Effects of Housing Condition, Feeding Style and Age on Meat Colour, and Some Carcass Characteristics in Eastern Anatolian Red Bulls

This study was conducted to evaluate the muscles of the brisket region of the Eastern Anatolian Red (EAR) bulls in different ages subjected to different housing conditions and feeding style, and to determine the relationships among carcass traits, meat colour parameters and carcass measurements. Totally 25 bulls between 15 and 24 m of age were allocated to five groups (G1,G2,G3,G4,G5) according to feeding type, housing condition and age. The bulls were weighed fourteen days apart, feed consumption measurements were taken every morning, and slaughtered after 130 days of fattening. The differences were significant among G1-G3 for pelvic fat, total groups for conformation, among G1,G2-G3,G4,G5 for marbling, among G1,G2,G3-G4,G5 for LD area, among G1-G3,G5 for degree of fatten, among G1,G5-G2 for fat thickness over (LD) Longissimus Dorsi. The differences were significant in terms of meat colour parameters such as lightness (L*) in G1,G2,G3-G4,G5 and hue value (H*) in G1-G2,G3,G4,G5. Also, the differences among the groups are significant in terms of carcass length and width of the round. The correlation coefficients of carcass characteristic, colour score and conformation are negative with lightness (L*) and yellowness (b*). Degree fatten had a positive correlation with marbling score. Conformation were positively correlated with carcass length. Carcass ribeye area and L* showed a more desirable result in the G4 and G5 groups compared to other groups. Assessing the accumulated data of carcass traits with carcass components including carcass measurement during the slaughter or later phases of slaughter, it may be possible to use as a marker for the determining beef quality in EAR bulls.

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Effect of boars own performance on progeny fattening and carcass traits in two different environments

Biotechnology in Animal Husbandry ◽

10.2298/bah0404055b ◽

2004 ◽

Vol 20 (3-4) ◽

pp. 55-63 ◽

Cited By ~ 4

Author(s):

I. Bahelka ◽

P. Fľak ◽

Anna Lukácová

Keyword(s):

Performance Test ◽

Average Daily Gain ◽

Carcass Traits ◽

Live Weight ◽

Feed Consumption ◽

Muscle Area ◽

Eye Muscle ◽

Carcass Parameters ◽

Performance Traits ◽

Progeny Performance

The effect of own performance traits of meat breed boars on fattening and carcass parameters of progeny in two different test stations (Bucany and Nitra) was evaluated. Own performance traits of boars were average daily gain (ADG) from birth to 100 kg live weight, backfat thickness (BF) and lean meat content (LMC) in field conditions. Progeny of boars was housed in pairs (gilt and barrow) and fed standardized feed mixture semi ad libitum. Progeny test lasted from 30 to 100 kg live weight. There were evaluated following parameters: ADG and feed consumption/kg gain (FC) at test from 30 to 100 kg live weight, slaughter weight (SW), proportion of meaty cuts (PMC) proportion of ham (PHAM), eye muscle area (EMA), and BF. At Bucany and Nitra was found the effect of genotype of boars on progeny BF and/or FC respectively. Better tested boars from own performance test individually as well as a group achieved in progeny better fattening and carcass traits than worse tested boars at Bucany (+33 g ADG, -0.21 cm BF, +2.34 % PMC). Progeny performance from better evaluated boars at Nitra did not exceed the progeny performance from worse tested boars. There was found significant effect of dams on progeny performance.

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Relationship of the bovine IGF1, TG, DGAT1 and MYF5 genes to meat colour, tenderness and cooking loss

Journal of the Hellenic Veterinary Medical Society ◽

10.12681/jhvms.18879 ◽

2018 ◽

Vol 69 (3) ◽

pp. 1077 ◽

Cited By ~ 1

Author(s):

S. ARDICLI ◽

H. SAMLI ◽

D. DINCEL ◽

B. EKIZ ◽

H. YALCINTAN ◽

...

