Effect of dietary exogenous phytase on laying performance of chicken at older ages

Lucky, N. J.; Howlider, M. A. R.; Alam, Md. Ashadul; Ahmed, Marwa F.

doi:10.3329/bjas.v43i1.19385

Cited by 6 publications

(9 citation statements)

References 19 publications

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“…Liu et al (2005) showed increased egg production and egg mass of hens due to supplementation of antibiotic with water at the level of 20, 25, 30mg/kg BW. In this experiment egg production was increased 1.7% to 2.7% which is similar to Lucky (2010) and other authors. Rahman (2007) indicated different levels of antibiotic 15% and 30% had (P<0.05) influence on egg weig ht, whereas control had no improved egg mass production.…”

Section: Feed Conversion Ratio (Fcr)supporting

confidence: 77%

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AAntibiotic use to the production performance of ISA brown layer

Rahman

Majumder

Ali

et al. 2017

Asian J. Med. Biol. Res

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The present study was designed with a view to study the effects of enrofloxacin antibiotic on ISA brown layer performance. A total of 1,80,000 laying hens (ISA brown) received and supplied enrofloxacin antibiotic in the dose of 0 mg, 10mg and 20 mg/kg BW with normal diet. Each layer was fed 120 g feed/day from 42 to 48 weeks of age. Antibiotic made significant differences in egg production (p<0.05) and especially on mortality (p<0.01). The different doses of enrocin (0 mg, 10mg and 20mg/kg BW) had no significant effect on feed conversion efficiency and egg weight. Therefore, it can be suggested that a lower dose (10mg/kg BW) of antibiotic may be benefited in commercial layer diet.

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Section: Feed Conversion Ratio (Fcr)supporting

confidence: 77%

“…Discussion 4.1. Egg production (%) Lucky (2010) found providing 15and 20mg/kg body weight in the diet increased egg production by 2% to 5%, respectively. Mahanta JD et al (2009) found egg production and egg mass of hens (ISA brown layer aged 26 weeks) were improved by biocilin supplementation.…”

Section: Feed Conversion Ratio (Fcr)mentioning

confidence: 99%

AAntibiotic use to the production performance of ISA brown layer

Rahman

Majumder

Ali

et al. 2017

Asian J. Med. Biol. Res

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“…However, phytase treatment at 1,200 FTU/kg had the same feed formulation as 300 FTU/kg but showed significantly lower colour L vs. PC, which might indicate that the effect of phytase on egg colour was more related to energy balance than corn inclusion levels. Other studies did not find significant differences in albumen index, yolk index, yolk percent or yolk colour with phytase supplementation (Jalal and Scheideler, 2001, Park et al, 2009, Lucky et al, 2014.…”

Section: Journal Of Applied Animal Nutritionmentioning

confidence: 83%

Supplementation of Buttiauxella sp. 6-phytase to commercial laying hen diets with reduced nutrient density on productive performance and egg quality

Dersjant-Li¹,

Millán²,

Casabuena³

et al. 2018

JAAN

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SummaryA study was conducted to evaluate productive performance in laying hens fed diets with reduced nutrient density based on the nutritional contribution of a Buttiauxella phytase in laying-hen diets from 21-57 weeks of age. A commercial laying hen diet was offered ad libitum to the 480 ISA Brown laying hens from 18-21 weeks of age. From 21 weeks onwards, the hens received one of four dietary treatments: a positive control (PC) diet, a down specified diet (DS1) + phytase at 300 FTU/kg, a second downspecified diet (DS2) + phytase at 600 FTU/kg and a third test diet formulated as per DS1 + phytase at 1,200 FTU/kg feed. The PC was formulated based on ISA breeder recommendations. DS1 was formulated with reduction of 0.149% available P, 0.134% Ca, 55 kcal/kg AME, 0.33% CP, digestible amino acids (up to 0.015%) and 0.013% Na based on the contribution of Buttiauxella phytase at 300 FTU/kg. DS2 was formulated with reduction of 0.177% available P, 0.159% Ca, 60 kcal/kg AME, 0.61% CP, digestible amino acids (up to 0.028%) and 0.02% Na based on the contribution of Buttiauxella phytase at 600 FTU/kg. Every dietary treatment was fed to 12 cages containing 10 hens each. The trial treatments did not include a full, DS negative control, as ethical considerations regarding birds' welfare when feeding such diets over such an extended period of time did not permit this. No significant differences were seen in hen-day egg production, feed intake, egg weight, feed to egg mass ratio, shell, yolk or albumen proportion, unsaleable eggs or shell breaking strength in laying hens fed the PC diet or the DS diets with added phytase. Yolk colour increased significantly with phytase supplementation. Supplementing the DS1 diet with 300 FTU and the DS2 diet with 600 FTU resulted in non-significant differences in tibia ash, Ca and P, compared to the PC diet. The data from this study indicated that applying the nutrient contributions for Buttiauxella phytase at 300 and 600 FTU/kg maintained the egg production, BW and egg quality parameters compared to PC. The best economic efficiency value during the whole experimental period was recorded with phytase at 600 FTU/kg when full matrix values are used. When commercial diets are formulated based on ISA breeder recommendations, lowering diet nutrient density while supplementing with phytase reduced the overall diet cost, which should contribute to the profitability of egg production.

