scholarly journals Enzymatic hydrolysis drastically reduces fibre content of palm-kernel expeller, but without enhancing performance in broiler chickens

2019 ◽  
Vol 59 (12) ◽  
pp. 2131 ◽  
Author(s):  
W. L. Chen ◽  
M. F. Jahromi ◽  
S. C. L. Candyrine ◽  
J. B. Liang ◽  
N. Abdullah ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Palm Kernel ◽  
Enzyme Treatment ◽  
Performance Study ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Inclusion Rate ◽  
Hydrolysis Of

The effectiveness of enzymatic hydrolysis of palm-kernel expeller (PKE) is dependent on various factors that influence the stability and functionality of the enzymes. In the present study, parameters influencing the enzymatic treatment of PKE were optimised employing response surface methodology. In addition, the effectiveness of enzymatic hydrolysed PKE in increasing inclusion rates in broiler diets was evaluated. Results showed that temperature, enzyme concentration and duration of hydrolysis had significant (P < 0.01) effects on the enzymatic hydrolysis of PKE. Using the crude enzyme produced by Aspergillus terreus K1 isolated in our laboratory, maximum reduction of crude fibre (40%) was achieved by fermenting the PKE at 60% initial moisture with 9.0 U/g PKE mannanase at 51°C for 18 h, with the production of 9.9% (w/w) of monosaccharides and oligosaccharides. Results of the growth-performance study indicated that inclusion rate of PKE with or without enzyme treatment in broiler diet is 5% for starter period and 20% for the finisher diet, without any detrimental effect on animal performance. Although the inclusion rate of enzyme-treated PKE can be increased to 30% without affecting average daily gain, feed conversion ratio of the birds will be compromised.

scholarly journals Enzymatic hydrolysis of fumonisins in the gastrointestinal tract of broiler chickens

2017 ◽  
Vol 96 (12) ◽  
pp. 4342-4351 ◽  
Author(s):  
B Grenier ◽  
H E Schwartz-Zimmermann ◽  
C Gruber-Dorninger ◽  
I Dohnal ◽  
M Aleschko ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Enzymatic Hydrolysis ◽  
Broiler Chickens ◽  
Hydrolysis Of

scholarly journals Effects of Bacillus amyloliquefaciens LFB112 on Growth Performance, Carcass Traits, Immune, and Serum Biochemical Response in Broiler Chickens

Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1427
Author(s):  
Marhaba Ahmat ◽  
Junhao Cheng ◽  
Zaheer Abbas ◽  
Qiang Cheng ◽  
Zhen Fan ◽  
...  
Keyword(s):  
Growth Performance ◽  
Bacillus Amyloliquefaciens ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Serum Triglyceride ◽  
Basal Diet ◽  
Feed Conversion ◽  
Vegetative Cells ◽  
Serum Biochemical

This study aimed to investigate the effects of Bacillus amyloliquefaciens LFB112 on the growth performance, carcass traits, immune response, and serum biochemical parameters of broiler chickens. A total of 396 1 day old, mixed-sex commercial Ross 308 broilers with similar body weights were allotted into six treatment groups. The assigned groups were the CON group (basal diet with no supplement), AB (antibiotics) group (basal diet + 150 mg of aureomycin/kg), C+M group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 powder with vegetative cells + metabolites), C group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 vegetative cell powder with removed metabolites), M group (basal diet + 5 × 108 CFU/kg B. amyloliquefaciens LFB112 metabolite powder with removed vegetative cells), and CICC group (basal diet + 5 × 108 CFU/kg Bacillus subtilis CICC 20179). Results indicated that chickens in the C+M, C, and M groups had higher body weight (BW) and average daily gain (ADG) (p < 0.05) and lower feed conversion ratio (FCR) (p = 0.02) compared to the CON group. The C+M group showed the lowest abdominal fat rate compared to those in the CON, AB, and CICC groups (p < 0.05). Compared to the CON group, serum IgA and IgG levels in the C+M, C, and M groups significantly increased while declining in the AB group (p < 0.05). B. amyloliquefaciens LFB112 supplementation significantly reduced the serum triglyceride, cholesterol, urea, and creatinine levels, while increasing the serum glucose and total protein (p < 0.05). In conclusion, B. amyloliquefaciens LFB112 significantly improved the growth performance, carcass traits, immunity, and blood chemical indices of broiler chickens and may be used as an efficient broiler feed supplement.

scholarly journals The Response of Broiler Chickens to Dietary Soybean Meal Reduction with Glycine and Cysteine Inclusion at Marginal Sulfur Amino Acids (SAA) Deficiency