Keyword(s):

Muscle Metabolism ◽

Bovine Insulin ◽

Cooking Loss ◽

Farm Animals ◽

Meat Production ◽

Nucleotide Polymorphisms ◽

Production Traits ◽

Colour Parameters ◽

Meat Colour ◽

Meat Samples

Bovine insulin-like growth factor 1 (IGF1), thyroglobulin (TG), diacylglycerol-O-acyltransferase 1 (DGAT1) and myogenic factor 5 (MYF5) genes play an important role in the physiology of lipid and muscle metabolism and are therefore considered as candidate genes for meat production traits in farm animals. The objectives of this study were to investigate single nucleotide polymorphisms (SNPs) in IGF1, TG, DGAT1 and MYF5 genes and to evaluate whether these polymorphisms affected meat colour, tenderness and cooking loss in Holstein cattle. Initially, the SNPs were detected by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) method. Meat samples (N= 50) derived from M. longissimus thoracis et lumborum (LTL) were used in the current study. Significant differences in variations of meat colour parameters were observed at 24 hours post-mortem. IGF1 was associated with colour parameters of a* and chroma values. In addition, effects of TG were statistically significant on L* and a* values, while, effects of MYF5 were significant on a* value. There was no association of the tested SNPs with meat pH, tenderness and cooking loss. The results presented here may give the valuable information for improving meat colour in cattle.

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The relationship between the rumen microbiome and carcass merit in Angus steers

Journal of Animal Science ◽

10.1093/jas/skaa287 ◽

2020 ◽

Vol 98 (9) ◽

Author(s):

Taylor R Krause ◽

Jeferson M Lourenco ◽

Christina B Welch ◽

Michael J Rothrock ◽

Todd R Callaway ◽

...

Keyword(s):

Lipid Content ◽

Metabolic Pathways ◽

Carcass Traits ◽

Subcutaneous Fat ◽

Intramuscular Fat ◽

Rrna Gene ◽

Marbling Score ◽

Microbial Composition ◽

Fat Depots ◽

Rumen Microbiome

Abstract The objective of this study was to explore the relationships between ruminal microbial populations from Angus steers that were divergent in carcass traits related to adipose accumulation. Twenty-four feedlot-finished Angus steers (age: 538 ± 21 d; body weight following lairage: 593.9 ± 43.7 kg) were slaughtered, and ruminal contents and carcass data were collected. Ruminal microbial deoxyribonucleic acid (DNA) extraction and 16S ribosomal ribonucleic acid (rRNA) gene sequencing were performed to determine microbial relative abundances, to estimate microbial diversity, and to predict microbial metabolic pathways. A variety of correlation analyses and one-way ANOVA were performed to investigate the relationships between the rumen microbiome and carcass traits. Marbling score (P = 0.001) and longissimus lipid content (P = 0.009) were positively correlated to Chao1 Richness Index, suggesting that increased intramuscular fat was associated with increased numbers of ruminal microbial species. The phyla Tenericutes and TM7 were negatively correlated (P ≤ 0.05) to marbling score and longissimus lipid content, indicating that lower abundances of these phyla may be associated with improvements in intramuscular fat content. Greater abundance of the bacterial family S24-7 was positively correlated (P = 0.002) to marbling score. Analysis by marbling classification revealed further linkages to microbial richness (P ≤ 0.063), diversity (P = 0.044), and S24-7 (P < 0.001) populations. Computational prediction of the microbial metabolic pathways revealed no differences (P ≥ 0.05) in metabolic pathway expression in rumen microbes between steers in the high- and low-marbling classes. Several phyla, families, and genera were positively correlated (P ≤ 0.05) to both rib fat thickness and yield grade. Collectively, our results suggest that microbial composition is associated to differing performance in carcass adipose traits. Overall, most of the bacterial taxa correlated to the intramuscular and subcutaneous fat depots did not overlap, suggesting the microbial population end products likely impacted adipose accumulation largely via separate adipogenic pathways of the host animal.

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Comparison of PRKAG3 and RYR1 gene effect on carcass traits and meat quality in Slovenian commercial pigs

Czech Journal of Animal Science ◽

10.17221/6/2009-cjas ◽

2010 ◽

Vol 55 (No. 4) ◽

pp. 149-159 ◽

Cited By ~ 3

Author(s):

M. Škrlep ◽

T. Kavar ◽

M. Čandek-Potokar

Keyword(s):