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“…In addition, Ahmadi et al (2008) indicated that dietary phytase supplementation positively affected egg production, egg weight and feed intake of laying hens. Moreover, Lucky et al (2014) demonstrated that dietary phytase supplementation significantly improved egg production and feed conversion of aged laying hens.…”

Section: Resultsmentioning

confidence: 99%

“…Vet. Adv., 10 (12): 918-929, 2015Hughes et al, 2008Ziaei et al, 2009;Mohammed et al, 2010;Lucky et al, 2014) and eggshell quality (Lim et al, 2003;Hussein et al, 2006;Ziaei et al, 2009). Others failed to detect a beneficial effect for supplemental phytase on laying performance (Liebert et al, 2005;Al-Sharafat et al, 2009) or eggshell quality (Afsari et al, 2013;Lucky et al, 2014;Musilova et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Performance, Egg Quality and Mineral Utilization of Dokki-4 Laying Hens Fed Diets Containing Three Levels of Nonphytate Phosphorus in Absence or Presence of Microbial Phytase, Citric Acid or Both

Rabie¹,

Ismail²,

Hassan³

et al. 2015

Asian J. of Animal and Veterinary Advances

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The present study was conducted to determine the effects of single and combined addition of Citric Acid (CA) and Microbial Phytase (MP) on performance, egg quality and mineral utilization of hens fed graded levels of nonphytate phosphorus (NPP). The NPP levels were 0.40, 0.30 and 0.20% without and with MP (0.05%), CA (2.0%) or both. Twelve groups of both 28 weeks old hens and cockerels were fed their respective experimental diets. Criteria evaluated were feed intake, egg production, egg weight, egg mass, feed conversion ratio, egg components, shell thickness, Haugh units, yolk index, tibia ash, tibia Ca, P, Mg, Cu and Zn and apparent retention of these minerals. Feeding the 0.2% NPP diet adversely affected (p<0.01) egg production, egg weight, feed intake, egg mass, feed conversion, percent eggshell, yolk index, shell thickness, tibia ash content and retention of Cu and Zn compared with their positive control. Although birds fed 0.3% NPP gave comparable performance and egg quality to their positive controls, tibia bone ash, tibia contents of Ca and P and retention of P, Cu and Zn of the former were significantly lower than the latter. The poor productive performance and egg quality due to feeding 0.2% NPP diet were completely corrected by MP but CA was not effective. Added MP can effectively prevent the reductions in performance and egg quality and either microbial phytase or citric acid may partially alleviate the depression of mineral utilization in birds fed the low NPP diets, without a synergistic positive effect for their combination.

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Effect of dietary exogenous phytase on laying performance of chicken at older ages

Cited by 6 publications

References 19 publications

AAntibiotic use to the production performance of ISA brown layer

AAntibiotic use to the production performance of ISA brown layer

Supplementation of Buttiauxella sp. 6-phytase to commercial laying hen diets with reduced nutrient density on productive performance and egg quality

Performance, Egg Quality and Mineral Utilization of Dokki-4 Laying Hens Fed Diets Containing Three Levels of Nonphytate Phosphorus in Absence or Presence of Microbial Phytase, Citric Acid or Both

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