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1686
Author(s):  
Usman Elahi ◽  
Jing Wang ◽  
You-biao Ma ◽  
Shu-geng Wu ◽  
Guang-hai Qi ◽  
...  
Keyword(s):  
Amino Acids ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Protein Diet ◽  
Feeding Period ◽  
Sulfur Amino Acids ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Blood Biochemical ◽  
Standard Protein

The responses of broiler chickens to dietary protein reduction were investigated in the presence of glycine and cysteine inclusion at the marginal deficiency of sulfur-containing amino acids. A total of 432 broiler chickens were allotted to six dietary treatments; SP1 is standard protein diet with 100% total sulfur amino acids (TSAA), SP2 is standard protein diet with 85% TSAA, RP is reduced protein diet without glycine and cysteine supplementation, RPC is reduced protein diet with cysteine supplementation at 0.1%, and RPG is reduced protein diet with 1% glycine supplementation, while RPGC is reduced protein diet with 0.1% cysteine and 1% glycine supplementation. In this study, 4.5% protein is reduced in diets—thus, 17.5% CP (crude protein) for starter phase and 15.5% CP for the grower phase. Reduced protein diets contained 85% TSAA. Broiler chickens fed standard protein diet SP2 had superior bodyweight (BW) (p ≤ 0.05) in the starter and grower phase, average daily gain (ADG) (p ≤ 0.05) in the starter and entire feeding period, average daily feed intake (ADFI) (p ≤ 0.05) in the starter phase, and better feed conversion ratio (FCR) (p ≤ 0.05) in the starter, grower and entire feeding period; however, RPGC showed higher ADG (p ≤ 0.05) in the grower phase, and ADFI (p ≤ 0.05) in the grower and entire feeding period. RPC and RPG diet improved BW (p ≤ 0.05), ADG (p ≤ 0.05), ADFI (p ≤ 0.05), and better FCR (p ≤ 0.05) in starter, grower, entire feeding period compared to RP. The RPGC group had higher BW (p ≤ 0.05), ADG (p ≤ 0.05), ADFI (p ≤ 0.05) and better FCR (p ≤ 0.05) compared to the RPC group. Blood biochemical parameters showed that Broiler chickens fed on the SP2 diet had higher levels of total protein (TP) (p ≤ 0.05), albumin (ALB) (p ≤ 0.05), creatinine (CRE) (p ≤ 0.05), and aspartate aminotransferase (AST) (p ≤ 0.05) and, lower level of uric acid (UA) (p ≤ 0.05), blood urea nitrogen (BUN) (p ≤ 0.05), glucose (GLU) (p ≤ 0.05), and alanine aminotransferase (ALT) (p ≤ 0.05) in the starter phase; however, higher level of TP (p ≤ 0.05), GLU (p ≤ 0.05), CRE (p ≤ 0.05), and AST (p ≤ 0.05), and lower level of ALB (p ≤ 0.05), UA (p ≤ 0.05), and ALT (p ≤ 0.05) in the grower phase; RPGC had higher level of TP (p ≤ 0.05), UA (p ≤ 0.05), GLU (p ≤ 0.05), ALT (p ≤ 0.05) and AST (p ≤ 0.05), and lower level of ALB (p ≤ 0.05), BUN (p ≤ 0.05), and CRE (p ≤ 0.05) in the starter phase; however, in grower phase, RPGC had higher level of TP (p ≤ 0.05), and ALB (p ≤ 0.05), and lower level of UA (p ≤ 0.05), CRE (p ≤ 0.05), ALT (p ≤ 0.05), and AST (p ≤ 0.05). Free amino acids profile showed that broiler fed on standard protein diet SP2 had reduced the methionine (p ≤ 0.05) concentration; RPC increased the concentrations of taurine (p ≤ 0.05), phosphoethanolamine (p ≤ 0.05), threonine (p ≤ 0.05), valine (p ≤ 0.05), isoleucine (p ≤ 0.05), phenylalanine (p ≤ 0.05), ornithine (p ≤ 0.05), and lysine (p ≤ 0.05) and reduced the citrulline (p ≤ 0.05) concentration; RPG increased the concentration of glutamate (p ≤ 0.05), glycine (p ≤ 0.05), cysteine (p ≤ 0.05), and arginine (p ≤ 0.05), and decreased the concentration of tyrosine (p ≤ 0.05); and RPGC increased the concentration of serine (p ≤ 0.05) and reduced the concentration of hydroxyproline (p ≤ 0.05). Serum metabolites analysis showed that reduced protein downregulated the 54 metabolites; however, glycine fortification up-regulated the Benzamide, Pro-Ser, N-Carbamylglutamate, D-gluconate, and Gamma-Glutamylcysteine. Carcass quality showed that SP2 decreased the abdominal fat percentage (p ≤ 0.05). Nitrogen digestibility was higher by the diet RP (p ≤ 0.05). This study demonstrated that protein content could be reduced up to 4.5% with 1% glycine and 0.1% cysteine fortification in diet, which has the potential to inhibit the adverse effect of reduced protein and attain the standard growth performance.

