scholarly journals The effect of exogenous enzymes on the performance and digestibility of nutrients in broiler

2018 ◽  
Vol 39 (2) ◽  
pp. 711 ◽  
Author(s):  
Thiago Dos Santos Andrade ◽  
Ricardo Vianna Nunes ◽  
Lucas Wachholz ◽  
Idiana Mara da Silva ◽  
Dimitri Moreira de Freitas
Keyword(s):  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Ileal Digestibility ◽  
Protease Enzyme ◽  
Exogenous Enzymes ◽  
Xylanase Enzyme

Here we tested how feeding with exogenous enzymes affects the performance, carcass yield, and ileal digestibility in broilers from 21- to 42-days-old. The study included 1008 male broilers randomly distributed into six diets: positive control (PC), corn and soybean meal containing all the nutritional requirements; negative control (NC), with a 120 kcal.kg-1 reduction in metabolizable energy relative to the PC; enzyme complex one (NC + 100 ppm of endo-1,4-beta-xylanase); enzyme complex two (NC + 200 ppm of xylanase, amylase and protease); enzyme blend one (NC + 100 FXU kg-1 of xylanase and 200 FXU kg-1 of amylase); and enzyme blend two (NC + 100 FXU kg-1 of xylanase and 300 FXU kg-1 of amylase). The enzyme complex two (CN + 100 FXU.kg de xilanase e 300 FXU.kg de amilase) and enzyme blend two (NC + 100 FXU kg-1 of xylanase and 300 FXU kg-1 of amylase) had greater weight gain, feed conversion, carcass yield, and digestibility of nutrients than the NC (P < 0,05). We found that enzyme complex two and enzyme blend two valued their nutritional matrix promoting better performance and digestibility of broilers.

scholarly journals Performance and physiological parameters in broilers fed different enzyme complexes

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2765
Author(s):  
Thiago Dos Santos Andrade ◽  
Ricardo Vianna Nunes ◽  
Idiana Mara da Silva ◽  
Lucas Wachholz ◽  
Vitor Barbosa Fascina
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Abdominal Fat ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Blood Profile ◽  
Carcass Yield ◽  
Protease Enzyme

The effects of enzyme supplementation on the performance, yield, and blood profile of broilers fed corn and soybean diets from 1 to 42 days of age were evaluated. A total of 960 male broilers were used, distributed in a completely randomized design, with six treatments and eight replications. Two diets were used: a positive control formulated to meet the birds’ nutritional requirements (Diet 1) and a negative control diet with reduction of 150 kcal.kg-1 of metabolizable energy (Diet 2) and 12% amino acid in the initial phase and 18% during the growing and finishing phases. Further diets were based on the negative control with enzymes: enzyme complex 1, composed of 125 g ton-1 protease; enzyme complex 2, composed of 100 g ton-1 amylase, protease, and xylanase; enzyme complex 3, composed of 500 g ton-1 amylase, protease, and xylanase; and enzyme complex 4, composed of 125 g ton-1 protease and 500 g ton-1 beta-mannanase. Enzymatic supplementation did not improve performance during the initial and growing phases due to nutritional imbalance, resulting in the worst weight gain and feed conversion during the finishing phase. Carcass yield, leg yield, abdominal fat, and pancreas were altered by enzymatic supplementation. Triglyceride levels influenced abdominal fat deposition, and the serum levels of albumin and alanine aminotransferase were altered by enzymatic supplementation. Enzymatic supplementation was not effective in restoring broiler performance, carcass yield, and cuts, with changes in the serum biochemical profile of the broiler chickens.

scholarly journals Performance and physiological parameters in broilers fed different enzyme complexes

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2765 ◽  
Author(s):  
Thiago Dos Santos Andrade ◽  
Ricardo Vianna Nunes ◽  
Idiana Mara da Silva ◽  
Lucas Wachholz ◽  
Vitor Barbosa Fascina
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Abdominal Fat ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Blood Profile ◽  
Carcass Yield ◽  
Protease Enzyme

