Meat Quality Of Broiler Chickens Research Articles

Effect of distiller’s dried yeast on selected microbiotic fractions and the carcass and meat quality of broiler chickens

Abstract The study was conducted on 112 broiler chickens fed for 35 and 37 days with various levels of distiller’s yeast in diets – 3% in starter, 6% in grower, and 9% in finisher feeds. The results showed that as the level of distiller’s dried yeast in the broiler diets increased, the total number of bacteria in the mucosa of the small intestine, cecum, and colon decreased, including mainly Enterobacteriaceae, Enterococcus, and E. coli. The addition of 9% yeast to the diet significantly reduced the abundance of Lactobacillus sp. in the intestinal mucosa of broiler chickens. There was no significant effect of the level of distiller’s dried yeast in the diet of broiler chickens on carcass quality, pH, water holding capacity, sensory characteristics, and macronutrient and micronutrient content in breast muscle. On the other hand, there was a significant effect of the analyzed distiller’s yeast on color characteristics and basic chemical composition of breast muscle. The highest lightness (L*), yellowness (b*), and chroma (C*) and the lowest dry matter content were found in the meat of chickens receiving 6% and 9% distiller’s dried yeast in their diets. The results of the study indicate that for the best results in terms of carcass and meat quality, the optimal content of the analyzed yeast in the diet of broiler chickens should not exceed 3%.

Effects of chicory (Cichorium intybus L.) distillation wastewater on antioxidant status, immune response, cecal microbial population, growth performance and meat quality in broiler chickens

Chicory (Cichorium intybus L.) distillation wastewater (CDWW) is a dark viscous liquid obtained as a by-product of the processing of industrial chicory (Cichorium intybus). The current study aimed to investigate the influence of dietary CDWW on growth performance, oxidative status, immune response, meat quality, and cecal microbial population of broiler chicken. In total, 400 one-d-old male chickens (Ross 308) were allotted into four groups in ten replicates of 10 chickens each. The 1st group was fed a basal diet without CDWW (control), whereas the 2nd, 3rd, and 4th groups were fed diets containing CDWW (15, 30, and 45 mL/kg diet, respectively) for 42 days. At day 42 of age, CDWW significantly increased body weight gain (P < 0.01), improved feed efficiency, and reduced mortality rate (P < 0.05). Treatments did not have a significant effect on feed intake. The 30 and 45 mL of CDWW groups showed an increase in hematological values than other groups (P < 0.05). The ALT, AST, ALP, triglyceride, and cholesterol concentration in serum were lower and immunoglobulins (IgA, IgG, IgM) were greater in 30 and 45 mL /kg of CDWW groups than other groups (P < 0.05). The malondialdehyde (MDA) content in serum, liver, breast, and lipid peroxide (LPO) in breast decreased by 30 and 45 mL of CDWW supplementation (P < 0.05). The oxidative enzymes activities in serum, liver, and breast were greater in 30 and 45 mL /kg of CDWW than other groups (P < 0.05). Also, quality properties and composition of beast were improved and ceceal harmful microbial counts were decreased by the 30 and 45 mL /kg of CDWW (P < 0.05). In conclusion, the CDWW at 30 and 45 mL /kg improved the broiler's performance, meat quality, as well as blood indices and cecal microbial load by enhancing antioxidant activities and suppressing lipid peroxidation in meat.

The effects of cricket meal (Gryllus sigillatus) on the meat quality, growth, and internal morphology of broiler chickens

Cricket ( Gryllus sigillatus) meal (CM) was fed to Ross 308 broiler chickens ( n = 624 total; 26 birds/pen) at dietary inclusion rates of 0% (non-medicated control; NM), 0% (medicated control; 0.05% virginiamycin, 0.03% monensin; M), 5%, 10%, 15%, and 20% CM (non-medicated) for 35 days to determine the impact of this novel feed ingredient on the growth, feed intake, organ indices, and meat quality of these chickens. The final average live weight of broilers fed 5% CM was lower than broilers fed the 10% CM ( P &lt; 0.05) and the 0% NM diets ( P &lt; 0.05). Total weight gain was lowest in chickens fed 5% CM ( P &lt; 0.05) and the % ratio of the weight of the small intestine to body weight of the chickens fed 5% CM was significantly higher on day 20 than that of the other treatments ( P &lt; 0.05). Meat texture and colour were not affected by dietary treatments. Cooking loss in birds fed the 10% CM diet was significantly higher than that of birds fed the 0% NM control. Feeding up to 20% CM did not alter the growth, organ indices, or meat quality of broiler chickens, although further research is required to determine whether including &gt;20% CM in the diet will produce similar results.

