A comparison of two sources of phytase in liquid and dry forms in broilers

Payne, R. L.; Lavergne, T. K.; Southern, L. L.

doi:10.1093/ps/84.2.265

Cited by 29 publications

(19 citation statements)

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“…O ácido fítico e as fibras das dietas têm a capacidade de se ligar a cátions, entre eles, o cálcio e o fósforo, que são os principais minerais da matriz inorgânica do osso, o que não permite que eles sejam completamente utilizados pelas aves (Payne et al, 2005), enquanto o acúmulo de radicais livres, encontrados em gorduras peroxidadas, pode causar disfunção osteoblástica e diminuição da formação óssea (Almeida et al, 2010) (1) CT, comprimento da tíbia; PT, peso da tíbia; IST, índice de Seedor da tíbia; MST, matéria seca da tíbia; CZT, cinzas da tíbia (expresso na matéria seca); DfT, deformidade da tíbia; RT, resistência da tíbia; Controle, sem farelo integral de arroz parboilizado.…”

Section: Resultsunclassified

Farelo integral de arroz parboilizado submetido a armazenamento prolongado para alimentação de codornas de corte

Farias

Freitas

Xavier

et al. 2014

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a estabilidade oxidativa do farelo integral de arroz parboilizado (FIAP) durante o armazenamento e os efeitos do seu uso na alimentação de codornas de corte. Foram utilizados 245 animais com sete dias de idade, de ambos os sexos, distribuídos em delineamento inteiramente casualizado, com cinco tratamentos, em arranjo fatorial 2x2+1, e sete repetições de sete aves. Avaliaram-se os seguintes tratamentos: dieta controle, sem adição de FIAP; e níveis de inclusão, na dieta controle, de 10 e 20% de FIAP armazenado por 180 dias (FIAPA) ou de FIAP novo (FIAPN). Houve oxidação lipídica do FIAP durante o armazenamento, e o índice de acidez foi de 4,25 e 63,50 (% em ácido oleico) e o de peróxido foi de 15,64 e 38,28 meq kg -1 para FIAPN e FIAPA, respectivamente. A inclusão do FIAP resultou em menor digestibilidade da matéria seca e do nitrogênio e em maior valor de energia metabolizável da ração, em comparação à ração controle. A inclusão de 20% de FIAPA resultou em menor energia metabolizável da ração do que a adição do FIAPN. As inclusões não influenciaram desempenho, características da carcaça, pesos relativos do fígado e do pâncreas, e crescimento e qualidade óssea. O FIAPA, mesmo com rancidez, pode ser utilizado na alimentação de codornas de corte em níveis de até 20% de inclusão.Termos para indexação: Coturnix coturnix, características de carcaça, desempenho produtivo, estabilidade oxidativa, rancidez hidrolítica, rancidez oxidativa. Parboiled rice bran subjected to prolonged storage for meat quail feedingAbstract -The objective of this work was to evaluate the oxidative stability of parboiled rice bran (PRB) during storage and the effects of its use on meat quail feeding. Two hundred forty-five animals, with seven days of age, of both sexes, were used, distributed in a completely randomized design, with five treatments in a 2x2+1 factorial arrangement and seven replicates of seven chicks. The following treatments were evaluated: control diet, without PRB; and inclusion levels of 10 and 20% of 180-day-storaged PRB (SPRB) or of new PRB (NPRB) in the control diet. There was lipid oxidation of PRB during storage, the acid index was 4.25 and 63.50 (% as oleic acid) and the peroxide index was 15.64 and 38.28 meq kg -1 for NPRB and SPRB, respectively. The inclusion of PRB resulted in lower dry matter and nitrogen digestibility and in higher metabolizable energy value of feed when compared to the control diet. The inclusion of 20% SPRB resulted in lower metabolizable energy of feed than the addition of NPRB. The inclusions did not influence performance, carcass traits, relative weights of the liver and pancreas, and bone growth and quality. The SPRB, although rancid, can be used as feed for meat quail at levels up to 20% inclusion.

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Section: Resultsunclassified

Farelo integral de arroz parboilizado submetido a armazenamento prolongado para alimentação de codornas de corte

Farias

Freitas

Xavier

et al. 2014

Pesq. agropec. bras.

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“…To meet dietary P requirement of broiler, diets are supplemented with inorganic P. It and phytate P of broiler diets can be contributed to environmental pollution if the availability of P was low. To help increase the availability of phytate P, exogenous phytase enzymes are being added to commercial diets [4]. Phytase research that has focused on the effect of varying levels of supplemental phytase has shown increases in broiler performance, bone ash, and phytate P utilization with each additional unit or level of phytase [5].…”

Section: Introductionmentioning

confidence: 99%

Effects of Supplemental Dietary Phytase on Performance and Blood Biochemical Parameter of Broiler Chicks