The effects of enzyme supplementation on the performance, yield, and blood profile of broilers fed corn and soybean diets from 1 to 42 days of age were evaluated. A total of 960 male broilers were used, distributed in a completely randomized design, with six treatments and eight replications. Two diets were used: a positive control formulated to meet the birds’ nutritional requirements (Diet 1) and a negative control diet with reduction of 150 kcal.kg-1 of metabolizable energy (Diet 2) and 12% amino acid in the initial phase and 18% during the growing and finishing phases. Further diets were based on the negative control with enzymes: enzyme complex 1, composed of 125 g ton-1 protease; enzyme complex 2, composed of 100 g ton-1 amylase, protease, and xylanase; enzyme complex 3, composed of 500 g ton-1 amylase, protease, and xylanase; and enzyme complex 4, composed of 125 g ton-1 protease and 500 g ton-1 beta-mannanase. Enzymatic supplementation did not improve performance during the initial and growing phases due to nutritional imbalance, resulting in the worst weight gain and feed conversion during the finishing phase. Carcass yield, leg yield, abdominal fat, and pancreas were altered by enzymatic supplementation. Triglyceride levels influenced abdominal fat deposition, and the serum levels of albumin and alanine aminotransferase were altered by enzymatic supplementation. Enzymatic supplementation was not effective in restoring broiler performance, carcass yield, and cuts, with changes in the serum biochemical profile of the broiler chickens.

scholarly journals ENZYME COMPLEX SUPPLEMENTATION ON THE PERFORMANCE OF SWINE IN GROWTH AND FINISHING PHASES

2018 ◽  
Vol 31 (3) ◽  
pp. 748-758 ◽  
Author(s):  
NATÁLIA YOKO SITANAKA ◽  
FÁBIO ENRIQUE LEMOS BUDIÑO ◽  
SIMONE RAYMUNDO DE OLIVEIRA ◽  
ANDREIA DONIZETE CHAGAS VILAS BOAS ◽  
JOSÉ EVANDRO DE MORAES
Keyword(s):  
Energy Content ◽  
Block Design ◽  
Control Diet ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Energy Reduction ◽  
Daily Weight Gain ◽  
Enzyme Complex ◽  
Feed Conversion

ABSTRACT The objective of this study was to evaluate the use of an enzyme complex-α-amylase, ß-glucanase, phytase, cellulase, xylanase and protease-in the feed of swine in growing and finishing phases, by assessing their performance (daily weight gain, daily feed intake, and feed conversion), dry matter, crude protein, and crude energy apparent digestibility, and the feed costs. Eighty pigs-castrated males, and females-of approximately 63 days of age and initial weight of 20.18±1.98 kg were distributed in a 5×2 factorial arrangement (diet × sex), in a randomized block design, with eight replications. The treatments used were: positive control diet consisted of 3,300 kcal/kg in the growth-I phase, and 3,250 kcal/kg in the growth-II and finishing phases; negative control diet with energy reduction of 85 kcal/kg of metabolizable energy (ME) (NC85); NC85 diet with addition of enzyme complex (EC85); negative control diet with energy reduction of 100 kcal/kg ME (NC100); NC100 diet with addition of enzyme complex (EC100). The addition of the enzyme complex to the diet with energy reduction of 100 kcal/kg ME increased the digestible protein content of the diet for the swine in the growth-II phase. The addition of the enzyme complex to the diet with energy reduction of 85 and 100 kcal/kg ME increased the digestible energy content of the diets for the swine in the finishing phase. The use of enzyme complex in diets with reduction of 85 kcal/kg ME for male swine in growing and finishing phases is recommended for improving feed conversion and economic efficiency during the growth-I phase. The use of enzyme complex is not justified for female swine.

scholarly journals Effect of different phytases on the performance, nutrient retention and tibia composition in broiler chickens

2013 ◽  
Vol 56 (1) ◽  
pp. 1028-1038 ◽  
Author(s):  
A. Ptak ◽  
D. Józefiak ◽  
B. Kierończyk ◽  
M. Rawski ◽  
K. Żyła ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Nutrient Retention ◽  
Nutrient Utilization ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
E Coli ◽  
Performance Response ◽  
Apparent Metabolizable Energy

