The effects of phytase and xylanase supplementation on performance and egg quality in laying hens

Taylor, A.E.; Bedford, M. R.; Pace, S. C.; Miller, H. M.

doi:10.1080/00071668.2018.1483575

Cited by 24 publications

(18 citation statements)

References 42 publications

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“…(2012) noted that feed consumption of hens fed wheat-based diets in their studies were approximately 111 and 88 g/hen per day, respectively. However, the values in this study were lower than those presented by Taylor et al. (2018) , who noted consumption of 124 to 126 g/hen per day when feeding xylanase in wheat-based diets, although FCR and hen-day-production were comparatively better (8% and 12%, respectively) in the current study.…”

Section: Discussioncontrasting

confidence: 95%

“…Xylanase can hydrolyze long-chain arabinoxylans into small-chain xylo-oligomers to improve nutrient digestibility, but it has been proven that xylanase has a quadratic correlation with digesta viscosity. In this study the supplemental dose was high compared with the low level of sNSP and xylan present in the diet, meaning that the xylanase likely degraded the insoluble NSP into sNSP, uplifting the digesta water holding capacity, therefore slightly reducing dry matter digestibility ( Taylor et al., 2018 ).…”

Section: Discussionmentioning

confidence: 99%

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Dietary soluble non-starch polysaccharide level and xylanase supplementation influence performance, egg quality and nutrient utilization in laying hens fed wheat-based diets

Nguyen

Morgan

2021

Animal Nutrition

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The aim of this study was to evaluate the effects of dietary soluble non-starch polysaccharide (sNSP) content and xylanase supplementation on production performance, egg quality parameters, and nutrient digestibility in Hy-line Brown layers from 25 to 32 wk of age. A total of 144 Hy-line Brown laying hens (25 wk of age) were randomly allocated to 1 of 4 wheat-based dietary treatments in a 2 × 2 factorial experimental design, with 36 replicates of individual hens per treatment. The diets were formulated to contain either a high or low sNSP level (at 13.3 or 10.8 g/kg) and were supplemented with either 0 or 12,000 BXU/kg exogenous xylanase. Birds were fed these treatment diets for an 8-wk period, and hen production performance, including daily egg production, average egg weight, daily egg mass, feed conversion ratio and proportion of dirty and abnormal eggs were measured at bird age 25 to 28 wk and 29 to 32 wk. An interaction between sNSP content of the diet and xylanase supplementation was observed on daily egg production from 25 to 28 wk of age ( P = 0.018); birds fed the high sNSP diet without xylanase had lower egg production than those fed any other treatment. An interaction between the 2 dietary factors was also observed on hen weight gain at 29 to 32 wk of age ( P = 0.014), with birds fed the low sNSP diet with 12,000 BXU/kg xylanase presenting greater weight gain compared to those fed the high sNSP diet with 12,000 BXU/kg xylanase. Feed intake at 29 to 32 wk of age was reduced by xylanase supplementation ( P = 0.047). Xylanase supplementation also increased yolk colour score at both 28 and 32 wk of age, and decreased yolk weight at 32 wk of age ( P = 0.014, 0.037 and 0.013, respectively). Birds fed the low sNSP diet presented lower protein digestibility ( P = 0.024) than those fed the high sNSP diet. Additionally, birds fed high sNSP presented higher shell reflectivity at both 28 and 32 wk of age ( P = 0.05 and 0.036, respectively). The influence of duration of feeding the treatment diets on egg quality was also determined. It was observed that egg weight, yolk weight and yolk colour score consistently increased over time, regardless of experimental treatment effects. In contrast, Haugh Unit and albumen height significantly decreased throughout the study period in all treatments, although this was less pronounced in hens fed the treatment with high sNSP and no supplemental xylanase. A reduction in shell breaking strength over time was observed only in hens fed the treatments without xylanase addition, and shell thickness was improved over time only in birds fed the low sNSP diet with xylanase. The impacts of the dietary treatments were largely inconsistent in this study, so a solid conclusion cannot be drawn. However, these findings do indicate that dietary NSP level influences layer production performance, and thus should be considered when formulating laying hen d...

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Section: Discussioncontrasting

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Dietary soluble non-starch polysaccharide level and xylanase supplementation influence performance, egg quality and nutrient utilization in laying hens fed wheat-based diets

Nguyen

Morgan

2021

Animal Nutrition

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“…The concentrations of SCFA in the ileum and ceca of laying hens were higher than the concentrations mentioned in previous laying hen research ( Johnson et al, 2008 ; Taylor et al, 2018 ), although the procedure of SCFA analysis including the extraction method was similar across the experiments. It might be associated with the difference in the age of laying hens, the composition of the diets and the rearing environment that eventually affects the microbial population in the digestive tract of the birds.…”

Section: Discussioncontrasting

confidence: 70%

Effects of diet hulless barley and beta-glucanase levels on ileal digesta soluble beta-glucan molecular weight and carbohydrate fermentation in laying hens

et al. 2022

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“…According to the authors, phytase makes complexed phosphorus available to phytic acid, improving its utilization, as well as other nutrients (calcium, iron, manganese, zinc, protein, and metabolizable energy) previously unavailable due to the complexation of the enzyme with phytate. Taylor et al (2018) observed a positive interaction between phytase and xylanase for the feed conversion ratio. The improvement in this ratio is attributed to the increase in nutrient availability in the substrate degraded by phytase.…”

Section: Resultsmentioning

confidence: 90%

Enzymatic association in the diets of laying hens raised in an alternative cage-free system

Silva

Rodrigues

Krabbe

et al. 2021

Pesq. agropec. bras.

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The objective of this work was to evaluate the use of enzyme combinations in diets, with different nutritional uplift matrices, for hens raised in an alternative cage-free system. The experiment was carried out with 800 Isa Brown laying hens aged 24-30 weeks, distributed in a 2x2 factorial arrangement, with two combinations of enzymes (phytase and xylanase) and two nutritional matrices (conventional and overvalued uplifts). The treatments were: T1, phytase (450 FTU per kilogram) + xylanase (12,000 BXU per kilogram), using matrix I (100 Kcal kg-1 apparent metabolizable energy, 0.16% calcium, 0.15% available phosphorus, 0.03 sodium, and 0.02% digestible lysine); T2, phytase (1,500 FTU per kilogram) and matrix I; T3, phytase (450 FTU per kilogram) + xylanase (12,000 BXU per kilogram), using matrix II (120 Kcal kg-1 apparent metabolizable energy, 0.22% calcium, 0.20% available phosphorus, 0.04% sodium, and 0.05% digestible lysine); and T4, phytase (1,500 FTU per kilogram) and matrix II. Productive performance variables and external and internal egg quality were analyzed. The use of phytase or of the phytase + xylanase combination, independently of the nutritional matrix used, met the nutrient requirements of the animals and maintained their productive performance. However, the combination phytase + xylanase and the adoption of matrix I was more efficient.

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The effects of phytase and xylanase supplementation on performance and egg quality in laying hens

Cited by 24 publications

References 42 publications

Dietary soluble non-starch polysaccharide level and xylanase supplementation influence performance, egg quality and nutrient utilization in laying hens fed wheat-based diets

Dietary soluble non-starch polysaccharide level and xylanase supplementation influence performance, egg quality and nutrient utilization in laying hens fed wheat-based diets

Effects of diet hulless barley and beta-glucanase levels on ileal digesta soluble beta-glucan molecular weight and carbohydrate fermentation in laying hens

Enzymatic association in the diets of laying hens raised in an alternative cage-free system

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