Implications of phytic acid and supplemental microbial phytase in poultry nutrition: a review

Sebastian, S; Touchburn, S. P.; Chavez, E. R.

doi:10.1079/wps19980003

Cited by 125 publications

(68 citation statements)

References 89 publications

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“…As it is known and was previously mentioned, phytic acid compound is the target of phytase enzyme. Phytic acid (known as inositol hexakisphosphate (IP6)) is a complex compound, which correlates with proteins and metal elements such as Ca, Zn, Mn, Fe, Na and Cu (Coulibaly et al, 2011;Sebastian et al, 1998;Vohra et al, 1965).…”

Section: Discussionmentioning

confidence: 99%

The Effect of Olive Cake, with or Without Enzymes Supplementation, on Growth Performance, Carcass Characteristics, Lymphoid Organs and Lipid Metabolism of Broiler Chickens

Al-Harthi

2017

Rev. Bras. Cienc. Avic.

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Keywords Broilers, enzymes, olive cake, carcasses parameters, lymphoid organs and lipid metabolism constituents.Submitted: May/2016 Approved: November/2016 ABStRACtAn experiment was carried out to investigate the effect of using olive cake (OC) in broiler diets, when it is supplemented with multienzymes or phytase enzyme. The OC was included in isocaloric, isonitorgneous diets at 5 and 10% levels and fed to broilers from 1-28 days of age. Experimental diets were fed with or without either of the two enzymes: galzym or phytase. This resulted in 3 OC levels (0, 5, 10%) × 3 enzyme supplementations (no enzyme, galzym enzyme, phytase enzyme). This included nine treatments, and each treatment was replicated eight times with seven broiler chickens each. Feed intake, feed conversion ratio, body weight gain, survival rate, dressing, inner and immune organ´s weights (compared to live body weight); and blood lipids constituents were investigated. According to the findings in this study, it could be concluded that OC is a valuable ingredient and might be included in the broiler diet up to 10% without galzym or phytase enzyme addition. Also, further studies should investigate the possibility of using higher ratios of it or mixed with another by-product in poultry diets; as a very cheap by-product. Moreover, these studies can be associated with suitable additives at different concentrations that might help to increase the utilization of olive cake or at least to keep performance equal to the control. On the other hand, it is worthwhile to follow the positive effect of phytase enzyme on cholesterol and very low density lipoprotein (VLDL) concentrations, which may relate it´s use with chicken´s health.

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Section: Discussionmentioning

confidence: 99%

The Effect of Olive Cake, with or Without Enzymes Supplementation, on Growth Performance, Carcass Characteristics, Lymphoid Organs and Lipid Metabolism of Broiler Chickens

Al-Harthi

2017

Rev. Bras. Cienc. Avic.

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“…Zootec., v.38, n.10, p. [1948][1949][1950][1951][1952][1953][1954][1955]2009 produzida principalmente por microrganismos do gênero Aspergillus e com capacidade de hidrolisar o fitato, uma molécula que complexa o fósforo (Sebastian et al, 1998), alguns cátions (Gordon & Roland, 1998), energia (Namkung & Leeson, 1999) e aminoácidos (Sebastian et al, 1997), disponibilizando esses nutrientes para aproveitamento dos monogástricos.…”

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Avaliação da matriz nutricional da enzima fitase em rações contendo sorgo para poedeiras comerciais