Productivity and meat quality of broiler chickens fed a diet supplemented with ethanolic propolis extract

Productivity and meat quality of broiler chickens fed a diet supplemented with ethanolic propolis extract

Physical and Microbiological of Broiler Chicken Meat Marketed on Stalls in the City of Denpasar, Bali Province

The study aims to find out the physical and microbiological quality of broiler chicken meat marketed in Lapak in Denpasar, Bali Province. Broiler chicken meat is a perishable food ingredient, in the community postharvest handling broiler chicken meat gets less attention from farmers and broiler collectors for will be marketed. Conditions in which the place used in carrying, transporting live chickens and used for selling broiler chicken meat in roadside stalls, knives for cutting, cutting boards (sliced boards), washcloths (napkins) are used by traders, so that a lot of losses are caused postharvest handling, especially broiler chicken meat. Research will be carried out for 3 months, with the target of producing broiler chicken meat with good quality and nutritional and microbiological content according to SNI marketed by sellers in Lapak in Denpasar City, in order to reduce damage to animal feed ingredients (meat broiler which is ASUH) so that consumers become healthy. The method used in this study is a Completely Randomized Design (CRD) with the treatment of 4 treatments of broiler chicken meat sold in Lapak in Denpasar City (RU = North Denpasar, RT = East Denpasar, RS = South Denpasar and RB = West Denpasar) with 5 replications and each replication consisted of 5 broiler chickens. The variables observed were broiler chicken carcasses, physical properties of chicken meat (commercial cuts, and the chemical quality of meat (protein, fat, cholesterol) and the microbial content (TPC) marketed. obtained. Research result had a not significantly different (P&gt;0.05) on carcass weight, percentage carcass, and meet microba of broiler. From this study, it can be concluded that the carcass production of broiler chickens sold in Lapak in Denpasar North, Denpasar, Timur, Denpasar Barat and Denpasar Selatan had no effect on the weight of the cut, carcass fracture of the back, wing, and percentage of broiler chicken fracture.

Effects of Acacia mearnsii tannins on growth performance, footpad dermatitis, nutrient digestibility, intestinal permeability, and meat quality of broiler chickens

An experiment was conducted to evaluate the effects of increasing dietary supplementation of tannins from Acacia mearnsii on broiler growth performance, footpad dermatitis, litter moisture, and ileal digestibility as well as on intestinal permeability, jejunal morphometric, and lipid oxidation measurements. A total of 1620 Cobb 500 one-day-old male chicks were fed 6 experimental diets with 10 replicate pens of 27 birds each in a 4-phase feeding program. Dietary treatments were as follow: non-challenged control, challenged control, and challenged supplemented with 300, 500, 700, or 900 mg/kg tannin from Acacia mearnsii. All birds on challenged groups were challenged with Eimeria spp. on day 1 and Clostridium perfringens on days 11, 12, and 13. Performance was evaluated weekly until day 43. On day 21, blood samples were collected for biochemistry analyses and the intestinal permeability was evaluated using FITC-d as marker. Ileal digestibility and jejunal morphometric were also determined on day 21. Footpad dermatitis, litter moisture, and litter pH were evaluated on days 28, 35, and 43. On day 44, carcass and commercial cuts weights were evaluated and thigh samples were collected for lipid oxidation (TBARS) through a 6 months storage period. Broilers under intestinal challenge had lower growth performance, higher intestinal permeability, and lower serum albumin, cholesterol, glucose, and triglycerides compared to non-challenged birds (P < 0.05). From day 1 to 43, increasing tannin supplementation for broilers under intestinal challenge led to quadratic increases (P < 0.05) in body weight gain, with optimal supplementation at 310 mg/kg as well as optimized estimations for feed conversion ratio at 444 mg/kg tannin. Dietary tannin supplementation that reduced intestinal permeability at 21 days was 466 mg/kg (P < 0.05). Tannin supplementation that improved protein and energy digestibility were at 374 and 294 mg/kg, respectively (P < 0.05). No effects of tannin were observed on blood biochemistry, crypt depth, litter pH, carcass measurements, and lipid oxidation until the storage day 60. However, increasing levels of tannin supplementation led to a linear (P < 0.05) decrease on lipid oxidation of broiler meat after 90 days of storage. In conclusion, low levels of supplemental tannins from Acacia mearnsii improved growth performance, nutrient digestibility, and intestinal permeability in broilers under an intestinal challenge.

