Does citric acid improve performance and bone mineralization of broilers when combined with phytase? A systematic review and meta-analysis

Vieira, Bruno Serpa; Silva, F.G.; Oliveira, Cléber Franklin Santos de; Corrêa, Angelita Duarte; Caramori, João Garcia; Corrêa, G.S.S.

doi:10.1016/j.anifeedsci.2017.07.016

Cited by 9 publications

(8 citation statements)

References 29 publications

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“…Emami et al (2013) and Woyengo et al (2010) found increased ileal P digestibility by combining organic acids with phytase. In addition, Vieira et al (2017) performed a meta-analysis which showed that adding both phytase and citric acid improved bird weight gain and ash content in the tibia.…”

Section: Introductionmentioning

confidence: 99%

Effect of crop retention time and acidification of the feed on phytase efficacy in broiler chickens

Kristoffersen

Itani

Benzertiha

et al. 2021

British Poultry Science

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1. An in vitro test to study the effect of pH reduction on phytic acid degradation over time for four commercial phytases was conducted. Changing the pH level affected phytate degradation over time differently for the various phytases (P < 0.05). 2. The phytase with the largest response of pH reduction in the in vitro test and a feed pH level of 4.5 was chosen for the broiler experiment. The effect of intermittent feeding, addition of 500 FYT C. braakii-derived phytase and 1% formic acid were tested in a 2 x 2 x 2 factorial arrangement. Ten pens containing 10 birds each were fed each of the treatment combinations from 15 to 36 d of age. Ad libitum fed birds had two 4-h dark periods with 2-h light in-between, while intermittently fed birds in addition had restricted access to the feed through except for four 1-h and one 2-h feeding bouts.3. In addition to assessing performance, excreta were collected on a pen basis. The tibia and contents from jejunum and ileum were collected from one bird per pen. In addition, crop contents were collected from the intermittently fed birds 80, 160 and 240 min after the start of feeding. 4. Phytase improved performance, ileal and jejunal P digestibility, P retention and tibia ash and P concentration (P < 0.001). Intermittent feeding increased jejunal P digestibility and P retention (P < 0.001), but ileal P digestibility increased only in the intermittently fed birds compared to the ad libitum fed birds without phytase addition (P = 0.025). Acidification increased jejunal P digestibility only in the ad libitum fed birds (P = 0.019). There was a considerable inositol hexakisphosphate degradation into lower isomers in the crop after 80 min for diets with phytase (InsP 3 and 4 :P < 0.001), and acidification further increased this degradation (InsP 4 :P = 0.007). After 160 min retention time, the effect of phytase and acidification was even higher with more significant (P < 0.05) interactions. 5. The current data showed that prolonged retention time in the crop combined with feed acidification increased phytase efficacy by improving the phytate degradation.

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Section: Introductionmentioning

confidence: 99%

Effect of crop retention time and acidification of the feed on phytase efficacy in broiler chickens

Kristoffersen

Itani

Benzertiha

et al. 2021

British Poultry Science

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“…Phytase present in the feed ingredients themselves has been shown to increase daily feed consumption which proportionally increases body weight gain as well as the growth-rate of poultry (Zhamuer, 2013;Bradbury et al;2017, Moss et al, 2017. Study conducted by Moss et al (2017) shows that protease supplementation alone increase weight gains of poultry, but in combination with phytase decrease weight gain.…”

Section: Phytases In Poultry Farming-functionalitymentioning

confidence: 99%

“…Table 2 shows the summary of phytase functionality in poultry. et al, 2018;Broch et al, 2018Hamdi et al, 2018Bradbury et al,2017Moss et al, 2017Morgan et al, 2016Chen et al, 2013Sa et al, 2013;Dilger et al, 2004;Viveros et al, 2002;Zyla, 2001 2 Improve egg production Gao et al, 2013;Cabuk et al, 2004;Jalal and Scheideler, 2001;Um and Paik, 1999; 3 Enhance egg quality Gao et al, 2013;Cabuk et al, 2004 Um andPaik, 1999 4 Bone mineralization Scholey et al, 2018;Hamdi et al, 2018;Li et al, 2018;Bradbury et al (2017); Vieira et al,2017;Lee et al, 2017;Gao et al, 2013;Sa et al, 2013;Dilger et al, 2004;Zyla, 2001 5 Improve illeal digestibility performance of Phosphorous, Calcium, Magnesium, Zinc or Sodium in broiler chicken diets Moss et al, 2018;Kim et al, 2017;Viveros et al, 2002;Zyla, 2001;Um and Paik, 1999;Hamdi et al, 2018;Gao et al, 2013 6 Reduce liver weight Viveros et al, 2002 7 Improve digestibility of protein and amino acid (Val, Ile, nonessential amino acid and total amino acid)…”