Abstract. The effect of different phytases on the performance response, nutrient utilization and tibia characteristics of chickens was investigated. The five pelleted diets were the following: positive control (PC) with added monocalcium phosphate; negative control (NC) formulated with equivalency values of phytase for Ca and digestible P; and three further diets where different phytases were individually added to the NC diet at 500 FTU/kg. The phytases were derived either from Aspergillus (phytase I), or E. coli (phytases II and III). Compared to PC, the performance parameters, as well as apparent metabolizable energy (AMEn), mineral retention, bone breaking force and tibia mineral content were suppressed by the reduction of dietary Ca and digestible P. All phytases enhanced the overall body weight gains and feed conversion ratio in comparison with NC, but none outperformed PC. Only phytase II improved AMEn compared to NC and PC group. However only phytase I outperformed NC group in terms of mineral retention and P retention was higher than phytase II and III. No significant differences were observed in fat digestibility and N retention. Bone strength among phytases did not differ and all improved this parameter compared to the NC diet. However, even though all phytases enhanced tibia minerals content, the improvement was less pronounced with phytase III. Moreover, the differences in all analysed tibia minerals between phytase III and II were significant suggesting that even among 6-phytases derived from and expressed in the same organism, different efficacy or mode of action can occur.

scholarly journals Xylanase and β-glucanase in maize- and soybean meal-based diets for broilers

2020 ◽  
Vol 41 (6supl2) ◽  
pp. 3259-3274
Author(s):  
Thiago Ferreira Diana ◽  
◽  
Luiz Fernando Teixeira Albino ◽  
Horácio Santiago Rostagno ◽  
Bruno Figueiredo de Almeida ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Production Efficiency ◽  
Efficiency Index ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Experimental Unit ◽  
Feed Conversion ◽  
Randomized Design ◽  
Completely Randomized Design

The objective of this study was to evaluate the effect of adding different xylanase and ?-glucanase enzyme blends to maize- and soybean meal-based diets on performance and energy metabolizability in broilers. Two experiments were carried out with broilers of the COBB 500 strain. In the first experiment, 1960 chicks were assigned to a completely randomized design with a 2 × 3 + 1 factorial arrangement, totaling seven treatments, namely, T1- Positive control (PC); T2 - Negative control 1 (NC1; PC minus 200 kcal kg-1 ME); T3 - NC1 + Blend A; T4 - NC1 + Blend B; T5 - Negative control 2 (NC2; PC minus 167 kcal kg-1 ME and 5% amino acids); T6 - NC2 + Blend A; and T7 - NC2 + Blend B. Fourteen replicates were used per treatment and 20 birds per experimental unit. The parameters evaluated at 21 and 42 days of age were weight gain (WG), feed intake (FI) and feed conversion (FC). At 42 days, production efficiency index (PEI), viability and the yields of cuts were also calculated. Birds that received diets with a reduced nutritional value showed a reduction in WG and PEI and worsened FC as compared those of PC treatment (p < 0.05). However, the birds that consumed the NC2 diet with Blend B exhibited a similar WG to those in PC group (p > 0.05) from 1 to 21 days of life. For the yield of thigh + drumstick, the factors were statistically similar (p > 0.05) to those observed in the PC birds. In the second experiment, 432 fourteen-day-old chicks were distributed in a completely randomized design with seven treatments, with eight replicates per treatment and six birds per experimental unit. The apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) values were determined. Overall, the NC2 diet with Blend B provided the highest AME and AMEn values; however, NC1 with the same enzyme blend was the treatment which provided the lowest values. The addition of xylanase and ?-glucanase enzyme blends to maize- and soybean meal-based diets improves WG at 21 days as well as PEI in broilers; however, it does not influence the yield of cuts. Enzymes (Blend B) improve the energy metabolization of broiler diets with reduced energy and amino acid levels.

scholarly journals Growth performance and carcass yield of broiler chickens in response to carbohydrases and its association with phytase

2019 ◽  
Vol 71 (3) ◽  
pp. 983-989
Author(s):  
G.V. Dessimoni ◽  
N.K. Sakomura ◽  
D.C.Z. Donato ◽  
L. Soares ◽  
M.F. Sarcinelli ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Broiler Chicken ◽  
Positive Control ◽  
Negative Control ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Randomized Design ◽  
Carcass Parameters ◽  
Completely Randomized Design