Dietary supplementation with natural antioxidants: assessment of growth performance and meat quality in broiler chickens

Exposure to air and light lowers the meat quality of chickens, which is mainly determined by the color alteration and accumulation of detrimental products from lipid oxidation. This study tests the effects of two supplements rich in polyphenols, Oxilem (OX) and OxiGem (OG), on broiler Ross 308 performance and meat quality in comparison to a control group (C). A total of 105 one-day-old Ross 308 male chicks were allocated to 21 pens and randomly assigned to one of the three treatments. The trial lasted 42 days. Individual live weight and feed intake per pen were recorded. Proximate analysis, color, cholesterol content and cholesterol oxidation products (COPs), fatty acids (FAs), volatile aldehydes profile, and secondary oxidation products of meat FAs were determined, with analyses for detecting oxidative alterations conducted on breast burgers preserved for seven days at 4°C. Birds fed OG grew 7 g/day more than those receiving OX, reaching a higher final weight. After slaughtering, meat from the OX group had a higher yellow index compared to C. After seven days of air and light exposure, the influence on the color parameters of the OG and OX burgers was significantly less pronounced than that of C. Secondary oxidation products of the FAs of the burgers were not significantly affected by the diet regimens. In addition, OX and OG burgers exhibited lower amounts of volatile aldehydes, triol and COPs. These results confirm the effectiveness of OX and OG supplementation against lipid oxidation at the inclusion level used in this trial.

Blood lipid profile and meat quality of broiler chickens Fed fermented Jamu Makarens

Blood lipid profile and meat quality of broiler chickens Fed fermented Jamu Makarens

Changes in the bioactive compounds of sun-dried ginger rhizome and their effects on growth performance, blood profile, carcass and meat quality of broiler chickens

Changes in the bioactive compounds of sun-dried ginger rhizome and their effects on growth performance, blood profile, carcass and meat quality of broiler chickens

Halquinol and nanoencapsulated essential oils: A comparative study on growth performance, intestinal morphology and meat quality in broiler chickens

Diets supplemented with halquinol and/or nanoencapsulated essential oils (N-EOs) have shown positive effects on the productive parameters of broiler chickens. However, there is limited comparative evidence between these two products. This study aimed to investigate and compare the efficacy of N-EOs blends with halquinol as dietary supplements for broiler chickens. A total of 500 male Cobb 500 broiler chickens were randomly assigned to five dietary groups. The control group received a conventional diet supplemented with halquinol (60%), while the experimental groups received supplementation with N-EOs blends derived from soursop (S), lemon (L), and eucalyptus (E) in different proportions: T1 (S:33.33%, L:33.33%, E:33.33%), T2 (S:50%, L:25%, E:25%), T3 (S:25%, L:50%, E:25%), and T4 (S:25%, L:25%, E:50%). The trial lasted for 42 days. The results showed that the T1 and T4 groups obtained the highest values (p &lt; 0.05) for average daily growth rate and breast yield. The feed conversion ratio was significantly lower in groups T1 and T4 (p &lt; 0.05). All N-EOs supplemented groups exhibited higher carcass yield (p &lt; 0.05). At day 42, the T1 group displayed increased villus height and villus height/crypt depth ratio in the duodenum (p &lt; 0.01), while all experimental groups showed increased villus width in the jejunum and ileum (p &lt; 0.05). Texture analysis revealed that N-EOs-treated groups had texture values similar to halquinol, except for the T1 group, which significantly increased hardness (p &lt; 0.05). Bromatological analysis showed that the T4 group significantly improved the percentage of crude protein, fat, and ash compared to the halquinol-supplemented group (p &lt; 0.05). Additionally, the T1 and T4 groups exhibited lower levels of lipid peroxidation (p &lt; 0.05). In conclusion, dietary supplementation with N-EOs holds promise as a potential alternative to halquinol, with the added advantage of improved oxidative stability.

