A dose-response study with the feed enzyme beta-mannanase in broilers provided with corn-soybean meal based diets in the absence of antibiotic growth promoters

Jackson, Mark; Geronian, K.; Knox, A.; McNab, J. M.; ΜcCartney, Εlinor

doi:10.1093/ps/83.12.1992

Cited by 110 publications

(90 citation statements)

References 22 publications

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“…Lesson et al (1996); Augelovicova and Michalik (1997) on the other hand reported increases in feed intake as a result of enzyme supplementation due to increased nutrient digestibility. The improved feed conversion due to enzyme supplementation in the present study is in agreement with earlier findings (Wang et al, 1997;Huazhong et al, 1999;Jackson et al, 2004;Rahman et al, 2005;Zou et al, 2006;Onu et al, 2011). These researchers reported that exogenous enzymes greatly improved the feed conversion ratio of broiler chicks fed enzyme supplemented diet.…”

Section: Resultssupporting

confidence: 93%

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

2012

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ADDITIONAL KEYWORDSBroiler performance. PALABRAS CLAVE ADICIONALESRendimiento del pollo. SUMMARYTwo hundred and sixteen unsexed day-old Cobb broilers of a commercial strain were used to study the effect of replacement of soybean meal (SBM) by cassava leaf:blood meal mix (CLM:BM) with or without enzyme supplementation on broiler growth and performance. The birds were divided into 6 groups of 36 birds each after balancing for live weight. Each group was further sub-divided into 6 replicates of 6 birds each. CLM:BM replaced SBM at 0, 25 and 50 % on weight for weight basis. The resulting three dietary combinations were supplemented with a commercial enzyme (Maxigrain ® ) at the rates of 0 and 100 ppm thus resulting in 6 dietary treatments. The six groups of 36 birds were randomly allotted to the six experimental diets. Feed and water were provided free choice during the 56 days experimental period during which data were collected on performance, nutrient retention, feed transit time and carcass characteristics of birds. Replacement of SBM with CLM:BM mix had no effect (p>0.05) on weight gain (WG), feed intake (FI), feed: gain ratio (F:G), crude protein (CP), ether extract (EE) and crude fibre retention (CF), dressing percentage, breast cut, drumstick, thigh liver and kidney weights but significantly (p<0.05) reduced intestinal transit time (ITT) and abdominal fat while increasing gizzard and caecum weight. Enzyme supplementation however significantly (p<0.05) improve WG and reduced F:G, improved (p>0.05) nutrient retention, dressing and abdominal fat percentage but had no effect on FI. No mortality was recorded in the course of this study. Enzyme supplementation significantly (p<0.05) reduced gizzard and caecum weights. It was concluded that in broiler feeding CLM:BM mix can effectively replace 50 % SBM without adverse effect on the birds. Supplementation of diets with enzyme led to further improvement in performance of broilers. RESUMENDoscientos dieciseis pollos Cobb, de un día, no sexados, fueron empleados para estudiar el efecto de la sustitución de la harina de soja (SBM) por una mezcla de hojas de yuca:harina de sangre (CLM:BM), con o sin adicción de enzimas, sobre el crecimiento y productividad de los broilers. Se formaron 6 grupos de 36 aves cada uno después de equilibrarlas en función del peso vivo. Cada grupo fue después subdividido en 6 repeticiones de 6 aves cada una. La mezcla CLM:BM se empleó para sustituir a la SBM en proporciones de 0, 25 y 50 % (peso/peso). Las tres combinaciones dietarias resultantes fueron suplementadas con un enzima comercial (Maxigrain ® ) en proporciones de 0 y 100 ppm resultando así 6 tratamientos dietéticos. Los seis grupos de 36 aves fueron aleatoriamente asignados a las seis dietas experimentales. El pienso y el agua fueron suministrados a voluntad durante los 56 días de periodo experimental durante el cual se obtuvieron los datos relativos a productividad, retención de nutrientes, tiempo de tránsito del pienso y caracArchivos de zootecnia vol. 62, núm. 238, p. 276. ADEY...

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Section: Resultssupporting

confidence: 93%

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

2012

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“…Whereas Jackson et al (2003Jackson et al ( , 2004 and Daskiran et al (2004) reported beneficial effects on BWG and FCR during starter and grower phases of growth from 80 or 110 unit/g β-mannanase supplementation. Similarly, Kidd et al (2001) fed broilers corn and soybean meal based diets with or without anα-galactosidase (112 g/ton) enzyme.…”

Section: Discussionmentioning

confidence: 98%

Effects of Emulsifier and Multi-enzyme in Different Energy Densitydiet on Growth Performance, Blood Profiles, and Relative Organ Weight in Broiler Chickens

