e T5 = 4,15%. As variáveis de desempenho incluíam o consumo de ração (g/ave/dia), produção de ovos (%), conversão alimentar por massa de ovo e por dúzia de ovos, massa de ovo (g), e viabilidade. Para a qualidade dos ovos foram avaliados o peso dos ovos, porcentagem de albúmen, peso da gema, porcentagem de casca e espessura da casca. Também foi avaliada a quantidade de cálcio presente na carne e a quantidade de cálcio excretado pelas codornas. O aumento dos níveis de cálcio influenciou linearmente a conversão alimentar, o peso de gema e a porcentagem de casca de ovo. A espessura da casca aumentou até o nível de inclusão de 3,85% de cálcio. O teor de cálcio da carne diferiu entre as codornas; as codornas alimentadas com o menor nível de cálcio (2,95%) apresentaram maior teor de cálcio na carne, enquanto a excreção de cálcio aumentou com o aumento dos níveis de cálcio na dieta. Em conclusão, a adição de 3,85% de cálcio na alimentação de codornas no final da produção melhorou a qualidade da casca do ovo, e...

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Section: Resultssupporting

confidence: 93%

“…These results were similar to those reported by Costa et al (2008) who tested different levels of calcium (2.5 and 3.2%).…”

Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 91%

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Quail performance and egg quality at the end of production fed with varying levels of calcium

Souza

Calixto

Lemos

et al. 2016

SCA

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“…Costa et al (2008) tested 3.0-5.0% dietary calcium levels and did not find any effects on feed intake. On the other hand, Araújo et al (2011) verified lower feed intake when calcium level was increased from 3.5 to 4.2% in the diet of commercial layers in the post-molting period.…”

Section: Resultsmentioning

confidence: 91%

Effect of different vitamin D sources and calcium levels in the diet of layers in the second laying cycle

Nascimento

Murakami

Guerra

et al. 2014

Rev. Bras. Cienc. Avic.

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This study evaluated the effects of different sources of vitamin D and calcium levels on performance, egg quality and bone strength of hens in the second production cycle. A total of 384 Hy-Line W36 birds with 80 weeks of age were used, alloted into 3 x 4 factorial design (sources of vitamin D: cholecalciferol; 25(OH)D 3 and 1.25(OH) 2 D 3 x calcium levels: 2.85, 3.65; 4.45 and 5.25%) with four replicates and eight birds each. The performance was evaluated for three cycles of 28 days each, egg quality was evaluated in the last four days of each cycle and bone strength on the last day of the experimental period. There was no interaction (p> 0.05) between the different sources of vitamin D and calcium levels in all parameters evaluated. There was a quadratic effect (p<0.05) of calcium levels in egg production and feed conversion (kg/kg and kg/dz), with better results at levels of 4.12%, 4.09% and 4.14%, respectively. Calcium levels had no effect (p> 0.05) in the egg weight and Haugh unit, but there was a linear increase (p <0.05) in the percentage and eggshell thickness, in specific gravity and bone strength. The different sources of vitamin D influenced (p<0.05) the egg production rate, feed conversion, egg weight and Haugh unit. Thus, the results of this study suggest that the recommended calcium level for laying on second cycle is between 4.09% and 4.14% and that the metabolites cholecalciferol and 25(OH)D 3 improved the performance and egg quality. Regarding bone strength was improved as the calcium levels were increased in diets.

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“…In fact, Dudle-Cash, 2012, Figueiredo et al (2012, Costa et al (2008), andJordão Filho et al (2006a), point out that nutritional requirements should be evaluated and constantly renewed, together with the development of strains, since they are more efficient and productive. According to Jardim Filho et al (2008), failure in nutrient supply results in poor quality eggs before impairment in the mobilization of nutrients for the maintenance of the reproductive system and the process of egg formation.…”

Section: Introductionmentioning

confidence: 99%

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

Santos

Geraldo

Machado

et al. 2014

Acta Sci. Anim. Sci.

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ABSTRACT. Egg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 experimental plots. A completely randomized design with six treatments and seven replicates was employed in four production cycles of 28 days each. Treatments comprised Control -16.92% CP; 0.750% digestible lysine. Treatments 1 to 5, with CP levels 14% and digestible lysine levels 0.600, 0.675, 0.750, 0.825 and 0.900% respectively. Levels of Treatments 1 and 2 (0.546 and 0.640% digestible Met + Cys / 0.600 and 0.675% digestible lysine) provided smaller egg size. On the other hand, eggs had higher shell percentage when compared to control diet. When compared to other digestible amino acids, digestible lysine requirement may be estimated at 0.750% in a diet with 14% CP, which corresponds to the average daily intake of 876 mg dig. lysine hen -1 day -1 and 798 mg dig. Met + Cys hen -1 day -1 , without jeopardizing performance and eggs' internal and external quality.Keywords: ideal protein, digestible amino acids, Isa Brown, requirement, diet.Níveis de lisina digestível para poedeiras semipesadas e seus efeitos sobre a qualidade dos ovos RESUMO. A presente pesquisa objetivou avaliar a qualidade dos ovos de poedeiras semipesadas submetidas a dietas com baixa proteína (14,0% PB) e diferentes níveis de lisina, mantendo a mesma relação aminoácidos digestíveis/lisina digestível. Foram utilizadas 420 poedeiras da linhagem comercial Isa Brown, com 28 semanas de idade distribuídas em 42 parcelas experimentais. Foi utilizado um delineamento inteiramente casualizado com seis tratamentos e sete repetições, em quatro ciclos de produção de 28 dias/cada. Os tratamentos foram: Controle -16,92% PB; 0,750% lisina digestível. Tratamentos 1 ao 5, com níveis de PB de 14% e lisina digestível de 0,600; 0,675; 0,750; 0,825 e 0,900%, respectivamente. Os níveis referentes aos tratamentos 1 e 2 (0,546 e 0,640% Met + Cis digestível / 0,600 e 0,675% de lisina digestível) proporcionaram menor tamanho do ovo; em contrapartida os ovos obtiveram maior porcentagem de casca, quando comparados à dieta controle. A exigência de lisina digestível em relação aos demais aminoácidos digestíveis, pode ser estimada em 0,750% em dieta com 14% de PB, o que corresponde ao consumo médio diário de 876 mg lisina dig. ave -1 e 798 mg Met + Cis dig. ave -1 dia -1 , sem comprometer o desempenho e qualidade interna e externa dos ovos.Palavras-chave: proteína ideal, aminoácidos digestíveis, Isa Brown, exigência, dieta.

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Níveis de cálcio em dietas para poedeiras semipesadas após o pico de postura

Cited by 10 publications

References 5 publications

Quail performance and egg quality at the end of production fed with varying levels of calcium

Quail performance and egg quality at the end of production fed with varying levels of calcium

Effect of different vitamin D sources and calcium levels in the diet of layers in the second laying cycle

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

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