scholarly journals Betaine and Antioxidants Improve Growth Performance, Breast Muscle Development and Ameliorate Thermoregulatory Responses to Cyclic Heat Exposure in Broiler Chickens

Animals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 162 ◽  
Author(s):  
Majid Shakeri ◽  
Jeremy Cottrell ◽  
Stuart Wilkinson ◽  
Mitchell Ringuet ◽  
John Furness ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Muscle Development ◽  
Average Daily Gain ◽  
Heat Exposure ◽  
Basal Diet ◽  
Breast Muscle ◽  
Broiler Chicks ◽  
Poultry Production ◽  
Feed Conversion ◽  
Muscle Weight

Heat stress (HS) is an environmental stressor challenging poultry production and requires a strategy to cope with it. A total of 288-day-old male broiler chicks were fed with one of the following diets: basal diet, basal with betaine (BET), or with selenium and vitamin E (AOX), or with a combination of BET and AOX, under thermoneutral and cyclic HS. Results showed that HS reduced average daily feed intake (ADFI) (p = 0.01) and average daily gain (ADG) (p < 0.001), and impaired feed conversion ratio (FCR) (p = 0.03) during rearing period (0–42 day). BET increased ADG (p = 0.001) and decreased FCR (p = 0.02), whereas AOX had no effects. Breast muscle weight was decreased by HS (p < 0.001) and increased by BET (p < 0.001). Rectal temperature was increased by HS (p < 0.001) and improved by BET overall. Respiration rate was increased by HS (p < 0.001), but BET decreased it during HS (p = 0.04). Jejunum transepithelial resistance was reduced by HS and had no effect on permeability whereas BET increased jejunum permeability (p = 0.013). Overall, the reductions in ADG of broiler chickens during HS were ameliorated by supplementation with BET, with much of the increase in ADG being breast muscle.

scholarly journals Optimization of enzymatic hydrolysis of palm kernel cake protein (PKCP) for producing hydrolysates with antiradical capacity

2013 ◽  
Vol 43 ◽  
pp. 725-731 ◽  
Author(s):  
Khar Ling Ng ◽  
Mohd Khan Ayob ◽  
Mamot Said ◽  
Md Anuar Osman ◽  
Amin Ismail
Keyword(s):  
Enzymatic Hydrolysis ◽  
Palm Kernel ◽  
Palm Kernel Cake ◽  
Hydrolysis Of

scholarly journals Propolis supplementation affects performance, intestinal morphology, and bacterial population of broiler chickens

2021 ◽  
Vol 51 (4) ◽  
pp. 477-487
Author(s):  
S. Sadarman ◽  
E. Erwan ◽  
A. Irawan ◽  
M.M. Sholikin ◽  
R. Solfaine ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Bacterial Population ◽  
Mixed Model ◽  
Meta Analysis ◽  
Digestive Enzyme ◽  
Average Daily Gain ◽  
Intestinal Morphology ◽  
Detectable Effect ◽  
Optimum Level ◽  
Feed Conversion

A meta-analysis was conducted to examine the effect of supplementing the diet of broiler chickens with propolis on growth, bacterial population of the intestine, antiviral serum concentration, intestinal morphology, and digestive enzyme activities in broiler chickens. Forty peer-reviewed articles that had been published between 2003 and 2019 were identified using the PRISMA protocol and included in the study. Data were analysed with mixed model methodology, in which the studies were considered random effects, whereas the level of supplemental propolis was considered a fixed effect. Responses to propolis supplementation in bodyweight (BW) and average daily gain (ADG) were quadratic, but average daily feed intake (ADFI) was not affected. Propolis supplementation improved feed conversion ratio (FCR) significantly as a linear function of the level of supplement. The optimum level of supplementation was between 256 and 262 mg/kg feed and produced maximum ADG and final BW. There was a tendency for mortality to decrease because of propolis supplementation. Propolis had no detectable effect on serum antiviral concentration, intestinal bacterial population or intestinal morphology. Among digestive enzymes, only sucrase increased linearly as propolis was increased. Thus, supplementation with propolis increased the growth performance of broiler chickens positively and the effect was dose dependent. This may have been partly because of an improvement in sucrase activity and other factors related to the nutritional content of propolis. Future study to evaluate specific bioactive compounds of propolis is therefore warranted.

