Diferentes fontes de proteína na dieta pré-inicial de frangos de corte

Longo, Flávio Alves; Menten, José Fernando Machado; Pedroso, Adriana Ayres; Figueiredo, Adriana Nogueira; Racanicci, Aline Mondini Calil; Gaiotto, Juliano Benedito; Sorbara, J. O. B.

doi:10.1590/s1516-35982005000100015

Cited by 21 publications

(11 citation statements)

References 11 publications

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“…No differences in organ weight and intestine height was observed, differing from the results obtained by Xavier et al (2004) and Longo et al (2005) with protein sources at different levels, but, in these experiments only one source was compared at lower levels of inclusion compared to the authors cited above.…”

Section: Resultscontrasting

confidence: 75%

“…Xavier et al (2004) observed that the use of ingredients of animal origin in pre-starter diet did not affect performance of broiler chicks from 1 to 21 days of age, but pancreas weight increased at 21 days of age. In the experiments performed by Longo et al (2005), performance of chicks in pre-starter ration was not affected by the protein source fed, but this effect did not persist in the subsequent raising period. Rations containing these ingredients, when formulated based on ideal protein concept, result in better broiler performance (Cancherini et al, 2004;Bellaver et al, 2005).…”

Section: Introductionmentioning

confidence: 88%

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Feather and blood meal in pre-starter and starter diets for broilers

Xavier¹,

Stringhini

Brito³

et al. 2011

R. Bras. Zootec.

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-Two experiments were carried out (pre-starter and starter phases) to evaluate the effect of feather and blood meal on performance, organ development and digestibility and retention of nutrients in broilers. In the first experiment, it was used 280 birds and in experiment 2, it was used 240 birds. The experimental diets were formulated with four levels of feather and blood meal (0%, 2%, 4% and 6%) all of them isonutritive and isoenergetic. A metabolic assay was developed on the 4 th and 7 th days of age in experiment 1 and on the 14 th and 17 th days of age in experiment 2. In these periods, one bird per experimental unit was sacrificed for determination of morphometry of the digestive organs. In experiment 1, in which it was evaluated the pre-starter phase, there was a negative linear effect of the levels of feather and blood meal on weight gain and intake in 1-21 day of age period. By using feather and blood meal in the diet, it was observed a linear effect on digestibility coefficient of dry matter, nitrogen and ether extract; there was a quadratic effect on retention of dry matter and nitrogen and linear effect on the retention of ether extract. However, performance of birds in the starter phase (experiment 2) was not affected by levels of feather and blood meal used in the diet. Coefficient of digestibility of dry matter and ether extract and retention of ether extract were affected. In both phases, mortality and morphometric data of digestive organs were not influenced by the levels of meal in the diet. Formulation of diets with up to 6% feather and blood meal for chickens in the pre-starter phase (from 1 to 7 days) is not a good alternative because it worsens performance of birds. However, from the initial phase (from 8 to 21 days), the use of feather and blood meal in the diet is viable. Feather and blood meal can be used at levels 3.0 or 4.0% for broilers in the pre-starter and starter phase.

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Section: Resultscontrasting

confidence: 75%

Section: Introductionmentioning

confidence: 88%

Feather and blood meal in pre-starter and starter diets for broilers

Xavier¹,

Stringhini

Brito³

et al. 2011

R. Bras. Zootec.

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“…Possivelmente, a Tabela 1 -Porcentagem de mortalidade de embriões nos tratamentos com inoculação de ácido linoléico (experimento 1) de Ferket et al (2005b). Ipek et al (2004), ao inocularem baixos níveis de glicose (5, 10 e 15 mg), não observaram aumento na mortalidade embrionária nem melhora no desempenho dos pintos, entretanto, os baixos níveis de glicose não contribuiriam como suplemento energético para a ave. A partir dos dados reportados por Longo et al (2005), verificou-se que os níveis de 100, 200 e 300 mg de glicose fornecem respectivamente 0,34, 0,69 e 1,02 kcal de EM, quantidade insuficiente para o processo de rompimento das membranas interna e externa da casca do ovo.…”

