A Comparative study of some carcass characteristics of Sudan Desert sheep and goats

1972 ◽  
Vol 14 (3) ◽  
pp. 351-357 ◽  
Author(s):  
E. S. E. Gaili ◽  
Y. S. Ghanem ◽  
A. M. S. Mukhtar
Keyword(s):  
Chemical Composition ◽  
Muscle Fibre ◽  
Stomach Content ◽  
Treatment Effect ◽  
Age Groups ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Taste Panel ◽  
Sheep And Goats ◽  
Dressing Percentage

SUMMARYMale Sudan desert sheep and goats of three age-groups, young, yearling and mature, were used to compare some of their carcass characteristics when reared under range conditions and in feedlot. Carcass traits studied were the dressing percentage, the percentage of bone in the carcass and wholesale cuts, chemical composition of meat, and muscle fibre thickness. An organoleptic test was carried out on meat from the fattened animals.The dressing percentage, percentage of edible meat, chemical fat and muscle fibre thickness were increased by fattening in the feedlot. Increases were also observed with advancing age, but the effect was more marked in fattened than unfattened animals. Goats yielded a higher carcass weight per unit live weight than sheep, the stomach content and skin weight relative to live weight being greater in the sheep than in the goats. Goats were shown to possess less chemical fat and thicker fibres than sheep. Taste panel scores revealed a highly significant (P < 0·005) treatment effect on tenderness and a significant (P = 0·5) treatment effect on juiciness in relation to age and species. Taste panel flavour scores were not associated with animal age or species.

scholarly journals The influence of age and sex on carcass characteristics and chemical composition of the longissimus thoracis et lumborum muscle in wild boars (<i>Sus scrofa</i>)

2021 ◽  
Vol 64 (1) ◽  
pp. 199-210
Author(s):  
Tomasz Żmijewski ◽  
Monika Modzelewska-Kapituła
Keyword(s):  
Chemical Composition ◽  
Sus Scrofa ◽  
Age Groups ◽  
Carcass Characteristics ◽  
Quality Parameters ◽  
Carcass Quality ◽  
Wild Boars ◽  
Adult Females ◽  
Bone Content ◽  
Age And Sex

Abstract. The aim of this study was to determine the influence of age and sex on carcass characteristics and the chemical composition of the longissimus thoracis et lumborum (LTL) muscle in wild boars (Sus scrofa). Carcass quality parameters varied significantly depending on age and sex, whereas the protein and collagen contents in the muscle were affected by animal age. The carcasses of male yearlings and adults were characterised by the highest processing suitability, which can be attributed to the highest percentage of lean meat in the carcass and a moderate fat and bone content. A higher fat content was found in carcasses of females from all age groups, and a lower bone content was found in yearlings and adult females. The protein content was the highest in the LTL muscle of adult boars, and the collagen content was the highest in piglets; thus, the chemical composition of the muscle was most desirable in adult wild boars and least desirable in piglets.

A COMPARISON OF FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF CHARBRAY × HEREFORD WITH HEREFORD STEERS

1959 ◽  
Vol 39 (1) ◽  
pp. 14-20 ◽  
Author(s):  
M. A. MacDonald ◽  
S. B. Slen ◽  
H. J. Hargrave
Keyword(s):  
Muscle Fibre ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Longissimus Dorsi ◽  
Average Thickness ◽  
Feedlot Performance ◽  
Commercial Feed ◽  
Significant Difference ◽  
Dressing Percentage

Bulls of Charbray breeding and Hereford bulls were turned out with a commercial herd of Hereford cows in southwestern Saskatchewan in 1956. It was assumed the cows were bred at random. At weaning in 1957, 25 Charbray × Hereford (crossbred) steers and 25 Hereford steers were selected at random, weighed and removed to a commercial feed lot where they were fed in two groups to a desirable slaughter finish.Crossbred steers were heavier at weaning, gained more per day on feed and returned a higher hot carcass weight with a greater eye of lean area than Hereford steers. There was no significant difference between groups in dressing percentage, average thickness of rib fat, TDN consumption per pound of liveweight gain, or average muscle fibre diameters of samples taken from m. longissimus dorsi. The Hereford group produced a higher proportion of choice carcasses than the Charbray × Hereford group.