scholarly journals Heat Stress and Feed Restriction Distinctly Affect Performance, Carcass and Meat Yield, Intestinal Integrity, and Inflammatory (Chemo)Cytokines in Broiler Chickens

2021 ◽  
Vol 12 ◽  
Author(s):  
Nima K. Emami ◽  
Elizabeth S. Greene ◽  
Michael H. Kogut ◽  
Sami Dridi
Keyword(s):  
Heat Stress ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Fluorescein Isothiocyanate ◽  
Liver Weight ◽  
Blood Parameters ◽  
Future Research ◽  
Feed Conversion ◽  
Meat Yield ◽  
Carcass Yield

This study was conducted to distinguish the effects of heat stress (HS) and feed intake (FI) on broiler chicken’s physiological responses. Day-old male Cobb 500 broilers (n = 672) were allocated to three treatments: (1) control (CTL): birds raised under normal temperature (23°C) from day 29 to 42; (2) cyclic heat stress (CHS): birds exposed to high temperatures (8 h/day at 35°C; from 9:30 am to 5:30 pm) from day 29 to 42; (3) pair-fed (PF): birds raised under thermoneutral condition but fed the same amount of feed as CHS from day 29 to 42. On day 42, 15 birds/pen were processed, to measure carcass and meat yields. To measure blood parameters and gut integrity (using fluorescein isothiocyanate-dextran), on day 42, CHS birds were sampled before (Pre-CHS) and 2 h after (Post-CHS) the temperature increased. Furthermore, after sampling CTL birds, they were exposed to 2h heat and sampled (acute heat stress, AHS). Data were analyzed using one-way ANOVA (JMP Pro15) and significance between treatments identified by LSD (P &lt; 0.05). BW and relative carcass yield were significantly higher in CTL compared to CHS and PF. Compared to CHS, PF had significantly higher BW and lower relative carcass yield. Breast yield was significantly higher for CTL and PF, while leg quarters and wings yield were significantly lower compared to CHS. Gut barrier integrity was significantly altered in Post-CHS and AHS compared to CTL. mRNA abundances of tumor necrosis factor-α, C-C motif chemokine ligand-20, heat shock protein (HSP)-27, and HSP70 were significantly higher in Post-CHS and AHS compared to CTL. AHS had significantly higher mRNA abundances of CARD domain containing (NLRC)-3 and NLRC5 inflammasomes, and lower superoxide dismutase (SOD)-1 and SOD2 abundance compared with CTL. PF had significantly higher liver weight (% BW) compared to all other groups; while abdominal fat was significantly higher in Pre-CHS compared to CTL, PF, and AHS. Together, these data indicate that the negative effects of HS are partially due to reduced FI. However, the negative effect of HS on gut integrity, average daily gain, feed conversion ratio, and meat yield are direct and independent of the reduced FI during the HS. Thus, warrant investigating the underlying mechanisms in future research.

scholarly journals EFFECT OF DURATION OF COOKING MUCUNA UTILIS SEED ON PROXIMATE ANALYSIS, LEVELS OF ANTINUTRITIONAL FACTORS AND PERFORMANCE OF BROILER CHICKENS

2021 ◽  
Vol 34 (1) ◽  
pp. 45-53
Author(s):  
C. D. Tuleun ◽  
J. P. Patrick
Keyword(s):  
Hydrogen Cyanide ◽  
Broiler Chickens ◽  
Proximate Analysis ◽  
Antinutritional Factors ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Nitrogen Free Extract ◽  
Gross Energy ◽  
And Performance ◽  
Performance Results

The effect of cooking regime on the proximate composition, gross energy and anti-nutitional factors (trypsin inhibitor, phytic acid, hydrogen cyanide, tannin, oxalates and saponins) of Mucuna utilis seed was investigated. Two experiments were conducted with 120 seven-day old broilers of equal average initial weight to evaluate the effect of duration of cooking mucuna seed at 100oC for 20, 40 and 60 minutes on performance. Results showed that duration of cooking did not have any significant (P >  0.05) effects on the dry matter, crude fibre and gross energy. However, the crude protein, either extract and nitrogen free extract significantly (P < 0.05) decreased. The anti-nutrients; tannins, trypsin inhibitory activity, hydrogen cyanide, total oxalates significantly (P < 0.05) reduced with increase in duration of cooking. Feed intake, weight gain feed conversion efficiency, protein intake and utilization were significantly (P < 0.05) improved with increase in cooking time. It was concluded that raw Mucuna utilis seeds contain high levels of anti-nutritional factors and may be unsuitable as feed ingredient but cooking reduced the anti-nutritive substances in the raw seeds.

