Growth performance, morphometric analysis of the intestinal mucosa and thyroid of broiler fed canola meal

Moraes, Pedro Valério Dutra de; Novelini, Liliane; Krabbe, Everton Luís; Kawski, Vicky Lilge; Nunes, Juliana Klug; Corcini, Carine Dahl; Varella, A.S.; Xavier, Eduardo Gonçalves

doi:10.1590/1678-4162-9080

Cited by 1 publication

(2 citation statements)

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Section: Introductionmentioning

confidence: 99%

“…But the presence of anti-nutrition factors in RSM, such as glucosinolates and other anti-nutritional ingredients, limit its usage in broiler diets. Although accumulated evidences on the effects of RSM addition on the growth performance of broilers are available [ 5 , 6 ], the results of which are inconsistent. In a previous study, it was reported that no negative effect on the growth performance of Cobb-500 broilers from 1–42 days of age was observed in response to the inclusion of RSM in diet up to 10% [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

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Effects of substitution of soybean meal with rapeseed meal and glutamine supplementation on growth performance, intestinal morphology, and intestinal mucosa barrier of Qiandongnan Xiaoxiang Chicken

et al. 2022

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Objective: The present study was to evaluate the effects of different rapeseed meal substitution (RSM) and glutamine (Gln) supplementation on growth performance, intestine morphology and intestinal mucosa barrier of broilers.Methods: Four hundred and twenty Qiandongnan Xiaoxiang Chicken at 1 day of age with similar weight were chosen and were randomly assigned into 7 groups, consisting of 10 replicates per group and 6 broilers per replicate. Three groups were provided with diets separately containing 0%, 10% and 20% rapeseed meal substitution (RSM), and the other four groups were fed with diets separately supplemented with 0.5% and 1% Gln based on the inclusion of 10% and 20% RSM. At 21 and 42 days of age, 10 broilers per group were chosen to collect plasma and intestinal samples for further analysis. Results:The results showed that 10% RSM decreased average daily feed intake (ADFI) and average daily weight gain (ADG) of broilers at 21 days of age (P<0.05). Furthermore, both ADFI and ADG of broilers at 21 and 42 days of age were decreased by 20% RSM, while feed conversion ratio (FCR) was increased (P<0.05). Besides, 10% RSM resulted in lower intestinal villus height and the ratio of villus height to crypt depth, deeper crypt depth (P<0.05), combined with the lower mRNA expressions of occludin, claudin-1 and ZO-1 in broilers at 21 days of age (P<0.05). Similar results were also observed in broilers at 21 and 42 days of age fed with 20% RSM. However, 1% Gln improved the growth performance of broilers fed with 10% and 20% RSM (P<0.05), ameliorated intestine morphology and elevated mRNA expressions of occludin, claudin-1 and ZO-1 (P<0.05). Conclusion:In conclusion, the increasing inclusion of RSM resulted in more serious effects on broilers, however, 1.0% Gln could reverse the negative effects induced by the inclusion of RSM.

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Section: Introductionmentioning

confidence: 99%