ABSTRACT An experiment was conducted to evaluate broiler chicken performance and carcass yield in response to carbohydrase supplementation (Xylanase and Betaglucanase; XB) and association of carbohydrase and phytase (PHY). A total of 1,920 day-old male broiler chicks (Cobb 500) were distributed in a completely randomized design with 8 treatments and 8 replicates each, allocated in 64 pens with 30 chicks each. The treatments were: Positive Control (PC); Negative Control (NC): reduced ME [-120kcal/kg (Starter) and -170kcal/kg (Finisher)]; NC + XB [50g/ton]; NC + XB [100g/ton]; NC + XB [150g/ton]; NC + XB [50g/ton] + PHY [100g/ton]; NC + XB [100g/ton] + PHY [100g/ton]; NC + XB [150g/ton] + PHY [100g/ton]. The inclusion of XB (150) and XB (50, 100, and 150) associated with phytase increased feed intake than positive control when considering the total rearing phase. The feed conversion ratio of all broilers fed diets with energy reduction were worse than positive control, even with the addition of enzymes, and did not differ between them. There was no significant effect of treatments on carcass parameters.

scholarly journals Enzyme complex and Saccharomyces cerevisiae in diets for broilers in the initial phase

2018 ◽  
Vol 19 (2) ◽  
pp. 193-206 ◽  
Author(s):  
Regina Fialho de Sousa ◽  
Leilane Rocha Barros Dourado ◽  
Edna Teles dos Santos ◽  
Daniel Biagiotti ◽  
Leonardo Atta Farias ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Initial Phase ◽  
Control Diet ◽  
Positive Control ◽  
Experimental Unit ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Carcass Yield ◽  
Randomized Design

SUMMARY This study aimed at evaluating the use of exogenous enzymes in diets with Saccharomyces cerevisiae and their impact on zootechnical performance, carcass yield, intestinal histomorphometry and of broiler diets in the initial phase. A completely randomized design was used in a 2×3 + 1 factorial arrangement, with two levels of enzyme complex (EC), (0 and 200g / ton), three yeast levels (0, 6 and 12%) and a control diet, making up seven treatments, with five replicates of 20 broilers per experimental unit. We evaluated the performance (feed intake, weight gain and feed conversion ratio), carcass yield and cuts, histomorphometry of the small intestine (height, circumference and width of villi, height and width of the crypt, thickness of the intestinal muscle wall and villi/crypt relationship). From 1 to 7 and 1 to 21 days, the inclusion of yeast led to reduced broiler performance. At 21 days, the addition of EC resulted in an increase of (p <0.05) in the thickness of the muscular wall of the duodenum and decreased the width of the crypt in the ileum. The 12% level of yeast without the EC provided a thicker jejunum intestinal muscle wall when compared to the positive control. There was no significant effect on carcass yield and cuts between treatments. In conclusion, the inclusion of yeast reduces performance from 1-21 days. The enzyme complex and yeast does not change the performance or carcass yield, however, it does bring benefits to the intestinal mucosa.

scholarly journals Use of emulsifier and lipase in feeds for broiler chickens

2019 ◽  
Vol 40 (6Supl2) ◽  
pp. 3181 ◽  
Author(s):  
Lennon Santos de Oliveira ◽  
Eric Márcio Balbino ◽  
Tamiris Natalice Santos Silva ◽  
Lin Ily ◽  
Tatiana Cristina da Rocha ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Relative Weight ◽  
Positive Control ◽  
Negative Control ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Dry Matter Digestibility ◽  
Intestinal Length ◽  
Liver And Pancreas ◽  
Metabolisable Energy

