Efeito da inclusão de óleo de linhaça nas rações sobre o desempenho e os parâmetros ósseos de frangos de corte

Murakami, Alice Eiko; Garcia, Elis Regina de Moraes; Martins, Elias Nunes; Moreira, Ivan; Scapinello, Cláudio; Oliveira, Andréia Fróes Galuci

doi:10.1590/s1516-35982009000700014

Cited by 9 publications

(8 citation statements)

References 30 publications

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“…When formulating diets for broiler chickens, questions arise about the limits of energy utilisation by the birds, either due to the maximum peak of growth or to a physiological limitation due to the rate of synthesis of enzymes, including those related to lipid digestion (lipase), and the ability to synthesise and recirculate bile acids and salts, especially in young birds (MURAKAMI et al, 2009;UPADHAYA et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Use of emulsifier and lipase in feeds for broiler chickens

Oliveira

Balbino

Silva

et al. 2019

SCA

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The objective of this study was to evaluate the effect of exogenous emulsifier and lipase in diets on performance, digestibility, and organ biometry of broiler chickens. A completely randomised design with seven treatments and seven replications was adopted. The treatments were as follows: T1 (positive control; PC): 3000, 3100, 3200, and 3250 Kcal of metabolisable energy (ME) kg-1 of diet for phases 1 to 10, 11 to 21, 22 to 31, and 32 to 37 days, respectively; T2: PC with reduction in ME of 30 Kcal kg-1 of diet; T3: PC with reduction in ME of 60 Kcal kg-1 of feed; T4 (negative control; NC): PC with reduction in ME of 90 Kcal kg-1 of feed; T5: NC with inclusion of exogenous lipase (10 000 U kg-1); T6: NC with inclusion of emulsifier (250 g t-1); and T7: NC with inclusion of lipase (10 000 U kg-1) and emulsifier (250 g t-1) in the period from 1 to 37 days of rearing. Performance characteristics (weight gain (WG), feed intake (FI), and feed conversion (FC)), carcass yield, cut yield, the relative weight of abdominal fat and organs (small intestine, liver, and pancreas), and relative intestinal length, in addition to dry matter digestibility (CDADM), ethereal extract (CDAEE), crude metabolisable energy (CMACE), and apparent metabolisable energy (AME) of the diets, were evaluated. In the initial phase, the CDAEE was higher for the PC group than for the emulsifier + lipase group. The AME determined in the final phase for the group supplemented with an emulsifier was higher by approximately 50 Kcal (EM) than the NC group. The WG of the lipase group was similar to that of the PC group. However, the groups with emulsifier and emulsifier + lipase showed a lower WG than the PC group. The additives used did not recover the FC to the same level observed in the PC group. The reduction in ME of 90 Kcal kg-1 generated a lower WG and worse FC. The use of both an emulsifier and lipase together produced results like to the PC group. The biometrics of the organs and the carcass yield and cuts were not influenced by diets. Thus, it can be concluded that the inclusion of lipase and an emulsifier improves the performance of broilers given diets with reduced energy, although it does not improve the lipid utilisation of the diets.

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Section: Introductionmentioning

confidence: 99%

Use of emulsifier and lipase in feeds for broiler chickens

Oliveira

Balbino

Silva

et al. 2019

SCA

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“…In addition, fats reduce the food passage rate, and thus they remain longer under the action of the digestive enzymes, thereby increasing the processes of digestion and absorption of nutrients, which has a positive influence on the response of the birds [ 26 ]. Murakami et al [ 27 ] observed a linear increase in weight gain with subsequent improvement in feed conversion in the initial rearing period of broilers fed diets containing increasing levels of linseed oil in the period from 1 to 42 days of age, which is also explained by the extra-caloric value of the fats.…”

Section: Resultsmentioning

confidence: 99%

Cottonseed Oil in Diets for Broilers in the Pre-Starter and Starter Phases

et al. 2016

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The objective of this study was to evaluate the effect of different levels of crude cottonseed oil in isoenergetic diets, with or without supplementation of ferrous sulfate, on performance variables, relative weight of organs, and blood parameters of broilers, and on the economic viability of diets in the periods from 1 to 7 and 1 to 21 days of age. A total of 600 male birds of the Ross line were distributed in a completely randomized design in a (4×2) factorial arrangement with eight treatments (0, 2, 4, and 6% cottonseed oil with and without ferrous sulfate), and five replicates. The following variables were studied: feed intake, weight gain, feed conversion, weight of organs, blood parameters, and yield of carcass and cuts at 21 days. No effects of the levels of cottonseed oil were found on the performance of animals aged 1 to 7 days, or on the relative weights of the organs. In this same period, the weight gain, and the relative weights of heart, liver, and intestine of the animals that received ferrous sulfate were decreased, and feed conversion was worsened. In the period from 1 to 21 days, weight gain increased linearly with the increase in the levels of cottonseed oil. Blood parameters were not influenced by the diets. Crude cottonseed oil can be utilized in diets for broilers in the periods from 1 to 7 and 1 to 21 days of age at up to 6% of inclusion, and supplementation with ferrous sulfate is unnecessary if the differences in metabolization of the cottonseed oil are considered, with and without, it during the diet formulation process.

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“…The Seedor index is a means to measure bone density, where the higher the index, the higher the density of the bone and vice versa (MURAKAMI et al, 2009). The treatments had a positive quadratic effect on the Seedor index: 142.55 was obtained (at 35 days) with 1.53 µg of added active vitamin D 3 per kg of feed, which is the recommended dose to maintain bone quality.…”

Section: Resultsmentioning

confidence: 99%

Características ósseas de frangos de corte alimentados com rações suplementadas com Solanum glaucophyllum

et al. 2016

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<p>O objetivo do trabalho foi avaliar as características dos tibiotarsos de frangos de corte machos aos 21 e 35 dias de idade. Foram determinados os percentuais ósseos de proteínas colagenosas (PC), proteínas não colagenosas (PNC), cinzas e minerais (cálcio, fósforo, potássio e sódio), além dos pesos dos tibiotarsos <em>in natura, </em>secos e desengordurados. Foram utilizados 648 frangos de corte machos da marca comercial Cobb® em um delineamento em blocos ao acaso com seis tratamentos e seis repetições com 18 aves por unidade experimental. Os tratamentos consistiram na suplementação de 0,0; 0,5; 1,0; 1,5; 2,0 e 2,5 ?g de vitamina D3 ativa/kg de ração. Aos 21 e 35 dias de idade as aves foram pesadas e um frango/repetição com o peso médio do lote foi retirado e abatido para se obter os tibiotarsos. A composição orgânica e mineral dos ossos foi afetada pelo fornecimento suplementar de vitamina D3 ativa nas rações. Recomenda-se até 1,50 ?g de 1,25(OH)2D3/kg de ração para frangos de corte machos de 8 a 35 dias de idade.</p>

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Efeito da inclusão de óleo de linhaça nas rações sobre o desempenho e os parâmetros ósseos de frangos de corte

Cited by 9 publications

References 30 publications

Use of emulsifier and lipase in feeds for broiler chickens

Use of emulsifier and lipase in feeds for broiler chickens

Cottonseed Oil in Diets for Broilers in the Pre-Starter and Starter Phases

Características ósseas de frangos de corte alimentados com rações suplementadas com Solanum glaucophyllum

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