The use of probiotic in chicken-broilers feeding

Biologically active feed additives of natural origin that do not hurt the body are increasingly used in poultry farming, making it possible to produce safe food products. It is known that probiotics are preparations of microbial origin that manifest their properties through the regulation of intestinal microflora. The primary mechanism of action of probiotics is to populate the gastrointestinal tract with strains of beneficial bacteria that displace opportunistic microflora from the intestinal biocenosis. The experiment aimed to establish the effect of probiotic feed additives on the productivity, slaughter performance, and meat quality of broiler chickens. Following the purpose of the research, a scientific and economic experiment was conducted on two similar groups of broiler chickens of the “Cobb-500” cross from one day to 42 days of age, with 20 heads in each group according to the experiment scheme. The experiment lasted 42 days. With the use of a feed additive in feeding broiler chickens of the 2nd group, the live weight increased by 11.9 % (Р ≤ 0.001) compared to the control group. It was found that under the influence of the supplement, the average daily growth in broiler chickens of the 2nd group was higher by 12.1 %, absolute by 12.2 % (Р ≤ 0.001) compared to control peers during the entire experiment period. In addition, in the 2nd group of broilers, feed consumption per 1 kg of growth is reduced by 8.9 % compared to the control. The use of a feed additive in the feeding of broiler chickens of the 2nd group increases the pre-slaughter live weight by 12.0 % (Р ≤ 0.001), the weight of an uncut carcass by 12.1 % (Р ≤ 0.001), half-cut carcass by 9.9 % (Р ≤ 0.01) and by 13.3 % (Р ≤ 0.001) relative to the control value. With the consumption of the investigated feed additive in broilers of the 2nd group, the level of total moisture in the pectoral muscles increased by 1.3 % (Р ≤ 0.05), and in the femoral muscles, the hygromoisture level was higher by 0.2 % (Р ≤ 0.05) and the amount of nitrogen by 0.2 % (Р ≤ 0.05), compared to the control group.

Effect of Moringa oleifera Leaves Extract, Whey Protein, and Their Combination on Growth, Carcass and Meat Quality of Broiler Chickens

Effect of Moringa oleifera Leaves Extract, Whey Protein, and Their Combination on Growth, Carcass and Meat Quality of Broiler Chickens

Effect of reduced crude protein diets supplemented with free limiting amino acids on body weight, carcass yield, and breast meat quality in broiler chickens

This study investigated the effect of reducing dietary crude protein (CP) content in the grower and finisher diets of broiler chickens on breast meat quality, muscle protein functionality, growth, carcass yield, and meat yield. To achieve this, a total of 1,269 one-day-old male Ross 308 chicks were fed 1 of 3 diets replicated 9 times each in a randomized complete block design with 9 blocks. The diets included a control (20.4% and 19.5% CP in the grower and finisher phase, respectively), a diet with a 1.5% reduction (CP-1.5%) and a diet with a 3.0% reduction (CP-3.0%) in CP content in both the grower and finisher phases. At the end of the experiment, the reduced-CP diets had no impact on body weight, feed intake, or feed conversion ratio. However, reduced-CP diet resulted in reduced (P < 0.001) total nitrogen intake (-7.46 and -11.94% in CP-1.5% and CP-3.0%, respectively). Breast meat quality was assessed (n=36 birds/group), and the experimental diets were associated with a slightly increased (P=0.07) ultimate pH (5.75, 5.79, and 5.81 for the control, CP-1.5%, and CP-3.0%, respectively). Breast fillets from the CP-1.5% and CP-3.0% groups had lower yellowness (b*, P < 0.001) and lower cooking loss (CL, P < 0.001) values than the control. Moreover, the solubility, emulsion activity, and stability indices of the sarcoplasmic and myofibrillar fractions of muscle proteins were not influenced by the diets. CP-1.5% and CP-3.0% diets were associated with an increased (P < 0.001) breast yield (18.39, 19.21, and 19.61% for the control, CP-1.5%, and CP-3.0%, respectively) while leg yield remained unchanged. Additionally, breast meat nutritional properties including protein and lipid contents were not impacted by the experimental diets. In conclusion, the CP content in the grower and finisher diets of broiler chickens can be reduced by as much as 3.0% without detrimental effects on performance or on meat quality as long as birds' amino acid requirements are adequately met.