Comparison of Fattening, Slaughtering and Carcass Characteristics of Different Genotype Lambs Grown in Turkey

2020 ◽  
Author(s):  
Engin Yaralı
Keyword(s):  
Weight Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Carcass Yield ◽  
Live Weight Gain ◽  
Fattening Performance ◽  
Animal Material ◽  
Dressing Percentage ◽  
Fattening Period

In this study, it was aimed to determine the fattening performance, slaughter and carcass characteristics of lambs of Eþme Kývýrcýðý (EKIV), Bursa Kývýrcýðý (BKIV), Çine Çaparý (CC) and Karya (KAR) sheeps. A total of 37 male lambs at the age of 3.5 months formed the animal material. Fattening period is 56 days. During slaughtering, head, feet, skin, liver, hot carcass weights were determined and hot carcass yield was calculated. Each carcass was cut out into 7 parts. The overall average of daily weight gain was 144.82 g. While the highest daily live weight gain was observed in the KAR, the CC had the lowest value. The total share of the rump, shoulders, back and arms are 57.65%, 66.85%, 65.80% and 67.12% for CC, EKIV, KAR and BKIV, respectively. The effect of the genotype on all the characteristics other than cooling loss is important. In terms of dressing percentage value, the ranking was CC, BKIV, KAR and EKIV from the highest to the lowest.

Influence of stocking density on the performance, carcass characteristics,hemato-biochemical indices of Vanaraja chickens

2016 ◽  
Author(s):  
Shailesh Kumar Gupta ◽  
Kumaresh Behera ◽  
C. R. Pradhan ◽  
Aditya Prasad Acharya ◽  
Kamdev Sethy ◽  
...  
Keyword(s):  
Stocking Density ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Blood Cholesterol ◽  
Feed Consumption ◽  
Heart Weight ◽  
Feed Conversion ◽  
Hematological Indices ◽  
Significant Difference ◽  
Dressing Percentage

A total 90 Vanaraja experimental birds were divided into three respective groups based on floor density viz., G1 (16 birds/m2), G2 (12 birds/m2) and G3 (8 birds/m2). No significant difference in average live weight and carcass weight was observed between groups. Average feed consumption, feed conversion ratio (FCR) and dressing percentage in G2 and G3 was significantly (P<0.05) higher as compared to G1. There were no significant effect (P>0.05) of stocking density in the carcass characteristics except the heart weight. There were non significant differences among groups for total protein, albumin, globulin and A:G ratio. Blood glucose was significantly (P>0.05) higher in group G1 as compared to G2 and G3. Blood cholesterol level increased with increase in stocking density but not significantly. Blood parameters eosinophil, monocyte, basophil counts and H:L ratio were not affected by the stocking density. Hb concentration increased non-significantly with increased stocking density. Vanaraja birds from 8 birds/m2 to 12 birds/m2 give the better growth performance, FCR and dressing percentage without change in blood biochemical and hematological indices.

scholarly journals Estimation of carcass characteristics in young beef cattle

1975 ◽  
Vol 47 (5) ◽  
pp. 385-444
Author(s):  
Hilkka Ruohomäki
Keyword(s):  
Stepwise Regression ◽  
Least Squares Method ◽  
Age Groups ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Accurate Estimation ◽  
Carcass Quality ◽  
Bull Calves

In the present study the main objectives were to determine whether sufficiently accurate estimation of live weight, carcass weight and carcass composition with live measurements is possible, and whether an accurate estimation of carcass composition with any other procedure than total carcass dissection is possible. The material consisted of 205 1-year old steers and bulls and 174 bull calves. Within experiment each trait of each animal was corrected for age, breed and feeding with a correction factor obtained with the least squares method. In the stepwise regression analysis the results for both age groups were analysed separately. From live measurements the best estimators in both age groups were width of chest, heart girth and natural length. The most reliable predictor of meat quantity was carcass weight. Revalue was 96 % for both age groups. In estimation of meat percentage the Revalue obtained for the olds with cutting results of fore shanks was 56 %, the respective value for the 1-year olds was considerably lower. With 1-yearolds the carcass weight and some byproducts gave the highest estimations for the quantity and percentage of fat, R2 were 62 % and 50 % respectively, and for the 14-yearolds the kidney fats and the cutting results of flanks gave the highest estimations, R2 were 70 % and 59 % respectively. For the quantity and percentage of bone the R2 for the 1-yearolds obtained with cutting results of shanks were 68 % and 55 % respectively, and for the 14-year olds 82 % and 70 % respectively. When the cutting results of the fore and hind quarters were used as estimators the R2 obtained for all the traits were higher in both age groups than with any other estimator, R2 obtained with carcass quality scores remained lower.

scholarly journals Effects of genetic control of subcutaneous fat deposition via using restricted selection indexes on live Performance and carcass characteristics of Pekin ducklings

2000 ◽  
Vol 43 (1) ◽  
pp. 69-78
Author(s):  
K. A. Shahin ◽  
A. R. Shemeis ◽  
O. Y. Abdallah ◽  
K. Saleh
Keyword(s):  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Live Performance ◽  
Pekin Ducks ◽  
Potential Gain ◽  
Fat Level ◽  
Selection Indexes ◽  
Dressing Percentage ◽  
Restricted Selection

