scholarly journals Effects of Guanidinoacetic Acid Supplementation on Productive Performance, Pectoral Myopathies, and Meat Quality of Broiler Chickens

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3180
Author(s):  
Shady Khalil ◽  
Nualprae Saenbungkhor ◽  
Kajorn Kesnava ◽  
Panneepa Sivapirunthep ◽  
Ronachai Sitthigripong ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Normal Breast ◽  
Breast Muscle ◽  
Productive Performance ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Muscle Creatine ◽  
Wooden Breast

The effects of guanidinoacteic acid (GAA) supplementation on productive performance, pectoral myopathies, and meat quality of broilers were studied. Treatments consisted of corn/soybean-based diets with a GAA supplement (0%, 0.06%, and 0.12%). A total of 546 one-day-old Ross-308 males were randomly allocated to 42 floor pens with 14 replicates (13 birds/pens) for each treatment. The results showed that GAA at doses of 0.06% and 0.12% improved feed conversion, increased the percentage of normal breast, and decreased the severity of wooden breast. Breast muscle myopathy severity was positively correlated with heavy birds and negatively correlated with breast muscle creatine and glycogen. Breast muscle creatine and glycogen correlated positively with normal, less severe pectoral myopathies and meat quality. In conclusion, GAA supplementation improved broiler performance without exacerbating pectoral myopathy or affecting meat quality.

scholarly journals Kaempferitrin improves meat quality of broiler chickens

2013 ◽  
Vol 58 (No. 5) ◽  
pp. 227-231
Author(s):  
H.-B. Xiao ◽  
J. Fang ◽  
Z.-L. Sun
Keyword(s):  
Mrna Expression ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Breast Muscle ◽  
Drip Loss ◽  
Commercial Diet ◽  
Meat Colour

Angiopoietin-like protein 3 (Angptl3) may promote adipose formation. The objective of this study was to investigate the effect of kaempferitrin, a 3,7-diglycosyl flavone, on meat quality in broiler chickens and the mechanisms involved. One thousand two hundred broiler chickens were offered commercial diet that was supplemented with 0.0 (control), 0.1, 0.3, or 0.9% kaempferitrin, respectively. After 42 days, kaempferitrin (0.3 or 0.9%) treatment significantly increased the lightness of meat colour. Kaempferitrin (0.3 or 0.9%) supplementation decreased breast muscle drip loss, breast muscle crude fat, breast muscle malondialdehyde level, and hepatic Angptl3 mRNA expression. The present results suggest that kaempferitrin improves meat quality by decreasing expression of Angptl3 in broiler chickens.  

scholarly journals Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2641 ◽  
Author(s):  
Jomara Broch ◽  
Ricardo Vianna Nunes ◽  
Vladimir De Oliveira ◽  
Idiana Mara da Silva ◽  
Cleison De Souza ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Blood Parameters ◽  
Feed Conversion ◽  
Breast Meat ◽  
Carcass Yield ◽  
Linear Effect ◽  
Blood Glucose Concentrations ◽  
Water Holding

The objective of this study was to evaluate the inclusion of dry residue of cassava (DRC) with or without supplementation of carbohydrases on performance, carcass yield, cuts and organs, blood parameters and meat quality of broiler chickens. Birds were distributed in a completely randomised design in a 2 x 5 factorial scheme, with or without addition of carbohydrases and five levels of DRC inclusion, resulting in 10 treatments with 5 replicates of 22 birds each. At 21 days of age, two birds of each treatment were fasted for 6 hours for blood brachial puncture. At 42 days, four birds per pen were slaughtered to determine carcass yield, cuts, organs, percentage of abdominal fat and meat quality. Between 1-21 days of age, there was an interaction (P < 0.05) between carbohydrase and DRC supplementation on weight gain (WG) and feed intake, which showed a decreasing linear effect without the inclusion of carbohydrases. In the period from 1 to 42 days, there was an interaction (P < 0.05) between carbohydrase supplementation and DRC inclusion on the variables WG and feed conversion. Carbohydrase inclusion provided an increase (P < 0.05) in the concentrations of cholesterol, triglycerides, creatinine, gamma GT and blood glucose. Concentrations of gamma GT were increased and levels of alanine aminotransferase and creatinine were decreased (P < 0.05) with DRC inclusion. At 24 hours post mortem, there was a significant interaction (P < 0.05) for breast meat between carbohydrase supplementation and DRC inclusion for the variable L. The analysed values of pH, water holding capacity and shear force of the breast meat were not affected (P > 0.05) by DRC inclusion and carbohydrase addition. However, cooking loss was influenced (P < 0.05) by levels of inclusion of DRC. The L and a* variable and the feet of broiler chickens were not affected (P > 0.05) by DRC levels and carbohydrase addition. The colour variable b* showed a decrease (P < 0.05) from 5% level of inclusion. The results of this study show that DRC can be used in the diets of broiler chickens from 1 to 21 days old to the assessed level of 10%, provided that carbohydrase is added.