Section: Phytases In Poultry Farming-functionalitymentioning

confidence: 99%

Current and Future Applications of Phytases in Poultry Industry: A Critical Review

Enshasy

Dailin

Manas

et al. 2018

Journal of Advances in VetBio Science and Techniques

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Phytases are enzymes that initiate the removal of phosphate from phytate. This enzyme has been widely utilized in animal feeding especially in the poultry industry to enhance phosphorus intake and minimize environmental pollution. Phytases are widely distributed in microbial, plants and animals. Supplementations of phytase into the diets of poultry have great impact to the improvement of poultry immune systems and increase bird weight. In addition to that, phytase are able to improve both quantity and quality of eggs, egg mass and eggshell quality. This review covers the classifications and distribution of phytases in different biofactors. In addition, it shed more light on the recent trends of application and beneficial impact in poultry farming.

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“…However, those reviews were based on a narrative approach, which mostly led to an inconclusive epilogue due to the contradictory results among studies. The use of systematic review and metaanalysis has become popular in animal science [14][15][16][17][18] . This methodology can integrate and determine the overall effect of interventions from several studies to provide more accurate insight than the narrative review.…”

Section: Introductionmentioning

confidence: 99%

The effects of dietary seaweed inclusion on growth performance of broiler chickens: a systematic review and meta-analysis

et al. 2020

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Background: There has been great interest in the use of seaweed as a functional feed ingredient for poultry in the last decade. This study aimed to assess the effects of dietary seaweed inclusion on growth performance of broiler chickens by using a systematic review and meta-analysis approach. Methods: A systematic search of published research articles related to seaweed, broiler chickens, and growth performance was conducted using three online databases (Scopus, PubMed, and SciELO). Mean values, standard deviation, and sample size were extracted from each eligible study. The estimated effect size was then quantified using Hedges’ g with a 95% confidence interval (CI). Data were pooled using a fixed-effect model due to the absence of heterogeneity after being pre-checked using the I2 statistic. Results: A total of six studies (nine comparisons) involving 2,257 broiler chickens were accommodated in this study. The seaweed type consisted of seaweed blend, Laminaria japonica, Undaria pinnatifida, Hizikia fusiformis, and Ulva lactuca. The inclusion dose ranged from 2 to 30 g/kg, while the intervention duration ranged from 21 to 42 days. No substantial heterogeneity among studies (I2 = 0.00%) was found for feed intake, body weight gain, and feed conversion ratio. Dietary seaweed had no significant effect on feed intake (Hedges’ g = 0.19; 95% CI = -0.22 to 0.60; P = 0.280). However, broiler chickens fed dietary seaweed had superior body weight gain (Hedges’ g = 0.64; 95% CI = 0.22 to 1.06; P = 0.000) and preferable feed conversion ratio (Hedges’ g = -0.53; 95% CI = -0.95 to -0.11; P = 0.004). Conclusions: The current investigation highlights that dietary seaweed had growth-promoting potency for broiler chickens. However, more research on this issue is still required to build more comprehensive evidence.

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Does citric acid improve performance and bone mineralization of broilers when combined with phytase? A systematic review and meta-analysis

Cited by 9 publications

References 29 publications

Effect of crop retention time and acidification of the feed on phytase efficacy in broiler chickens

Effect of crop retention time and acidification of the feed on phytase efficacy in broiler chickens

Current and Future Applications of Phytases in Poultry Industry: A Critical Review

The effects of dietary seaweed inclusion on growth performance of broiler chickens: a systematic review and meta-analysis

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