Effect of Dietary Aspergillus Xylanase on Nutrient Digestibility and Utilization, Growth Performance and Size of Internal Organs in Broiler Chickens Offered Maize-Soybean Meal Based-Diets

Oyeagu, C.E.; Mlambo, Victor; Muchenje, Voster

doi:10.3923/pjn.2019.852.865

Cited by 6 publications

(6 citation statements)

References 53 publications

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“…This confirms the influence of protease in nutrients availability for chickens. Many authors share the same view [49], [50], [51]. Indeed, Hajati et al [52] and Hajati [53] opined that enzyme supplementation might improve broiler performance by improving nutrient digestibility.…”

Section: Growth Performancementioning

confidence: 96%

Gut Micro-flora, Serum Bio-markers, and Growth Performance of Broiler Chickens Fed Supplemental Levels of Bacillus protease

2020

SETWM-20, ACBES-20 &Amp; EEHSS-20 Nov. 16-17, 2020 Johannesburg (SA)

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To maintain a high quality and low fibre content of broiler feeds may require an external influence, such as the Bacillus protease to overcome some of the potential limitations imposed by vegetable protein diets. There is paucity of information on serum biomarkers, and gut micro-flora composition of chickens fed dietary Bacillus protease. The objective was to test the effect of dietary Bacillus protease inclusion on gut micro-flora, serum bio-markers, and growth traits of chicken. A total of 300day -old -Cobb 500‖ chicks were randomly assigned to five dietary treatments with five replicates of 12 birds each. The treatments include; PROT0 (0 g/kg; control), PROT10 (1 g/kg), PROT15 (1.5 g/kg), PROT20 (2 g/kg) and PROT25 (2.5 g/kg). The results showed that serum protein and albumin increased (p<0.05) while aspartate aminotransferase (AST) and alanine aminotransferase (ALT) decreased (p<0.05), as the amount of Bacillus protease increased. Bacteria population did not differ (p>0.05). Daily feed intake and the feed intake at starter phase, finisher phase, and overall phase decreased (p<0.05) as the levels of protease increased. Birds fed PROT25 had the highest (p<0.05) weight gain and a better feed conversion ratio (FCR) throughout the feeding trial. It was concluded that 2.5g/kg Bacillus protease can be safely included for improved weight gain, FCR, carcass yield, retail cut yields and overall health status of chickens.

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Section: Growth Performancementioning

confidence: 96%

Gut Micro-flora, Serum Bio-markers, and Growth Performance of Broiler Chickens Fed Supplemental Levels of Bacillus protease

2020

SETWM-20, ACBES-20 &Amp; EEHSS-20 Nov. 16-17, 2020 Johannesburg (SA)

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“…The bacterial colony counts were calculated as colony-forming units per milliliters (CFU/ml) of caecal digesta (Formula 3). The counted data were transformed into logarithmic form log 10 CFU/ml (Oyeagu et al, 2019).…”

Section: Average Daily Body Weight Gain (G) =mentioning

confidence: 99%

Effects of Phytogenic Feed Additives on Body Weight Gain and Gut Bacterial Load in Broiler Chickens

D¹,

Ayele²,

Waktole³

et al. 2023

WVJ

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Phytogenic feed additives (PFAs) have promising importance in chicken production as antibiotic alternatives to balance chicken gut microorganisms and improve productivity. The objectives of this study were to evaluate the body weight gain (BWG) and gut bacterial load of broiler chicks fed on selected herbs. For this experiment, 360 unsexed one-day-old broiler chicks of Cobb 500 with an average weight of 40.74 g were randomly allocated into six treatment groups with three replicates of 20 chicks in each pen. The treatment 1 (T1) group was fed by a basal diet alone. Chickens of T2, T3, T4, T5, and T6 were fed the basal diet containing 1% of basil, lemongrass, peppermint, rosemary, and thyme leaves powder, respectively for 49 days. Body weight (BW), BWG, and average daily weight gain (ADWG) data were recorded every week and at the end of every phase. On days 21 and 42, three chickens from each replicate were slaughtered for microbiological analysis (pathogenic and normal flora) of cecum contents aseptically. The obtained result showed that chickens kept on T3 had significantly higher BW, BWG, and ADWG during the starter and grower phases. Significantly highest final BW was recorded during the finisher phase on T3 and T6. Chickens that consumed T3 and T6 had significantly higher overall BWG and ADWG. The lowest Escherichia coli counts were seen in chickens fed on rosemary (T5) on both days 21 and 42 of the experimental time. Similarly, the highest Lactobacilli counts were recorded on chicken fed on T5 (day 21) and T3 (day 42). On the other hand, almost all treatment herbs showed a higher Enterococcal count, with the highest recorded for T3 (day 21) and T6 (day 42). The present findings suggest that supplementing lemongrass and thyme leaf powder improves BW performance and gut microbial composition. Likewise, rosemary leaf powder enhances the beneficial microbial composition and reduces pathogenic bacteria. However, the underlying detailed biological mechanisms and dose standardization of these herbs for inclusion in the diet of broiler chickens need to be studied further.

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“…Similarly, indigenous chicken hens fed with a diet containing 18% MWM had increased average daily gains (ADG) with a lower (better) feed conversion ratio (FCR) [16]. A lower FCR points to high feed efficiency [65], which could be attributed to better ingredient combination, digestibility, and absorption of nutrients [66]. Contrary to these results, the feed consumption, ADG, FCR, and dressing percentage of guinea fowls fed with 4.5% MWM did not differ from those fed the control diet [51].…”

Section: Feed Value Of Mopane Worm Mealmentioning

confidence: 99%

Mopane Worm (Gonimbrasia belina Westwood) Meal as a Potential Protein Source for Sustainable Quail Production: A Review

2022

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Fast-growing and highly adaptable avian birds such as quail (Coturnix coturnix) possess great potential to meet the growing demand for animal protein by the rapidly increasing human population, and would contribute immensely to global food production and nutritional security. However, overreliance on conventional protein sources such as fish and soybean meals during the formulation of quail diets is economically and environmentally unsustainable. Alternatively, insect-based protein sources such as Gonimbrasia belina, commonly known as mopane worm (MW), can be used to increase quail production due to their high biological value and low feed-food competition. Indeed, MW is highly nutritious, with an average protein content of 55% and a well-balanced amino acid profile. Thus, its incorporation in quail diets could provide great potential to alleviate nutritional deficiencies in quail production and allow for their sustainable intensification. However, there are limited studies on the effect of partial or complete replacement of conventional protein sources with mopane worm meal (MWM) in quail diets. This paper reviews the nutritional profile and use of the MW as a protein source, as well as its potential future prospects in poultry diets. Finally, we postulate that mass production of this insect-based protein source and its sustainability would be an inventive strategy to develop a profitable quail business.

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Effect of Dietary Aspergillus Xylanase on Nutrient Digestibility and Utilization, Growth Performance and Size of Internal Organs in Broiler Chickens Offered Maize-Soybean Meal Based-Diets

Cited by 6 publications

References 53 publications

Gut Micro-flora, Serum Bio-markers, and Growth Performance of Broiler Chickens Fed Supplemental Levels of Bacillus protease

Gut Micro-flora, Serum Bio-markers, and Growth Performance of Broiler Chickens Fed Supplemental Levels of Bacillus protease

Effects of Phytogenic Feed Additives on Body Weight Gain and Gut Bacterial Load in Broiler Chickens

Mopane Worm (Gonimbrasia belina Westwood) Meal as a Potential Protein Source for Sustainable Quail Production: A Review

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