scholarly journals Effects of natural antioxidant extract supplementation on the growth performance and meat quality of broiler chickens

2020 ◽  
Vol 65 (4) ◽  
pp. 405-417
Author(s):  
Hakeem Ishola ◽  
Elisha Jiya ◽  
John Adama ◽  
Olushola Alabi
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Antioxidant Supplementation ◽  
Significance Level ◽  
Peel Extract

The study examined the effect of dietary antioxidant supplementation on the performance and meat quality of broiler chickens. Namely, 300 one-day-old Arbor Acres broiler chicks were fed a starter diet from 1 to 4 weeks and a finisher diet for the last 4 weeks. Birds were randomly assigned to treatments based on antioxidant supplementation in drinking water at 0.02% butylated hydroxyanisole (BHA), ordinary water (OW), 0.02% sweet orange peel extract (SOPE), 0.02% shaddock peel extract (SHPE) and 0.02% lemon peel extract (LMPE) per litre of water in a completely randomized design experiment. Feed intake and body weight gain were recorded on a weekly basis. Three birds were selected in each treatment and slaughtered for meat quality determination. BHA and LMPE treatments had the best weight gain and feed conversion efficiency at the significance level (p<0.05). There were significant differences (p<0.05) in the shear force (force peak and yield) in the dietary antioxidants fed to the birds. Sensory parameters (taste, aroma and overall acceptability) show significant differences (p<0.05) amongst the treatments. However, there were no significant differences (p>0.05) in appearance and texture perception amongst treatments. Finally, significant differences (p<0.05) in the lightness (L*) and redness (a*) of the meat samples were observed amongst the treatments. There were no significant differences (p>0.05) in the yellowness (b*) amongst the treatments. It can be concluded that broiler birds fed SOPE, SHPE and LMPE treatments performed better and that these treatments enhanced the meat quality of the birds when compared to BHA and OW treatments.

Effect of age, sex and slaughter weight on productive performance,carcass characteristics and meat quality of crossbred (Hampshire x Assam local) pigs

2016 ◽  
Vol 50 (4) ◽  
Author(s):  
P. Borah ◽  
J. R. Bora ◽  
R. N. Borpuzari ◽  
A. Haque ◽  
R. Bhuyan ◽  
...  
Keyword(s):  
Meat Quality ◽  
Conversion Efficiency ◽  
Age Groups ◽  
Productive Performance ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Crossbred Pigs ◽  
Effect Of Age ◽  
Age And Sex

The effect of age of slaughter and sex on productive performance, carcass and meat quality characteristics was studied in 4 different age groups viz., T1 (7–8 months), T2 (9–10 months), T3 (11-12 months) and T4 (13-14 months). Each group consisted of 15 barrows and 15 gilts. With the advancement of age, feed conversion efficiency decreased significantly; however, sex did not seem to influence the feed conversion efficiency of crossbred pigs. Hot carcass weight increased linearly with the advancement of age. Carcass length increased with age but was not influenced by sex. The dressing percentage, back fat thickness, loin eye area were not affected by age and sex of the animal. Proximate composition and colour of pork Longissimus dorsi was not affected by the age and sex of the animal. Pork tenderness decreased with age.

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).