The Effects of Dietary Supplementation with Origanum onites Essential Oil on Growth Performance, Some Blood Parameters, Jejunal Villus Height, and Meat Quality in Broiler Chickens

The Effects of Dietary Supplementation with Origanum onites Essential Oil on Growth Performance, Some Blood Parameters, Jejunal Villus Height, and Meat Quality in Broiler Chickens

Feeding Behavior, Growth Performance and Meat Quality Profile in Broiler Chickens Fed Multiple Levels of Xylooligosaccharides.

A total of 240 1-day-old Arbor Acres broiler chickens were randomly distributed to 4 treatment groups with 6 replicates and 10 birds per replicate. Chickens were fed with corn-soybean meal diet supplementation with additions of 0, 150, 300, and 450 mg/kg XOS for 42 days. At 4 weeks of age, the average feeding time was reduced in the 450 mg/kg XOS group (p < 0.05), and the percentage of feeding time was increased in the 300 mg/kg XOS group (p < 0.05). At 5 weeks of age, broilers fed with 300 mg/kg XOS had increased the percentage of feeding time (p < 0.05), and 450 mg/kg XOS had increased the feeding frequency and percentage of feeding time (p < 0.05). At 6 weeks of age, the feeding frequency was highest in the 450 mg/kg XOS group (p < 0.05). During 4 to 6 weeks of age, the average feeding time was increased in 300 mg/kg XOS group (p < 0.05), the frequency was improved in the 450 mg/kg XOS group (p < 0.05), and the percentage of feeding time was longer in the XOS group than that in the control group (p < 0.05). The average daily gain was improved during days 22-42 and days 1-42 in the 150 mg/kg XOS group (p < 0.05). Broilers fed with 300 mg/kg XOS had an increased eviscerated rate (p < 0.05). The pH45min of breast muscle was highest in the 450 mg/kg XOS group (p < 0.05), as well as the pH45min and pH24h of thigh muscle, which improved in the 300 mg/kg and 450 mg/kg XOS groups (p < 0.05). In addition, the cooking loss of thigh muscle was reduced in the 300 mg/kg XOS group (p < 0.05). In conclusion, dietary supplementation with XOS had positive effects on the feeding behavior, growth performance, and meat quality of broiler chickens.

The Quality of Broiler Chicken Meat Given Bean Sprouts Waste in Rations During Storage

The purpose of this study was to determine the quality of broiler chicken meat which was given a ration containing fermented bean sprout waste flour during storage. This study used a completely randomized design (CRD) with 2 factors, namely factor 1 which consisted of P0 (control ration without the addition of fermented bean sprout waste flour), P1 (ration containing 3% fermented bean sprout waste flour), P2 (ration containing 6% fermented bean sprout waste flour, and P3 (ration containing 9% fermented bean sprout waste flour).The interaction of fermented bean sprout waste and storage time showed no significant effect (P&gt;0.05) on broiler meat quality. Storage time of broiler chicken meat at temperature 8˚C with good quality is 8 days.

The Quality of Broiler Chicken Meat Fed with Dragon Fruit (Hylocereus polyrhizus) Peel Flour

The study aims to evaluate the effect of dragon fruit peel flour (DPF) on the meat quality of broiler chicken. A total of 96 DOCs of the Ross strain were randomly divided into 4 treatments and 6 replications. The treatments included T0=Basal diet (BD), T1=BD + 0.5% DPF, T2=BD + 1% DPF, and T3=BD + 1.5% DPF. Data were analyzed using ANOVA and Duncan Multiple Range Test. Observed variables were water content, dry matter, protein, and fat mass of the broiler chicken’s meat. The results showed that there was an increase (P&lt;0.05) in the meat weight, protein mass, and fat mass of broiler chickens fed with DPF, while pH, water content, dry matter, and the value of microbial respiration were not affected by the treatment (P&gt;0.05). It was concluded that adding dragon fruit peel flour in broiler diets up to 1.5% could increase broiler meat's weight, protein, and fat mass.