Abstract. Estimates of phenotypic and genetic parameters for live Performance and detaiied dissection traits of body components and carcass tissues in Pekin ducks were calculated and used to construct selection indexes. The expected reduction in potential gain in live weight, dressing percentage and carcass characteristics resulting from restricting change in subcutaneous fat level to zero were assessed. The aggregate genotype measurements were weight at slaughter, dressing percentage and percent subcutaneous fat. The index measurements were weight at hatching, weight at slaughter, weight gain, breast width, breast length and breast circumference. The restricted indexes as compared with the unrestricted would lead to minimum reduction in potential gain of 29.4% in total net merit, 96.4% in weight at slaughter, 49.0% in dressing percentage, 74.0% in dissected side weight and 75.0% in muscle to bone ratio. The potential reduction in percent abdominal fat and percent bone in side was decreased by at least 38.5% and 80.2%, respectively. Absolute genetic response results showed that selecting for breast width alone (rTI = 0.79) would be recommended for birds with substandard levels of SCF, whereas use of the restricted index containing weight at hatching and breast width (rTI = 0.54) would be advised for individuals with Standard fatness.

scholarly journals Effect of age on slaughterhouse by-products of indigenous cattle of Bangladesh

2013 ◽  
Vol 42 (1) ◽  
pp. 62-66 ◽  
Author(s):  
MM Ali ◽  
MM Hossain ◽  
S Akhter ◽  
MS Islam ◽  
MA Hashem
Keyword(s):  
Chemical Composition ◽  
Live Weight ◽  
Carcass Weight ◽  
Average Weight ◽  
Meat Industry ◽  
Age Group ◽  
Indigenous Cattle ◽  
Dressing Percentage ◽  
Effect Of Age ◽  
By Products

The present study was conducted to investigate the effect of age on slaughterhouse by-products and their chemical composition of indigenous cattle of Bangladesh. Live weight, warm carcass weight and dressing percentage of different age group (T1= 0 Tooth, T2= 2 Teeths, T3= 4 Teeths, T4= 6 Teeths and T5= 8 Teeths) of indigenous cattle were estimated. Average live weight and warm carcass weight of indigenous cattle was 167.64±79.93 kg and 84.83±47.88 kg, respectively on which age has significant effect. The average dressing percentage of indigenous cattle was 48.99±4.84. The average weight (kg) of inedible by-products eg. blood, hide, tail, scrotum, penis, cannon, horn, ear and tail was 6.35±0.69, 14.02±1.66, 0.34±0.03, 0.27±0.02, 0.28±0.03, 2.74±0.22, 0.33±0.04 and 0.17±0.02, respectively on which age has significant effect. The average weight (kg) of edible by-products eg. liver, heart, kidney, lung, brain, spleen, empty stomach, empty intestine, head and tongue was 2.40±0.22, 0.55±0.06, 0.35±0.04, 1.43±0.14, 0.33±0.01, 0.46±0.04, 6.32±0.74, 4.77±0.52, 8.21±0.78 and 0.48±0.04, respectively on which age has significant effect. The chemical composition of edible by-products was more or less similar to the main products of meat industry. DOI: http://dx.doi.org/10.3329/bjas.v42i1.15784 Bang. J. Anim. Sci. 2013. 42 (1): 62-66

scholarly journals Effects of Feeding Distillers Dried Grains with Solubles (DDGS) with or without Enzymes on Carcass Characteristics of Indigenous Chicken

2020 ◽  
pp. 127-136
Author(s):  
Ashim Kumar Saikia ◽  
Robin Bhuyan ◽  
Bibeka Nanda Saikia ◽  
Jog Dev Mahanta ◽  
Subhalakshi Borah ◽  
...  
Keyword(s):  
Carcass Traits ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Basal Diet ◽  
Chemical Compositions ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Organoleptic Evaluation ◽  
Treatment Groups ◽  
Dressing Percentage