The effect of replacing inorganic trace minerals with organic Bioplex® and Sel-Plex® on the performance and meat quality of broilers

2013 ◽  
Vol 2 ◽  
Author(s):  
Teresa Tavares ◽  
José Luís Mourão ◽  
Zoe Kay ◽  
Peter Spring ◽  
José Vieira ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Trace Minerals ◽  
Feed Conversion ◽  
Breast Meat ◽  
Broiler Performance ◽  
Organic Trace Minerals ◽  
Inorganic Mineral ◽  
Organic Minerals ◽  
Organic Trace

SummaryThe aim of this study was to compare the performance and carcass quality of broilers fed diets containing either a commercial inorganic mineral premix (control) or organic trace minerals (OTM) (Sel-Plex® (Se) and Bioplex® copper (Cu), zinc (Zn), manganese (Mn) and iron (Fe)) in a commercial environment. Four identical houses with a total of 119,500 mixed-sex broiler chickens were used (two treatments × two replicates). Birds were fed identical corn/soybean based rations differing only in mineral form and levels. The inorganic treatment (control) provided Cu, Zn, Fe, Mn and Se at levels of 8, 44, 55, 66 and 0.2 ppm, respectively. The OTM contained 5.5, 22, 5.5, 22 and 0.3 ppm of Cu, Zn, Fe, Mn and Se respectively. Growth and feed conversion during the 35-day trial were not influenced (P > 0.05) by treatments. Over the entire trial period and during the first week of production, birds showed significantly lower (P < 0.05) mortality with the OTM treatment. Between 14 and 31 days, sudden death syndrome was lower (P < 0.05) with the OTM diet. OTM improved feathering at 21 days of age (P < 0.001) and lowered carcass skin tearing (P < 0.05). There was no effect of OTM on carcass yield, breast meat pH, drip loss or on meat colour (L* and b* values). However, birds fed organic minerals had redder breast meat (a*) (P < 0.05) on days three and five after slaughter. The results showed that, under commercial conditions, using lower levels of OTM (except Se) in feed relative to inorganic controls can maintain broiler performance.

scholarly journals Mineral supplementation: effects on bone integrity and intestinal morphometry of broiler chickens challenged with Eimeria sp

2019 ◽  
Vol 69 (1) ◽  
pp. 88-105
Author(s):  
Inês Jovanir Fernandes Müller ◽  
Mayra Ribeiro Vissotto ◽  
Letícia Cardoso Bittencourt ◽  
Thais Eliana Riffel ◽  
Fernanda Lima Kaiser ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Broiler Chicks ◽  
Productive Performance ◽  
Feed Conversion ◽  
Mineral Supplementation ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Organic Minerals ◽  
Intestinal Morphometry

Abstract The objective of this study was to evaluate the effect of supplementation of organic minerals on the productive performance and bone quality of broilers from 1 to 21 days of age and the intestinal health in situations of enteric challenge from 21 to 28 days of age. In a completely randomized design, with two treatments composed for minerals as sulfate and Carbo-Amino-Phospho-Chelate (CAPC), a total of 900 male broiler chicks were allocated to nine replicates and 18 experimental units with 50 birds each. 640 birds at 21 days of age were transferred to experimental cages and distributed in a completely randomized design, in factorial 2 × 2 (minerals as sulfate and CAPC × with and without enteric challenge), obtaining 4 treatments with 16 replicates and 10 birds each. In the same day of change, the group of challenged broilers received a commercial vaccine for coccidiosis that covers the Eimeria sp. At 7 days, the supplementation with CAPC minerals resulted in higher (p<0.05) weight gain and better feed conversion in relation to the inorganic source. The deposition of minerals evaluated in the tibia of broilers was not influenced (p>0.05) by the source of minerals, with the exception of Cu and Mn, whose deposition was greater (p<0.05) in the bones of poultries supplemented with inorganic source of minerals. There was higher (p<0.05) length and width of the villi and increase in the ratio villus: crypt in response to the intestinal spoliation with CAPC supplementation when compared to the inorganic source.