Serum biochemistry, meat quality and oxidative stability in broiler chicken supplemented with a novel phytogenic feed additive formulated from P. betle, P. nigrum, A. lanata and C. dactylon

The present study investigated the effect of a phytogenic feed additive (PFA) formulated with Aerva lanata, Piper betle, Cynodon dactylon and Piper nigrum on the haematological and serum biochemical profiles in broiler chicken, and its efficacy to improve quality and oxidative stability of chicken meat. In a six-week experiment, a total of 192 day-old broiler chicks were subjected to four dietary treatments that included, basal diet+ chlortetracycline; only basal diet without chlortetracycline and PFA; and basal diet + 1 or 2% PFA. Each treatment group included six replicates of eight birds per replicate. The results showed improved albumin and cholesterol in serum of birds fed 1% PFA. The meat of birds supplemented 1% PFA showed a significant reduction in drip loss after 1 and 4 days of storage. The lipid peroxidation of breast meat measured as malondialydehyde concentration was not altered by dietary treatments at different periods of storage. Feeding 1% PFA did not induce any toxic effects on liver, kidney and spleen histology. It was concluded that the PFA when used as a feed additive improved serum biochemistry and meat quality in broiler chickens.

Effects of Dried Blueberry Pomace and Pineapple Pomace on Growth Performance and Meat Quality of Broiler Chickens.

The purpose of this study was to investigate the effects of dried blueberry pomace (BP) and pineapple pomace (PP) on the growth performance and meat quality of broiler chickens. A total of 240 1-day-old Ross 308 broiler chickens were randomly divided into 3 groups, with 10 replicates per treatment group and 8 birds per replicate (4 males and 4 females). The three groups were the control (CON) group, the 3% BP group, and 3% PP group. The entire trial period lasted 42 days. The results show that the average daily feed intake, average daily gain, and feed-to-gain ratio of the BP group and the PP group were not significantly different from those in the CON group (p > 0.05). Adding BP to the diet significantly reduced the proportion of liver and giblets (p < 0.05). Adding PP to the diet significantly reduced the proportion of liver, while the proportion of gizzard significantly increased (p < 0.05). The pH24h and L* of breast muscles were significantly lower in the PP group than in the CON group (p < 0.05). The water-holding capacity of the leg muscles in the BP group and the PP group was significantly lower than that in the CON group (p < 0.05). The crude protein content of breast muscle and the ether extract content of leg muscle in the BP group were significantly lower than those in the CON group (p < 0.05). In conclusion, the addition of 3% BP and PP to broiler chickens' diets had no adverse effects on growth performance or meat quality.

Evaluation of Growth Performance, Carcass Composition and Meat Quality of Broiler Chickens Fed Rations Containing Guar Meal and Enzyme Preparations

The study aimed to determine the growth performance, carcass composition, and meat quality of broiler chickens fed rations with different levels of guar meal and feed enzymes. Two hundred and forty one-day-old, sexed chicks were assigned to six equinumerous groups (C4, C8, R4, R8, V4 and V8), with five subgroups each. The birds were fed ad libitum with Starter (1-21 days of life), Grower (22-35 days of life) and Finisher (36-42 days of life) comprised of maize meal, soybean meal, guar meal (4 or 8%), oil, and mineral and vitamin additives, in a two-factor pattern as follows: groups C4 4% guar meal without enzyme preparation, C8 8% guar meal without enzyme preparation, R4 4% guar meal + R enzyme preparation, R8 8% guar meal + R enzyme preparation, V4 4% guar meal + V enzyme preparation, V8 8% guar meal + V enzyme preparation. It was demonstrated that a higher (8%) percentage of guar meal in broiler chicken rations significantly contributed to body weight reduction (by 8%) and increased feed conversion ratio (by 3%). Simultaneously, it reduced the dressing percentage (by 2%) and carcass muscularity (by 3%). Feed rations supplemented with enzymes (R or V) did not improve growth performance and did not impact the dressing percentage, carcass muscularity and fatness. The use of 8% guar meal in broiler chicken feed decreased the crude ash content in the muscles, which, by contrast, increased due to enzyme supplementation. A higher level of guar meal reduced the content (by 4%) and fat quality measured as the ratio between n6:n3 PUFA and the index of AI, TI and HH. The results of the study imply that 4% guar meal inclusion in feed rations for broiler chickens not supplemented with enzymes should be recommended.