scholarly journals Effects of Feeding Varying Levels of DL-Methionine on Live Performance and Yield of Broiler Chickens

Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2839
Author(s):  
Anthony Pokoo-Aikins ◽  
Jennifer Rumsey Timmons ◽  
Byungrok Rok Min ◽  
William Robert Lee ◽  
Samuel Njoroge Mwangi ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Meat Production ◽  
Live Performance ◽  
Feed Conversion ◽  
Meat Yield ◽  
Common Weight ◽  
Fillet Yield ◽  
Daily Gain

This study was designed to evaluate the effects of dietary supplemental DL-methionine (MET) on live performance and meat yield for broilers raised to a common weight. A total of 1552 one-day old Ross 708, sexed broilers were randomly distributed to 32 pens resulting in eight treatments (TRT) of four replicates with 44 male or 53 female/pen. A randomized complete block with a 2 × 4 (sex × 4 MET levels 0, 0.5, 1, and 2 g/kg) factorial arrangement of TRT was used. A common weight of 2400 g was approached by day 46 (1 and 2 g MET/kg feed) and day 48 (0 and 0.5 g MET/kg feed). Supplementation of MET at 1, and 2 g/kg had a lower (p < 0.01) feed conversion ratio (FCR) at day 46/48 than broilers fed 0.5 g MET/kg. Broilers without supplemental MET had the worst (p < 0.01) feed conversion and average daily gain (ADG) at day 46/48. Birds fed 0 g MET/kg of feed had lower (p < 0.05) whole eviscerated carcass without giblets (WOG), yield than birds fed 2 g MET/kg of feed. Additionally, birds fed 0 g MET/kg of feed had lower (p < 0.05) breast fillet and tender percent yields than birds fed supplemental MET. Elimination of MET from organic broiler diets resulted in reduced ADG, breast fillet yield and feed efficiency of meat yield of broilers raised to day 46/48. Reduction in MET supplementation below current levels reduced the efficiency of meat production of organic broilers raised to day 46/48.

scholarly journals Impact of Fermented Liquid Potato Hash Diets on Growth Performance of Grower Pigs

2018 ◽  
Vol 10 (6) ◽  
pp. 1
Author(s):  
Sylvester Thomas ◽  
Arnold Tapera Kanengoni ◽  
Michael Chimonyo
Keyword(s):  
Growth Performance ◽  
Average Daily Gain ◽  
Growing Pigs ◽  
Feed Conversion ◽  
Exogenous Enzyme ◽  
Randomized Design ◽  
Inclusion Rate ◽  
Feed Source ◽  
Dietary Treatments ◽  
Daily Gain

The study aimed to evaluate growth performance of grower pigs fed fermented liquid potato hash with or without exogenous enzyme. Diets containing either 200 (LFLPH) g/kg potato hash (enzyme treated or not); 400 (HFLPH) g/kg potato hash (enzyme treated or not) or no fermented potato hash (control) were formulated to provide 14 MJ/kg digestible energy (DE), 180 g/kg crude protein (CP) and 11.6 g/kg lysine. Dietary treatments were control (no FLPH), enzyme treated LFPHE and HFLPHE, and untreated LFLPH and HFLPH. The exogenous enzyme was added in treated diets to provide minimum of 560-840 TXU/TDU xylanase per kg feed, at an inclusion rate of 100 g/tonne. Diets were mixed with water at 1:2 ration and fermented for 8 hours at 25 °C room temperature before being fed to pigs. Back-slopping fermentation approach was followed to prepare diets. Twelve pigs (25±2.3 kg) per diet that were individually housed were fed ad-lib for eight weeks. Pigs were allocated to diets in complete randomized design. Average daily gain (ADG), average daily feed intake (ADFI) and feed conversion ratio (FCR) were measured. The enzyme treated FLPH diets had higher (P < 0.05) CP, lower (P > 0.05) NDF and ADF concentrations compared to untreated FLPH diets. The LFPHE diet had higher (P < 0.001) final weight, ADG and lower (P < 0.001) ADFI and FCR compared to LFPH, HLFPH and HLFPHE. It was concluded that LFPHE diet may be an alternative feed source for growing pigs as indicated by higher gain and lower intake compared to LFLPH, HFLPH and HFLPHE.

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