scholarly journals Effect of Dietary Microalgae on Growth Performance, Profiles of Amino and Fatty Acids, Antioxidant Status, and Meat Quality of Broiler Chickens

Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 761 ◽  
Author(s):  
Sabry El-Bahr ◽  
Saad Shousha ◽  
Ahmed Shehab ◽  
Wassem Khattab ◽  
Omar Ahmed-Farid ◽  
...  
Keyword(s):  
Amino Acids ◽  
Body Weight ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Breast Muscle ◽  
Plate Count ◽  
Performance Profiles ◽  
And Control

The study used 96 broiler chickens to evaluate the impact of three species of microalgae on performance, profiles of fatty and amino acids, antioxidants, and meat quality of breast muscles. Birds were divided into four groups (24 birds/each) with 4 replicates (6 birds each). Birds in the first group were fed basal diet and served as a control (C). Birds of 2–4 groups were fed basal diet mixed with same dose (1 g/kg diet) of Chlorella vulgaris (CV), Spirulina platensis (SP), and Amphora coffeaformis (AC). At the age of 36 days, performance parameters were reported, and breast muscle samples were collected and stored frozen at −80 °C. AC shared CV in the superiority of increasing final body weight and body weight gain compared to SP and control. AC shared SP in the superiority of increasing the level of essential fatty and amino acids and decreasing the microbial growth in breast muscle compared to CV and control. All studied microalgae reduced malondialdehyde (MDA) and protein carbonyl (PC) levels, cooking loss, and aerobic plate count (APC) and increased the superoxide dismutase (SOD) activities in breast muscle compared to control. The current study indicated that studied microalgae, notably AC, can be used to enhance performance and meat quality in broilers chickens.

scholarly journals Dry residue of cassava as a supplementation in broiler feed with or without addition of carbohydrases

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2641
Author(s):  
Jomara Broch ◽  
Ricardo Vianna Nunes ◽  
Vladimir De Oliveira ◽  
Idiana Mara da Silva ◽  
Cleison De Souza ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Blood Parameters ◽  
Feed Conversion ◽  
Breast Meat ◽  
Carcass Yield ◽  
Linear Effect ◽  
Blood Glucose Concentrations ◽  
Water Holding

The objective of this study was to evaluate the inclusion of dry residue of cassava (DRC) with or without supplementation of carbohydrases on performance, carcass yield, cuts and organs, blood parameters and meat quality of broiler chickens. Birds were distributed in a completely randomised design in a 2 x 5 factorial scheme, with or without addition of carbohydrases and five levels of DRC inclusion, resulting in 10 treatments with 5 replicates of 22 birds each. At 21 days of age, two birds of each treatment were fasted for 6 hours for blood brachial puncture. At 42 days, four birds per pen were slaughtered to determine carcass yield, cuts, organs, percentage of abdominal fat and meat quality. Between 1-21 days of age, there was an interaction (P < 0.05) between carbohydrase and DRC supplementation on weight gain (WG) and feed intake, which showed a decreasing linear effect without the inclusion of carbohydrases. In the period from 1 to 42 days, there was an interaction (P < 0.05) between carbohydrase supplementation and DRC inclusion on the variables WG and feed conversion. Carbohydrase inclusion provided an increase (P < 0.05) in the concentrations of cholesterol, triglycerides, creatinine, gamma GT and blood glucose. Concentrations of gamma GT were increased and levels of alanine aminotransferase and creatinine were decreased (P < 0.05) with DRC inclusion. At 24 hours post mortem, there was a significant interaction (P < 0.05) for breast meat between carbohydrase supplementation and DRC inclusion for the variable L. The analysed values of pH, water holding capacity and shear force of the breast meat were not affected (P > 0.05) by DRC inclusion and carbohydrase addition. However, cooking loss was influenced (P < 0.05) by levels of inclusion of DRC. The L and a* variable and the feet of broiler chickens were not affected (P > 0.05) by DRC levels and carbohydrase addition. The colour variable b* showed a decrease (P < 0.05) from 5% level of inclusion. The results of this study show that DRC can be used in the diets of broiler chickens from 1 to 21 days old to the assessed level of 10%, provided that carbohydrase is added.

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