Investigation of the interaction between separate calcium feeding and phytase supplementation on growth performance, calcium intake, nutrient digestibility and energy utilisation in broiler starters

Abdollahi, M.R.; Duangnumsawang, Y.; Kwakkel, R.P.; Steenfeldt, Sanna; Bootwalla, S. M.; Ravindran, V.

doi:10.1016/j.anifeedsci.2016.05.017

Cited by 22 publications

(11 citation statements)

References 36 publications

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“…However, the difference was marginal (4.3% difference) and there was no statistical difference for FI and FCR between those 2 diets. Moreover, there was no influence of dietary Ca levels on dietary energy response ( Abdollahi et al., 2016 ; Akter et al., 2018 ). Thus, the different growth performance observed in the present study between the diets with 2 levels of CP is entirely due to the difference in dietary CP content.…”

Section: Discussionmentioning

confidence: 93%

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Multi-carbohydrase enzymes improve feed energy in broiler diets containing standard or low crude protein

et al. 2021

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This study evaluated the effect of multi-carbohydrase (MC) on energy and nitrogen (N) balance and gene expression in broilers fed diets with different crude protein (CP) contents. The study employed a 2 × 2 factorial arrangement of treatments. The factors were presence or absence of MC, and standard (SCP) or low (LCP) dietary CP concentration. A 3-phase feeding program was used, including starter (0 to 7 d), grower (8 to 17 d) and finisher (18 to 28 d) phases. The study was undertaken in closed calorimetry chambers. Each of the 4 dietary treatments was replicated 8 times in total across 2 runs, with 2 birds per replicate ( n = 64). Data for energy partitioning and N balance were collected from d 25 to 28. On d 28, birds were euthanized to collect muscle and intestinal tissue samples for gene expression. The results showed that the MC increased apparent metabolizable energy (AME, P < 0.01) and net energy (NE, P < 0.05), and reduced the feed conversion ratio (FCR, P < 0.01) in all diets. The proportion of energy retained as fat per total energy retention (REf/RE) was positively correlated with feed AME and NE ( r = 0.541, P < 0.01 and r = 0.665, P < 0.001, respectively), suggesting that feed energy augmented with increased fat gain. Muscle ATP synthase subunit alpha ( ATP5A1W ) gene expression had a positive correlation with REf/RE and feed NE ( r = 0.587, P < 0.001 and r = 0.430, P < 0.05, respectively). Similarly, muscle peroxisome proliferator-activated receptor gamma coactivator 1 alpha ( PGC-1A ) expression was negatively correlated with weight gain and positively correlated with FCR ( r = −0.451, P < 0.05 and r = 0.359, P < 0.05, respectively). These correlations show that over-expressions of muscle genes related to energy production reduce bird performance. This study demonstrated that MC increase dietary energy utilization, regardless of dietary CP concentration. However, the energy released by the enzymes increases feed energy-to-CP ratio, meaning there is excess energy that is then deposited as body fat. This suggests that supplemental MC in broiler feeds is beneficial if diets are formulated to contain marginal energy levels.

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Section: Discussionmentioning

confidence: 93%

“…In this study, the dietary Ca concentration was 10 g/kg in the LCP diets and 8 g/kg in the SCP diets. It was noted that Ca concentration above 8.5 g/kg can negatively affect bird performance ( Fallah et al., 2019 ), but according to the results from Abdollahi et al. (2016) and Akter et al.…”

Section: Discussionmentioning

confidence: 99%

Multi-carbohydrase enzymes improve feed energy in broiler diets containing standard or low crude protein

et al. 2021

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“…Birds fed a 4.3 g Ca/kg diet showed higher N digestibility than birds fed diets with 1.3 g Ca/kg. Therefore, dietary Ca concentration linearly increased the CP digestibility [ 25 ]. On the contrary, excessive Ca intake may have adverse effects on the digestion and absorption of nutrients.…”

Section: Discussionmentioning

confidence: 99%

Effect of Dietary Supplementation with Calcium, Phosphorus and Vitamin D3 on Growth Performance, Nutrient Digestibility, and Serum Biochemical Parameters of Growing Blue Foxes

Liu

et al. 2022

Animals

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Based on the randomized design, a 3 × 3 factorial experiment was designed to examine the effects of dietary calcium (Ca), phosphorus (P), and vitamin D3 (VD3) supplemental levels with a fixed 1.5/1 ratio of Ca to P on the growth performance, nutrient digestibility, and serum biochemical indices blue foxes’ growth. In total, 135 male blue foxes with the age of 60 days were randomly divided into 9 groups each with 15 blue foxes. The blue foxes belonging to the nine treatment groups were fed Ca supplementation (0%, 0.4%, or 0.8%) and VD3 supplementation (1000, 2000, or 4000 IU/kg DM). The base diet contained 0.8% Ca and 327 IU/kg VD3. The dosage of VD3 in blue foxes showed a significant impact on their growth performance (p < 0.05). The Ca dosage had a linear effect on the digestibility of the CP and carbohydrates (CHO) (p < 0.05). In conclusion, the results indicated that the Ca and VD3 doses showed promising effects on growth performance and nutrient digestibility in growing blue foxes and could reduce fecal N and P via improvement in protein and P utilization.

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“…Several works have highlighted the effect of a calcium-rich diet on phytase activity. Calcium, mainly found in limestone, interacts with phytate molecule, making the substrate less accessible to phytases [44,45]. Alternatives to overcome this problem are a profitable field of study for the next years given that the separation of limestone and feed is an arduous task.…”

Section: Phytases Are Mostly Employed In Feed Industrymentioning

confidence: 99%

Fungal phytases: from genes to applications

Corrêa

Araújo

2020

Braz J Microbiol

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Phytic acid stores 60-90% of the inorganic phosphorus in legumes, oil seeds, and cereals, making it inaccessible for metabolic processes in living systems. In addition, given its negative charge, phytic acid complexes with divalent cations, starch, and proteins. Inorganic phosphorous can be released from phytic acid upon the action of phytases. Phytases are phosphatases produced by animals, plants, and microorganisms, notably Aspergillus niger, and are employed as animal feed additive, in chemical industry and for ethanol production. Given the industrial relevance of phytases produced by filamentous fungi, this work discusses the functional characterization of fungal phytase-coding genes/proteins, highlighting the physicochemical parameters that govern the enzymatic activity, the development of phytase super-producing strains, and key features for industrial applications.

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Investigation of the interaction between separate calcium feeding and phytase supplementation on growth performance, calcium intake, nutrient digestibility and energy utilisation in broiler starters

Cited by 22 publications

References 36 publications

Multi-carbohydrase enzymes improve feed energy in broiler diets containing standard or low crude protein

Multi-carbohydrase enzymes improve feed energy in broiler diets containing standard or low crude protein

Effect of Dietary Supplementation with Calcium, Phosphorus and Vitamin D3 on Growth Performance, Nutrient Digestibility, and Serum Biochemical Parameters of Growing Blue Foxes

Fungal phytases: from genes to applications

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