Meat Quality ◽

Carcass Traits ◽

Drip Loss ◽

Negative Effects ◽

Large White ◽

Maternal Line ◽

Paternal Line ◽

Genotype Frequencies ◽

Subjective Score ◽

Colour Parameters

The effect of polymorphisms at PRKAG3 (R200Q and I199V) and RYR1 (R615C) genes on carcass traits and meat quality was examined in a sample of 257 commercial pigs, crosses of Landrace × Large White as maternal line and Pietrain (N = 96), Pietrain × Landrace (N = 42) or Pietrain × Hampshire (N = 119) as paternal line. Pigs were genotyped (PCR-RFLP) and traits of interest were measured (which included carcass and ham weight, measurements of fatness, meatiness, ultimate pH, colour parameters and drip loss). The observed genotype frequencies at PRKAG3 gene were 9.7%, 38.9%, 32.7%, 6.2% and 12.5% for R/R-I/I, R/R-I/V, R/R-V/V, Q/R-I/V and Q/R-V/V genotype, respectively. RYR1 genotype frequencies were 57.2% for N/N and 42.8% for N/n genotype. Studied polymorphisms exhibited a significant effect on meat quality, but mainly an insignificant effect on carcass traits. No significant interaction between PRKAG3 and RYR1 was found. Carriers of RYR1 mutant allele “n” had less intense longissimus dorsi muscle colour (subjective score, Minolta L* and b*) and higher drip loss. Regarding PRKAG3, the ultimate pH decreased and Minolta L*, a*, b* and drip loss increased in the following order: R/R-I/I, R/R-I/V, R/R-V/V, Q/R-I/V and Q/R-V/V, according to the presence of 199I and absence of 200Q alleles. The study shows that the I199V polymorphism is an important source of variation in pigs free of 200Q. In particular the 199I proves beneficial for meat quality. The results of combining the RYR1 and PRKAG3 genotypes indicate that R/R-I/I genotype could be used in counterbalancing the negative effects of “n” allele on meat quality.

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Usefulness of selected methods of colour change measurement for pork quality assessment

Czech Journal of Food Sciences ◽

10.17221/191/2010-cjfs ◽

2011 ◽

Vol 29 (No. 3) ◽

pp. 212-218 ◽

Cited By ~ 11

Author(s):

T. Karamucki ◽

J. Gardzielewska ◽

A. Rybarczyk ◽

M. Jakubowska ◽

W. Natalczyk-Szymkowska

Keyword(s):

Quality Assessment ◽

Meat Quality ◽

Colour Change ◽

Industrial Process ◽

Chemical Components ◽

Pork Quality ◽

Before And After ◽

Longissimus Lumborum ◽

Colour Parameters ◽

Meat Colour

A few selected methods of the meat colour change determination were compared with regard to their usefulness in the assessment of the quality of minced pork. The study was carried out on 128 samples of the muscle longissimus lumborum, taken from 128 carcasses weighing 70–105 kg (equal number of both sexes – 64), obtained from pigs slaughtered in an industrial process line. The relationships were determined between the meat quality traits (concentrations of basic chemical components in the meat, colour, sensory analysis of wateriness and firmness, WHC and pHu), and the changes in colour parameters measured in CIELAB and CIELCh scales, total colour change (ΔE*), and the changes determined by Karamucki using the modified Kortz method. It was found that the most useful method for the quality assessment was the Kortz method modified by Karamucki, used to determine the stability of the meat colour (expressed as % colour change) and based on the measurements of absorbance at wavelengths 580 nm and 630 nm, before and after the change of colour. Out of the meat colour parameters, the most useful for assessing the meat quality were the changes in redness (a*) – CIELAB scale, and hue angle hº – CIELCh scale. The changes in colour determined by the aforementioned methods were a better indicator of the pork quality than the total colour change (ΔE*).

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Effect of dietary supplementation of turmeric (Curcuma longa) powder on the growth performance and carcass traits of broiler chicks

SAARC Journal of Agriculture ◽

10.3329/sja.v13i1.24191 ◽

2015 ◽

Vol 13 (1) ◽

pp. 188-199 ◽

Cited By ~ 3

Author(s):

MA Mondal ◽

T Yeasmin ◽

R Karim ◽

M Nurealam Siddiqui ◽

SM Raihanun Nabi ◽

...

Keyword(s):