The objective of this study was to evaluate the effect of exogenous emulsifier and lipase in diets on performance, digestibility, and organ biometry of broiler chickens. A completely randomised design with seven treatments and seven replications was adopted. The treatments were as follows: T1 (positive control; PC): 3000, 3100, 3200, and 3250 Kcal of metabolisable energy (ME) kg-1 of diet for phases 1 to 10, 11 to 21, 22 to 31, and 32 to 37 days, respectively; T2: PC with reduction in ME of 30 Kcal kg-1 of diet; T3: PC with reduction in ME of 60 Kcal kg-1 of feed; T4 (negative control; NC): PC with reduction in ME of 90 Kcal kg-1 of feed; T5: NC with inclusion of exogenous lipase (10 000 U kg-1); T6: NC with inclusion of emulsifier (250 g t-1); and T7: NC with inclusion of lipase (10 000 U kg-1) and emulsifier (250 g t-1) in the period from 1 to 37 days of rearing. Performance characteristics (weight gain (WG), feed intake (FI), and feed conversion (FC)), carcass yield, cut yield, the relative weight of abdominal fat and organs (small intestine, liver, and pancreas), and relative intestinal length, in addition to dry matter digestibility (CDADM), ethereal extract (CDAEE), crude metabolisable energy (CMACE), and apparent metabolisable energy (AME) of the diets, were evaluated. In the initial phase, the CDAEE was higher for the PC group than for the emulsifier + lipase group. The AME determined in the final phase for the group supplemented with an emulsifier was higher by approximately 50 Kcal (EM) than the NC group. The WG of the lipase group was similar to that of the PC group. However, the groups with emulsifier and emulsifier + lipase showed a lower WG than the PC group. The additives used did not recover the FC to the same level observed in the PC group. The reduction in ME of 90 Kcal kg-1 generated a lower WG and worse FC. The use of both an emulsifier and lipase together produced results like to the PC group. The biometrics of the organs and the carcass yield and cuts were not influenced by diets. Thus, it can be concluded that the inclusion of lipase and an emulsifier improves the performance of broilers given diets with reduced energy, although it does not improve the lipid utilisation of the diets.

scholarly journals Effect of different levels of supplementary alpha-amylase in finishing broilers

2019 ◽  
Vol 42 ◽  
pp. e47546
Author(s):  
Solange de Faria Castro ◽  
Antonio Gilberto Bertechini ◽  
Eduardo Machado Costa Lima ◽  
Alisson Hélio Sampaio Clemente ◽  
Verônica Gabriela Gonçalves Ferreira ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Alpha Amylase ◽  
Feed Conversion ◽  
Carcass Parameters ◽  
Randomized Experimental Design ◽  
Different Levels

The objective of this study was to investigate the effects of alpha-amylase supplementation on performance and carcass and cuts yield in broilers during finishing phase (21 to 42 days). A completely randomized experimental design with six treatments and eight replications was used: Positive Control (PC): no enzyme; Negative control (NC): without enzyme formulated with 6.34% less energy (- 6.34% ME); NC1: with 250 g ton-1 of alpha-amylase; NC2: with 500 g ton-1 of alpha-amylase; NC3: with 750 g ton-1 of alpha-amylase; NC4: with 1000 g ton-1 of alpha-amylase. Significant differences in weight gain, feed intake and feed conversion were reported with the inclusion of alpha-amylase. The NC treatment with inclusion of amylase provided improvement values of weight gain, feed conversion and feed intake, but do not was similarly in comparison to those obtained in broilers fed a diet that completely met the requirements during this phase. There was no dietary influence on carcass parameters. The use of alpha-amylase was effective in improving performance in broilers fed a diet of 200 kcal kg-1 of reduced metabolizable energy.

scholarly journals Exogenous enzymes in diets for broilers

2016 ◽  
Vol 17 (2) ◽  
pp. 149-161 ◽  
Author(s):  
Felipe Santos DALÓLIO ◽  
Joerley MOREIRA ◽  
Diego Pereira VAZ ◽  
Luiz Fernando Teixeira ALBINO ◽  
Leonora Ribeiro VALADARES ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Broiler Chicks ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Randomized Design ◽  
Exogenous Enzymes ◽  
Water Holding

SUMMARY The aimed of the study was to evaluate the effect of the inclusion of different levels of an enzyme complex consisting of phytase, protease, xylanase, β-glucanase, cellulase, amylase, and pectinase on the parameters of performance, carcass yield and meat quality of broilers. Six hundred broiler chicks were used, and the animals were females with one day of age, from the Cobb 500 strain, and distributed in a completely randomized design, with five levels of inclusion of the enzyme complex (0, 100, 200, 300 and 400g/ton), and six repetitions, with twenty animals each. The weight gain, feed conversion ratio, feed intake and production viability were assessed in stages between 1 to 21, 1 to 35 and 1 to 42 days of age. The carcass yield and meat quality were evaluated at 35 and 42 days of age. We evaluated the characteristics of weight loss by cooking, shear force, water holding capacity, pH, lightness and color. The parameters of performance, carcass yield and carcass parts, and meat quality were not affected by the enzyme supplementation of diets fed to broiler chickens (P>0.05), except for the performance characteristics of the breast and the wings at 42 days of age (P<0.05).

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