Section: Resultsunclassified

Inoculação de nutrientes em ovos de matrizes pesadas

et al. 2006

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RESUMO -Foram conduzidos três experimentos para avaliar a influência da inoculação in ovo de ácido linoléico, glicose e glutamina em ovos de matrizes pesadas aos 16 dias de incubação sobre a eclodibilidade e o desempenho dos pintos até 10 dias de idade. O delineamento utilizado foi em blocos ao acaso, com cinco tratamentos, que consistiram da inoculação dos ovos, conforme descrito a seguir: experimento 1 -0, 100, 200 ou 300 µL de ácido linoléico; experimento 2 -0, 100, 200 ou 300 mg de glicose; experimento 3 -0, 10, 20 ou 30 mg de glutamina. Em todos os experimentos, o grupo controle foi representado por ovos íntegros não inoculados. Na fase pré-eclosão, cada um dos 130 ovos representou uma unidade experimental e, na fase pós-eclosão, cada tratamento contou com quatro repetições de 15 aves. A inoculação de ácido linoléico ou glicose aumentou a mortalidade embrionária, diminuiu a eclodibilidade dos ovos e prejudicou a relação peso do pinto:peso do ovo. Pintos mais leves foram obtidos com a inoculação in ovo de diferentes níveis de ácido linoléico. A inoculação in ovo com ácido linoléico, glicose e glutamina nas concentrações testadas não se mostrou adequada para melhorar características relacionadas à eclodibilidade e ao desempenho de aves até os 10 dias de idade.Palavras-chave: ácido linoléico, desempenho, eclodibilidade, glicose, glutamina, órgãos digestórios Nutrient inoculation in eggs from heavy breedersABSTRACT -Three experiments were carried out to evaluate the effects of in ovo inoculat ion of linoleic acid, glucose, and glutamine in chick eggs at 16 th day of incubation on hatchability and performance until 10 days of age. It was used a randomized block design with five treatments, as follows: in experiment 1, 0, 100, 200 or 300 µL of linoleic acid; in experiment 2, 0, 100, 200 or 300 mg of glucose; and in experiment 3, 0, 10, 20 or 30 mg of glutamine. The control was represented by the intact eggs in all experiments. In the pre hatch phase, each one of 130 eggs represented an experimental unit, and in post hatch phase each treatment had four replicates with 15 chicks each. The inoculation of linoleic acid or glucose increased embryo mortality and decreased hatchability and chick weight:egg weight ratio. In ovo inoculation of linoleic acid resulted in lighter chicks. In ovo inoculation of linoleic acid, glucose, and glutamine at different concentrations did not improve bird hatchability and performance until 10 days of age.Key Words: digestory organs, glucose, glutamine, hatchability, linoleic acid, performance IntroduçãoO rápido acesso do pinto ao alimento pode melhorar o desempenho por estimular as enzimas digestivas e o maior desenvolvimento das vilosidades intestinais (Geyra et al., 2001). Uni (2001) demonstrou que, quanto mais cedo a ave é alimentada, maior o desenvolvimento inicial do trato digestório e, portanto, melhor o peso vivo. O acesso do embrião a nutrientes pode melhorar o desenvolvimento do sistema digestório Smirnov et al., 2004), a eclodibilidade e o desempenho do frango. Com base nesta...

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“…Conforme Ton et al (2011), a carência ou o desbalanceamento entre os nutrientes pode reduzir a síntese proteica. Longo et al (2005), contudo, não verificaram efeito de fontes de carboidratos (milho, amido de mandioca, glúten de milho, plasma sanguíneo e sacarose) sobre o rendimento de coxa e sobrecoxa de frangos de corte abatidos aos 42 dias de idade.…”

Section: Resultsunclassified

Caldo de cana desidratado na ração de codornas de corte

Santos

Teixeira

Souza

et al. 2016

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito do caldo de cana desidratado (CCD) no desempenho, na qualidade de carcaça e no índice econômico de codornas (Coturnix coturnix) europeias, no período de 22 a 42 dias de idade. Foram utilizadas 192 codornas de corte com 22 dias de idade, distribuídas em delineamento inteiramente casualizado, com quatro tratamentos e seis repetições de oito aves. Foram adicionados 0, 1,5, 3,0 e 4,5% de CCD na ração. Avaliou-se a viabilidade econômica da inclusão dos níveis de CCD nas rações por meio da margem bruta relativa das dietas. No período de 29 a 35 dias de idade, houve efeito linear crescente para o consumo de ração com o aumento de CCD na ração. No entanto, houve efeito quadrático dos níveis de CCD sobre o peso da carcaça, da coxa+sobrecoxa e da gordura abdominal, e os níveis ótimos estimados foram de 1,69, 2,50 e 2,34%, respectivamente. Houve efeito linear decrescente dos níveis de CCD sobre o peso de peito com e sem pele. A análise econômica indicou maior lucro ao produtor com uso da ração convencional. Entretanto, entre os níveis de inclusão de CCD, o de 1,5% apresentou os melhores resultados, com uma diferença de 0,47% na margem de lucro em relação à ração convencional. A adição de 1,69 e 2,50% de caldo de cana desidratado na ração é recomendada para atingir maior peso de carcaça e coxa+sobrecoxa em codornas de corte, respectivamente.Termos para indexação: Coturnix coturnix, Saccharum officinarum, alimento alternativo, cana-de-açúcar. Dehydrated cane juice in meat quail feedAbstract -The objective of this work was to evaluate the effect of dehydrated cane juice (DCJ) on the performance, carcass quality, and economic index of European quails (Coturnix coturnix), during the period from 22 to 42 days of age. One hundred and ninety-two quails with 22 days of age were distributed in a completely randomized design, with four treatments and six replicates of eight birds each. DCJ was added at 0, 1.5, 3.0, and 4.5% in the feed. The economic feasibility of including DCJ levels in the feed was evaluated through relative gross margin. In the period from 29 to 35 days of age, there was increased linear effect of feed intake with the increase of DCJ in the feed. However, there was a quadratic effect of DCJ levels on carcass, drumstick+thigh, and abdominal fat weights, and the estimated optimum levels were 1.69, 2.50, and 2.34%, respectively. There was a decreasing linear effect of DCJ levels on breast weight with and without skin. Economic analysis showed higher profits to the producer with the use of conventional feed. However, among the DCJ levels of inclusion, the level of 1.5% showed the best results, with a difference of 0.47% in relative gross margin when compared to the conventional feed. The addition of 1.69 and 2.50% of dehydrated cane juice in the feed is recommended to achieve higher carcass and drumstick+thigh weights in meat quails, respectively.

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Diferentes fontes de proteína na dieta pré-inicial de frangos de corte

Cited by 21 publications

References 11 publications

Feather and blood meal in pre-starter and starter diets for broilers

Feather and blood meal in pre-starter and starter diets for broilers

Inoculação de nutrientes em ovos de matrizes pesadas

Caldo de cana desidratado na ração de codornas de corte

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