et al. 2009

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RESUMO -Avaliaram-se os efeitos da inclusão de fitase e de sua matriz nutricional em rações contendo sorgo sobre o desempenho das aves, a qualidade dos ovos, a ingestão e a excreção e retenção de fósforo e nitrogênio em poedeiras comerciais.Utilizaram-se 180 poedeiras comerciais, distribuídas em delineamento inteiramente ao acaso em esquema fatorial 2 × 2 + 1, com dois níveis de fitase (0 e 500 FTU/kg de ração) e dois níveis de substituição do milho pelo sorgo (50 e 100%) e uma ração testemunha (isenta de sorgo e fitase), constituindo cinco tratamentos com seis repetições de seis aves. As rações foram à base de milho e farelo de soja, sem fitase e sorgo, considerando a matriz nutricional da fitase. O desempenho e a qualidade dos ovos foram avaliados em quatro períodos de 28 dias. Ao final do experimento, um ensaio de metabolismo foi realizado para quantificar a ingestão, excreção e retenção aparente de fósforo e nitrogênio e avaliar a viabilidade econômica das rações. Ao considerar a matriz nutricional da fitase, as exigências em energia, cálcio, fósforo, proteína e aminoácidos foram atendidas, mesmo com a redução dos níveis nutricionais da dieta, e o desempenho e a qualidade dos ovos não foram comprometidos. A adição de fitase nas rações possibilitou reduzir todos os parâmetros econômicos avaliados. O sorgo pode substituir totalmente o milho e ser o único grão energético da dieta.Palavras-chave: alimentos alternativos, avaliação econômica, aves, retenção aparente de fósforo e nitrogênio Evaluation of the nutritional matrix values for phytase enzyme in laying hens diets with sorghum ABSTRACT -The effects were assessed of including phytase and its nutritional matrix in diets containing sorghum on the performance of the birds, egg quality, intake and phosphorus excretion and retention in laying hens. One hundred and eighty laying hens were arranged in a randomized complete design in a 2 × 2 + 1 factorial arrangement with two phytase levels (0 and 500 FTU/kg diet), two levels of corn replacement for sorghum (50 and 100%) and a control diet (without phytase and sorghum) forming five treatments and six replications of six birds. The diets were based on corn and soybean meal, without phytase and sorghum, considering the phytase nutritional matrix. Performance and egg quality were determined in four 28-day periods. At the end of the experiment, a metabolism trial was carried out to quantify intake, excretion and apparent retention of phosphorus and nitrogen and to assess the economic viability of the diets. When the phytase nutritional matrix was considered, the energy, calcium phosphorus, protein and amino acid requirements were met, even with a reduction in the nutritional levels of the diet, and performance and egg quality were not affected. Adding phytase to the diets decreased all the economic parameters. Sorghum can be used to totally replace corn, and can be the only energy grain in the diet.Key Words: alternative foods, apparent phosphorus and nitrogen retention, birds, economic assessment IntroduçãoAtualmente ...

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“…Microbial phytase is now an accepted feed additive used extensively in commercial diets for both pigs and poultry (Sebastian et al, 1998;Augspurger et al, 2007;Selle and Ravindran, 2008). It effectively improves the availability of phytate phosphorus (P) and decreases P excretion, thereby reducing environmental pollution (Sharpley et al,.…”

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confidence: 99%

Effect of microbial phytase and diet fermentation on ileal and total tract digestibility of nutrients and energy in growing pigs

Nitrayová¹,

Patráš²,

Brestenský³

et al. 2009

CZECH J ANIM SCI

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A digestibility experiment using six ileally cannulated growing gilts (initial BW 31.6 kg) was carried out to study the effect of microbial phytase and diet form on apparent ileal and total tract digestibilities of dry matter (DM), nitrogen (N), phosphorus (P), calcium (Ca) and energy and on apparent ileal digestibility of amino acids. The basal P-deficient diet was fed either dry or mixed with water (feed:water ratio 1:2.5) and fermented in a laboratory setup. The enzyme was added to the dry diet at four levels (0, 1 000, 1 500 and 3 000 U/kg) and to the liquid fermented diet at two levels (0 and 1 000 U/kg) using a 6 × 6 Latin square design. The supplementation of microbial phytase to the basal diets significantly (P < 0.05) improved ileal and total tract digestibility of P and tended to improve the digestibility of Ca. Phytase supplementation at 3 000 U/kg to the dry diet improved ileal and total tract P digestibility by approximately 30 and 60%, respectively. A similar effect was found in the liquid fermented diet supplemented with phytase at 1 000 U/kg. As a result of improved P digestibility, faecal P excretion was reduced by 20-40%. There was no significant effect of phytase addition or diet fermentation on the digestibility of DM, N, energy or amino acids. The response in amino acid digestibility to phytase calculated with acid insoluble ash as a marker was slightly higher than that calculated with Cr 2 O 3 .

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Implications of phytic acid and supplemental microbial phytase in poultry nutrition: a review

Cited by 125 publications

References 89 publications

The Effect of Olive Cake, with or Without Enzymes Supplementation, on Growth Performance, Carcass Characteristics, Lymphoid Organs and Lipid Metabolism of Broiler Chickens

The Effect of Olive Cake, with or Without Enzymes Supplementation, on Growth Performance, Carcass Characteristics, Lymphoid Organs and Lipid Metabolism of Broiler Chickens

Avaliação da matriz nutricional da enzima fitase em rações contendo sorgo para poedeiras comerciais

Effect of microbial phytase and diet fermentation on ileal and total tract digestibility of nutrients and energy in growing pigs

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