Jalali¹,

Babaei²

2012

IJBBB

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Abstract-An experiment was conducted to study the effects of phytase enzyme on performance, blood biochemical parameter and tibia ash content of broiler chicks. Two hundred eighty Ross broiler chicks were located randomly to seven experimental diets at four replicates (cages) and fed from 5 to 28 days of age. A positive control diet (0.422% non-Phytate Phosphorus, nPP) and a negative control diet (0.316% nPP) were used, and five more diets were manufactured by supplementing the negative control diet with 300, 600, 1,200, 2,400, and 24,000 FTU/kg of exogenous phytase (Phyzyme XP). The addition of exogenous phytase above 600 FTU/kg and 1200 FTU/kg improved (P<0.05) feed conversion ratio and body weight gain of the birds fed the negative control diet, respectively. Decreasing nPP content in the diet reduced tibia ash (P<0.001) content and phytase supplementation increased it (P<0.001) as logarithmic liner equation. Phosphorus concentration of serum chicks fed negative control diet was reduced and phytase supplementation above 600 FTU/kg increased it. However, negative control diet increased alkaline phosphatase activity of serum and addition of phytase above 2400 FTU/kg reduced its activity to level of positive control diet (P<0.01). Albumin concentration of serum chicks was increased by addition of phytase above 600 FTU/kg diet. The lowest calcium content and highest total protein concentration of serum chicks were seen at treatment of 600 FTU/kg phytase. These results demonstrated that addition of 600 FTU/kg phytase to low-available phosphorus diets (75% of NRC recommended) improved performance of broiler chicks due to improve utilization of phytate phosphorus of corn-soy bean meal diets.

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“…Most studies that correlate dietary phytase inclusion with phosphorus availability and bone deposition express their results as bone ash and phosphorus percentage and as bone strength (Banks et al, 2004;Payne et al, 2005; Pérsia & Saylor, 2006 e Martinez et al., 2006, and suggest that the inclusion of phytase in diets with different available phosphorus levels promote higher ash content or tibia strength. Means followed by different letters in the same column are significantly different (p<0.05) by the test of Tukey.1 -ns -not significant ; ** -significant (p < 0.01).…”

Section: Resultsmentioning

confidence: 99%

“…Aiming at lowering production costs, many current research studies have focused on improving the efficiency of feedstuff utilization and to reduce the impact of animal production on the environment (Payne et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…The inclusion of 250 FTU phytase/kg feed and no phytase supplementation (control treatment) promoted the best results. Onyango et al (2004) evaluated the inclusion of phytase in feeds based on corn and soybean meal with reduced phosphorus content in starter broilers, and observed that bone density, bone mineral content, bone strength, and ash percentage were positively influenced by dietary phytase supplementation.Most studies that correlate dietary phytase inclusion with phosphorus availability and bone deposition express their results as bone ash and phosphorus percentage and as bone strength (Banks et al, 2004;Payne et al, 2005; Pérsia & Saylor, 2006 e Martinez et al., 2006, and suggest that the inclusion of phytase in diets with different available phosphorus levels promote higher ash content or tibia strength. Means followed by different letters in the same column are significantly different (p<0.05) by the test of Tukey.1 -ns -not significant ; ** -significant (p < 0.01).…”

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confidence: 99%

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Effect of dietary phytase suplementation on the performance, bone densitometry, and phosphorus and nitrogen excretion of broilers

Assuena

Junqueira

Duarte

et al. 2009

Rev. Bras. Cienc. Avic.

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This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the performance results obtained with the level of 250 FTU phytase/kg feed were not different from the control treatment. The best bone density results were observed in the control treatment, with no phytase. The results of this experiment indicate that the nutritional matrix of the phytase product needs to be reviewed when added in levels higher 250 FTU/kg to broiler diets. INTRODUCTIONAiming at lowering production costs, many current research studies have focused on improving the efficiency of feedstuff utilization and to reduce the impact of animal production on the environment (Payne et al., 2005).Phosphorus is one of the most expensive nutrient of poultry and swine feeds, second only to energy and protein (Borges, 1997). It is nutritionally essential, as shown by its several roles in the body, and it is particularly important during growth. However, two thirds of the phosphorus contained in cereal grains and oil seeds are in the form of phytate, which can bind to other nutrients, rendering them unavailable for poultry and pigs, thereby, requiring dietary inorganic phosphorus supplementation (Denbow et al., 1995).The production of industrial phytase is based on microorganisms, using DNA recombination techniques. This enzyme increases phosphorus (P) availability in plant feed ingredients, where P is usually present as phytate. The dietary supplementation of phytase allows poultry and pigs to more efficiently absorb phosphorus, reducing the amount of inorganic phosphorus supplementation, and promoting better weight gain, feed conversion ratio, feed intake, and bone mineralization, as well as reducing mortality (Qian et al., 1996).Along with calcium, phosphorus has an essential role in bone formation. In the animal, phosphorus comprises about 1% of live weight, and it is carefully considered when feeds and supplements are formulated. About 80% of phosphorus in the animal body is deposited 26in bones and teeth. Therefore, the inclusion of phytase in broiler diets may enhance their bone development. The objectives of the present study were to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion in the litter during the starter (1 to 21 days), grower (22 to 42 days), and t...

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A comparison of two sources of phytase in liquid and dry forms in broilers

Cited by 29 publications

References 5 publications

Farelo integral de arroz parboilizado submetido a armazenamento prolongado para alimentação de codornas de corte

Farelo integral de arroz parboilizado submetido a armazenamento prolongado para alimentação de codornas de corte

Effects of Supplemental Dietary Phytase on Performance and Blood Biochemical Parameter of Broiler Chicks

Effect of dietary phytase suplementation on the performance, bone densitometry, and phosphorus and nitrogen excretion of broilers

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