Weight Gain ◽

Feed Efficiency ◽

Body Weight Gain ◽

Curcuma Longa ◽

Carcass Traits ◽

Feed Consumption ◽

Feed Additive ◽

Average Weight ◽

Broiler Chicks ◽

June July

The present study was aimed to investigate the dietary effect of different levels of turmeric (Curcuma longa) powder on the performance of broiler during summer (June-July), 2013. Four experimental rations designated as T0, T1, T2 and T3 having 0%, 0.5%, 1.0% and 1.5% Turmeric (Curcuma longa) powder were fed to 120 broiler chicks (Ross 308), randomly distributed into 12 replicates, so as to have 3 replicates per treatment and 10 chicks per replicate. Average weight gain, feed consumption, feed efficiency, dressing yield and survivability were used as criteria of response to feeding turmeric powder. Organs weight including heart, liver and gizzard were also recorded. The mean body weight gain and average feed efficiency (feed gain-1) per broiler significantly increased (P<0.01) by turmeric supplemented feed compared to control feed. The average feed consumption and survivability of broiler chick non- significantly (P>0.05) improved due to by turmeric supplementation in the diets. Inclusion of turmeric powder caused slightly increased the carcass traits of broiler chicks i.e., average weight of liver, heart and gizzard but the differences were non-significant (P>0.05). A significant decrease (P<0.01) in abdominal fat pad and significant increase (P<0.05) in dressing yield was observed in chickens fed the turmeric supplemented diets. The results of the present study suggest that the use of turmeric (Curcuma longa) powder as feed additive at a level of 0.5% enhances the growth performances and carcass yield of broiler chicks.SAARC J. Agri., 13(1): 188-199 (2015)

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Effects of gender of dairy or beef cattle and the number of pair of permanent incisors on carcass traits

MATEC Web of Conferences ◽

10.1051/matecconf/201819203050 ◽

2018 ◽

Vol 192 ◽

pp. 03050

Author(s):

Kunya Tuntivisoottikul ◽

Rutcharin Limsupavanich

Keyword(s):

Beef Cattle ◽

Dairy Cattle ◽

Statistical Model ◽

Carcass Traits ◽

Descriptive Statistics ◽

Marbling Score ◽

Slaughter Weight

Effects of group of cattle (gender of dairy or beef cattle) and number of pair of permanent incisors (0-4 pairs) on carcass traits were investigated. Data collected from 2,059 carcasses were obtained from beef cattle cooperative in 2016. Carcass traits included slaughter weight (wt.), hot carcass wt., percentage of hot or chilled carcass wt., chilling loss, skin wt., and marbling score. Factors included group of cattle and number of pair of permanent incisors observed in each cattle group, while slaughter wt. was a co-variable in the statistical model. Descriptive statistics were used to analyze marbling score. Results showed that group of cattle affected slaughter wt., hot carcass wt., percentage of hot or chilled carcass wt., skin wt. (P<0.0001), and chilling loss (P<0.05). Number of pair of permanent incisors within each cattle group affected all carcass traits (p<0.05), except chilling loss (p>0.05). Female and male beef cattle in all ages had higher hot carcass wt. and percentage of hot or chilled carcass wt. than female and male dairy cattle. The highest marbling score of 5 was found in female and male beef and female dairy cattle with 4 pairs of permanent incisors. However, majority of cattle had marbling score 2.

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Effect of different levels of roasted guar (Cyamopsis tetragonoloba L.) korma with or without ß-mannanase supplementation on performance and carcass traits of broilers

Indian Journal of Animal Research ◽

10.18805/ijar.b-3687 ◽

2019 ◽

Author(s):

S.M. Wankhede ◽

A.D. Deshmukh ◽

D.H. Rekhate ◽

S.J. Manwar ◽

S. Sajid Ali ◽

...

Keyword(s):

Body Weight Gain ◽

Carcass Traits ◽

Nitrogen Retention ◽

Nutrient Digestibility ◽

Feed Consumption ◽

Broiler Chicks ◽

Cyamopsis Tetragonoloba ◽

Dry Matter Digestibility ◽

Commercial Broiler ◽

Different Levels

An experiment was conducted to evaluate the effect of different levels of roasted guar korma with or without mannanase supplementation on performance and carcass traits of broilers. Nine hundred and sixty day old commercial broiler chicks (Vencobb-400 strain) were divided into sixteen treatment groups of 60 each for six weeks. The diet without roasted guar korma served as control. The rest of the diets were formulated by incorporating 10%, 12.5%, 15%, 17.5 % and 20% levels of roasted guar korma, partially replacing soybean meal with and without enzyme (ß-mannanase) at two levels (500 g/t and 750 g/t). Body weight gain at the starter phase was found to be non significant however at the finisher phase the differences were significant (P less than 0.05) for T2 (563.35 g) and T5 (533.55 g) than the rest of the groups including control. Differences of feed consumption were significant (P less than 0.01) at the end of starter as well as finisher phases whereas FCR differences were found to be non-significant. Dry matter digestibility was observed significantly better in T5 group. Significantly (P less than 0.01) better nitrogen retention was observed in T5 and T6 groups than the groups having higher levels of roasted guar korma. Eviscerated weight differed significantly (P less than 0.01) whereas non-significant differences were observed for giblet per cent, abdominal fat per cent, edible meat per cent and dressing per cent. It was concluded that 12.5 per cent of roasted guar korma with supplementation of ß mannanase @ 500g/t can be safely added in the broiler diet without any adverse effect on performance, nutrient digestibility as well as carcass trait.