Cho¹,

Zhao²,

Kim³

2012

JAS

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This study was conducted to determine the effects of emulsifierand multi-enzyme in different energy density diet on growth performance, blood profiles, and relative organ weight in broiler chickens. A total of five hundred and forty2-d-oldmale Ross broilers (BW of 42.4 ±1.3 g) wereused in a 35-d experiment and randomly divided into 5 treatment groups: 1) NC [low energy diet, 3% tallow, ME = 3000 (1 to 21 d) and 3100 kcal/kg (22 to 35 d)], 2) PC [high energy diet, 5.5% soybean oil, ME = 3150 (1 to 21 d) and 3250 kcal/kg (22 to 35 d))], 3) P1 (NC+0.1% multi-enzyme), 4) P2 (NC + 0.05% emulsifier), 5) P3 (NC + 0.1% multi-enzyme + 0.05% emulsifier). Multi-enzymecontained α-galactosidase, galactomannase, xylanase, and β-glucanase. Emulsifier was a commercial product named Prosol ® which wassodium stearoyl-2-lactylate.There were 9 replications per treatment with 12 birds per pen. From d 0 to 21, body weight gain (BWG) in PC and P1 treatments increased (P < 0.05) compared with NC treatment. From d 22 to 35, feed intake (FI) was greater (P < 0.05) in P3 treatment than PC treatment. On d 35, triglyceride concentration in PC, P1 and P3 treatments was greater (P < 0.05) compared with NC treatment. No differences were observed on white blood cell (WBC), red blood cell (RBC) and glucose concentration. The relative weight of the spleen was significantly decreased (P < 0.05) in P3 treatment compared with PC treatment. Furthermore, the relative weight of the bursa of Fabricius in P3 treatment was higher (P < 0.05) than PC, P1 and P2 treatments. In conclusion, the results of this study indicate that emulsifier andmulti-enzymein low-density diets can partially improve growth performance, triglyceride, and relative organ weight in broiler chickens, which can counterpart the negative effects caused by the decreased nutrient concentration.

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“…Lee et al (2005) reported that GM can be used at up to 5% with β-mannanase enzyme in broilers. Jackson et al (2004) reported that Hemicell improved weight gain and FCR of broilers.…”

Section: Discussionmentioning

confidence: 98%

Effects of Dietary Inclusion of Guar Meal Supplemented by β-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood Cells

Ehsani¹,

Torki²

2010

American Journal of Animal and Veterinary Sciences

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Problem statement: Using Guar Meal (GM) in poultry diets has being limited because of having β-mannan, one of the Nonstarch Polysaccharides (NSP). In this study we try evaluating effects of enzyme supplementation of GM-included diets on productive performance of laying hens. Approach: A total number of 144 Lohmann LSL-Lite hens were divided in 24 cages (n = 6). Based on a 3 × 2 factorial arrangement of treatments, six iso-caloric and iso-nitrogenous diets including 3 levels of GM (0. ) with and without enzyme (Hemicell® a β-mannanase-based enzyme, 0.0 and 0.6 g kg ) were assigned to hens in 4 cages (replicates). Data was analyzed based on completely randomized design using GLM procedure of SAS. Results: Dietary GM inclusion significantly affected on Egg Production (EP) on weeks 2, 4 and 6 as well as the overall trail period. Hens fed the GM-included diets did have decreased EP compared to hens fed the control diet. Almost the same trend was observed in terms of Egg Mass (EM); so that hens fed the GM-included diets showed decreased EM compared to the hens fed the control diet. Enzyme supplementation did not have significant effect on EP in the present experiment, but EM was significantly improved in the hens fed the β-mannanase-supplemented diets on weeks 3, 6 and the overall experimental period. Dietary inclusion GM increased Feed Conversion Ratio (FCR) of laying hens compared to the hens fed the control diets on weeks 2, 4, 6 and overall trial period. Conclusion/Recommendations: Including GM in laying hens' diets more than 3% may decrease productive performance. Supplementing cornsoybean or corn-soybean-GM diets by β-mannanase would have beneficial effects on performance of hens especially in terms of FCR and EP.

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A dose-response study with the feed enzyme beta-mannanase in broilers provided with corn-soybean meal based diets in the absence of antibiotic growth promoters

Cited by 110 publications

References 22 publications

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

Effects of Emulsifier and Multi-enzyme in Different Energy Densitydiet on Growth Performance, Blood Profiles, and Relative Organ Weight in Broiler Chickens

Effects of Dietary Inclusion of Guar Meal Supplemented by β-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood Cells

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A dose-response study with the feed enzyme beta-mannanase in broilers provided with corn-soybean meal based diets in the absence of antibiotic growth promoters

Cited by 110 publications

References 22 publications

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

Sustitución de la harina de soja con mezcla hojas de yuca:harina de sangre, en dietas de pollos con o sin sumplementación de enzimas

Effects of Emulsifier and Multi-enzyme in Different Energy Densitydiet on Growth Performance, Blood Profiles, and Relative Organ Weight in Broiler Chickens

Effects of Dietary Inclusion of Guar Meal Supplemented by &beta;-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood Cells

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Effects of Dietary Inclusion of Guar Meal Supplemented by β-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood Cells