&lt;b&gt;Influence of xylanase and vitamin A in wheat-based diet on performance, nutrients digestibility, small intestinal morphology and digesta viscosity in broiler chickens

Khoramabadi, Vahid; Akbari, Mohammad Reza; Khajali, Fariborz; Noorani, Hossein; Rahmatnejad, E.

doi:10.4025/actascianimsci.v36i4.23910

Cited by 11 publications

(10 citation statements)

References 14 publications

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“…Relative length (cm/100 g BW) the current study also indicated that xylanase supplementation improved ileal digestibility of CP and Ca, and AME of feed. Positive effects of xylanase on nutrient digestibility have been reported by other authors (Esmaeilipour et al 2011;Khoramabadi et al 2014). The NSPs in the cell walls of cereals encapsulate starch and protein and also increase the viscosity of digesta (Abdollahi et al 2011).…”

Section: Treatmentsmentioning

confidence: 61%

Effects of feed form and xylanase supplementation on performance and ileal nutrients digestibility of heat-stressed broilers fed wheat–soybean diet

Hosseini

Afshar

2016

Journal of Applied Animal Research

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Section: Treatmentsmentioning

confidence: 61%

Effects of feed form and xylanase supplementation on performance and ileal nutrients digestibility of heat-stressed broilers fed wheat–soybean diet

Hosseini

Afshar

2016

Journal of Applied Animal Research

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“…Low levels of vitamin A (1,000 IU kg −1 ) showed the best results, differing from the results found in this study for broilers at 21 d of age. Khoramabadi et al. (2014) , evaluating wheat-based diets with different vitamin A supplementation with or without xylanase inclusion, found no effect of treatment on the FI of birds at 21 d of age.…”

Section: Discussionmentioning

confidence: 96%

Interactions between lipid source and vitamin A on broiler performance, blood parameters, fat and protein deposition rate, and bone development

Savaris¹,

Souza

Wachholz³

et al. 2021

Poultry Science

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A total of 2622 male broilers were distributed in a 2 × 5 factorial design, using 2 lipid sources (soybean oil and palm fat), 5 levels of vitamin A supplementation (0, 3,000, 6,000, 12,000, and 24,000 IU kg −1 ), with 10 replicates, and also 1 control diet ( CD ) for each lipid source used (7 replicates), each experimental unit being composed of 23 birds. During the first 21 d (how were the birds fed) and from 22 to 42 d of age, a redistribution of the treatments was carried out in a 2 × 2 × 5 factorial design: half of the repetitions of each treatment received the diet of the initial treatment, and the others received the CD with its type of lipid source. In the phase from 1 to 21 d of age, the effect of lipid source on feed intake ( FI ) and feed conversion ratio ( FCR ), and the effect of vitamin supplementation on FI and weight gain ( WG ) were observed, with a quadratic response for both variables. At 42 d of age, the lipid source and vitamin A level influenced the FI, whereas the WG and FCR showed interactions between period and the level of vitamin A supplementation. Neither lipid source resulted in blood parameters out of the typical pattern for birds, and the same was observed in relation to dietary vitamin A supplementation. From 1 to 21 d of age, a vitamin A supplementation of 15,585 IU kg −1 was estimated, and at 42 d, 15,527 IU kg −1 and 15,148 IU kg −1 were estimated for the periods 1 to 21 d and 1 to 42 d, respectively.

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“…Therefore, the need for alternative protein sources for livestock is becoming increasingly urgent [ 2 ]. Finding alternative sources of poultry feedstuffs is a recent research topic that is still under investigation by nutrition researchers in an attempt to find a balance between high performance and low cost [ 3 ]. Makkar et al [ 4 ] mentioned that insects are good candidates to face the global challenge of finding new protein sources at a low cost, especially when taking into account their nutritional value and low breeding space requirements.…”

Section: Introductionmentioning

confidence: 99%

Black soldier fly defatted meal as a dietary protein source for broiler chickens: Effects on growth performance, blood traits, gut morphology and histological features

Dabbou

Gai

Biasato

et al. 2018

J Animal Sci Biotechnol

155

141

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BackgroundThe present study has evaluated the effects of different inclusion levels of a partially defatted black soldier fly (Hermetia illucens L.; HI) larva meal on the growth performance, blood parameters and gut morphology of broiler chickens. A total of 256 male broiler chickens (Ross 308) were reared from d 1 to d 35 and assigned to 4 dietary treatments (8 replicates/treatment and 8 birds/replicate). HI larva meal was included at increasing levels (0, 5%, 10% and 15%; HI0, HI5, HI10 and HI15, respectively) in isonitrogenous and isoenergetic diets formulated for 3 feeding phases: starter (1–10 d), growing (10–24 d) and finisher (24–35 d). Two birds per pen were slaughtered at d 35 and morphometric investigations and histopathological alterations were performed.ResultsThe live weight (LW) showed linear and quadratic responses to increasing HI larva meal (maximum for HI10 group). Average daily gain (ADG) showed a linear and quadratic responses to HI meal (maximum for HI10 group) during starter and growing periods. A linear decrease was observed for ADG during the finisher period. The daily feed intake (DFI) showed a linear and quadratic effect during the starter period (maximum for HI10 group). Linear and quadratic responses were observed for the feed conversion ratio (FCR) in the growing period and for the whole period of the experiment. The FCR showed a linear response in the finisher period (maximum for HI15). No significant effects were observed for the blood and serum parameters, except for the phosphorus concentration, which showed linear and quadratic responses as well as glutathione peroxidase (GPx) activity, the latter of which showed a linear response. The HI15 birds showed a lower villus height, a higher crypt depth and a lower villus height-to-crypt depth ratio than the other groups.ConclusionsIncreasing levels of dietary HI meal inclusion in male broiler chickens may improve the LW and DFI during the starter period, but may also negatively affect the FCR and gut morphology, thus suggesting that low levels may be more suitable. However, no significant effects on the haematochemical parameters or histological findings were observed in relation to HI meal utilization.

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<b>Influence of xylanase and vitamin A in wheat-based diet on performance, nutrients digestibility, small intestinal morphology and digesta viscosity in broiler chickens

Cited by 11 publications

References 14 publications

Effects of feed form and xylanase supplementation on performance and ileal nutrients digestibility of heat-stressed broilers fed wheat–soybean diet

Effects of feed form and xylanase supplementation on performance and ileal nutrients digestibility of heat-stressed broilers fed wheat–soybean diet

Interactions between lipid source and vitamin A on broiler performance, blood parameters, fat and protein deposition rate, and bone development

Black soldier fly defatted meal as a dietary protein source for broiler chickens: Effects on growth performance, blood traits, gut morphology and histological features

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