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Carcass and meat quality characteristics of South African indigenous chickens

Indian Journal of Animal Research ◽

10.18805/ijar.11159 ◽

2016 ◽

Author(s):

Ramokone Motsepe ◽

Monnye Mabelebele ◽

David Norris ◽

David Brown ◽

Jones Ngambi ◽

...

Keyword(s):

Meat Quality ◽

Carcass Traits ◽

Quality Characteristics ◽

Chicken Breast ◽

Breast Meat ◽

Indigenous Chicken ◽

Male And Female ◽

Indigenous Chickens ◽

Commercial Grower ◽

Colour Parameters

The present study was performed to determine the carcass and meat quality characteristics of male and female Ovambo and Potchefstroom koekoek (PK) indigenous chickens. A total of 320 male and female day old Ovambo and PK were randomly assigned to a 2 (breed) × 2 (sex) factorial arrangement in a completely randomised design. The chickens were raised from day-old and fed on a commercial grower diet containing 11.5 MJ/ME kg DM and 20 % crude protein until 18 weeks of age. Carcass traits of the Ovambo and PK were similar; however, male chickens had higher carcass traits than their female counterparts. Breed, sex and time interactions influenced colour parameters of thigh and drumstick meat except redness (a*) and yellowness (b*) values of chicken breast meat. The pH varied significantly amongst the breeds, sex and time period. The sensory evaluations of the chicken breeds were observed to be similar. However, tenderness of the breast meat as measured by shear force was higher for PK than Ovambo chickens. Fatty acid profiles of the chickens were not affected by breed or sex. The ratios of n-6 and n-3 fatty acids were significantly lower in both breeds which are desirable in reducing the risk of many diseases. Ovambo and PK chickens showed good meat quality traits. This information can assist in promoting production of indigenous chicken lines in South Africa.

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Genetic parameters among growth and carcass traits of Canadian Charolais cattle

Canadian Journal of Animal Science ◽

10.4141/a04-019 ◽

2004 ◽

Vol 84 (4) ◽

pp. 589-597 ◽

Cited By ~ 24

Author(s):

D. H. Crews ◽

Jr., M. Lowerison ◽

N. Caron ◽

R. A. Kemp

Keyword(s):

Fixed Effects ◽

Genetic Parameters ◽

Growth Traits ◽

Carcass Traits ◽

Genetic Correlations ◽

Subcutaneous Fat ◽

Field Performance ◽

Pedigree Data ◽

Marbling Score ◽

Muscle Area

Genetic parameters for three growth and five carcass traits were estimated for Charolais using a combination of carcass progeny test, purebred field performance and pedigree data. Heritabilities and genetic and residual correlations were derived from variance components for birth weight (BWT, n = 54 221), 205-d weaning weight (WT205, n = 31 384), postweaning gain (PWG, n = 19 403), hot carcass weight (HCW, n = 6958), average subcutaneous fat thickness (FAT, n = 6866), longissimus muscle area (REA, n = 6863), marbling score (MAR, n = 6903) and estimated carcass lean yield percentage (PLY, n = 6852) with an animal model (n = 78 728) and restricted maximum likelihood. Breed of dam and contemporary group appropriate to each trait were included as fixed effects in the model, whereas random effects included direct genetic for all traits, maternal genetic for BWT and WT205, and maternal permanent environmental for WT205. Carcass traits were adjusted to a constant harvest age of 425 d. Heritability estimates of 0.53, 0.22, and 0.21 were obtained for direct components of BWT, WT205, and PWG, respectively, and maternal heritabilities were 0.16 and 0.10 for BWT and WT205, respectively. Direct × maternal genetic correlations for BWT (-0.49) and WT205 (-0.35) were negative. Heritabilities for HCW, FAT, REA, MAR, and PLY were 0.33, 0.39, 0.43, 0.34, and 0.46, respectively. Genetic correlations among direct effects for growth traits were moderately positive and generally uncorrelated with maternal effects across traits. Lean and fat deposition in the carcass generally had negative, unfavorable genetic correlations, although improvement in lean yield and marbling score may not be strongly antagonistic. Genetic correlations of direct and maternal components of growth traits with carcass traits suggested that selection for increased growth rate would not be antagonistic to improvement in carcass yield or meat quality. Key words: Carcass, Charolais, correlation, genetic parameters, growth

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