Aims: The present investigation aimed at assessing the effects of feeding graded levels of DDGS with or without enzymes on the carcass characteristics of indigenous chicken. Study Design:  The experiment was conducted in a Completely Randomized Design (CRD). Place and Duration of Study: Department of Animal Nutrition, College of Veterinary Science, Guwahati-22, Assam for a period of 182 d (13 fortnights) between January 2018 and June 2018. Methodology: A total of 180 21 d old indigenous chicks were divided into six groups: T1, T2, T3, T4, T5 and T6 each with 30 chicks. The birds of T1, T3 and T5 were fed a basal diet containing 0, 10 and 20 per cent DDGS while the birds in T2, T4 and T6 were fed the same basal diet as that of T1, T3 and T5, respectively, but were additionally supplemented with a commercial exogenous multi-enzyme preparation. The feeding trial was conducted for a period of 182 d (13 fortnights) excluding a metabolic trial for a period of 8 days. At the end of the experiment, four birds from each treatment group were randomly selected, slaughtered and processed and different carcass traits viz. live weight, dressing percentage, relative weights of breast, thigh, drumsticks, liver, heart, gizzard, giblets, head and shank in relation to pre-slaughtered live weights were recorded. The chemical composition and organoleptic evaluation of meat samples from different treatment groups were also conducted. Results: The percent dressing and eviscerated yields of experimental birds under different treatment groups were ranged from 66.81±0.37 to 67.68±0.41 and 71.74±0.54 to 73.35±0.34, respectively. No significant (P ≥ .05) differences were observed in respect of relative weights of various carcass traits in relation to the live body weights, the chemical compositions of breast meat comprising of moisture, crude protein, ether extract and total ash and the mean scores for organoleptic evaluation comprising of colour, tenderness, flavor, juiciness and overall acceptance of the breast meat of experimental birds from different treatment groups. Conclusion: It is concluded that DDGS can be incorporated at 20% level in the rations of indigenous chicken for the economic gain without any adverse effect on dressing percentage as well as various carcass traits and organoleptic qualities.

PERFORMANCE AND CARCASS CHARACTERISTICS OF FINISHING BROILERS FED DIETS SUPPLEMENTED WITH COMBINATION OF PROBIOTICS (B. cereus) AND PREBIOTICS (MANNOSE [MOS])

2020 ◽  
Vol 19 (1) ◽  
pp. 186-194
Author(s):  
O. O. ONI ◽  
R. M. ADEBAYO ◽  
A. J. AKINDELE
Keyword(s):  
Carcass Characteristics ◽  
Live Weight ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Dressing Percentage ◽  
Dietary Treatments ◽  
Positive Effect

The experiment aimed to investigate effect of combination of probiotics and prebiotics on the performance and carcass characteristics of broilers at finishing phase. A total number of 300 day-old Anak broiler chicks were used to determine the response of broiler chicks to diets supplemented with probiotics (Bacillus cereus) and prebiotics (Mannose). The chicks were randomly allotted to four treatment groups of 75 birds with 25 birds per replicate in a completely randomized design. The four dietary treatments comprised 500ppm MOS; 250ppm B. cereus + 500ppm MOS; 500ppm B. cereus + 500ppm MOS and 750ppm B. cereus + 500ppm MOS, respectively. Results showed that feed conversion ratio decreased significantly (P< 0.05) from 1.21 for groups fed det supplemented with 250ppm B. cereus + 500ppm MOS to 1.05 for groups fed with 750ppm B. cereus + 500ppm MOS  as more prebiotics were added to the probiotics. Final live weight, eviscerated weight and dressing percentage were significantly (p<0.05) influenced by combination of probiotics and prebiotics in finishing broilers. Final live weight values ranged from 2453.30g in birds fed 250ppm B. cereus + 500ppm MOS  to 2488.30g in birds fed 750ppm B. cereus  + 500ppm MOS, while eviscerated weight ranged from 1063.30g at 500ppm MOS to 1396.70g  at 750ppm B. cereus + 500ppm MOS. The same trend was observed for dressing percentage, neck, whole gizzard and liver. It was concluded that combination of probitics and prebiotics at 750ppm B. cereus + 500ppm MOS had positive effect on growth performance and carcass qualities of broilers at finishing phase.  

scholarly journals Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
José Armando Partida-de-la-Peña ◽  
Tania Alejandra Casaya-Rodríguez ◽  
María Salud Rubio-Lozano ◽  
Rubén Danilo Méndez-Medina
Keyword(s):  
Factorial Design ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Longissimus Dorsi ◽  
Zilpaterol Hydrochloride ◽  
Fat Thickness ◽  
Dressing Percentage

Zilpaterol hydrochloride (ZH) supplementation (0 vs. 0.15 mg/kg live weight) was evaluated based on the carcass characteristics of Katahdin x Charollais (32 KCh) and Katahdin x Dorper (28 KD) crosses. Lambs were fed a mixed ration with 14% crude protein (CP) and 2.9 Mcal EM/kg DM. Data were analyzed using a completely randomized 2 x 2 factorial design: 2 genotypes (KCh and KD) and 2 ZH levels (0 and 0.15 mg/kg live weight). No interaction was found between ZH and the genotypes. Zilpaterol hydrochloride increased dressing percentage from 52.1 ± 0.3 to 53.7 ± 0.4% (P < 0.001). Animals that received ZH supplementation increased (P < 0.001) the area of their Longissimus dorsi (Ld) by 18.5% and had 7.5% more muscle, 6.0% less bone and 22.4% less fat compared with control lambs (P < 0.05). The breed of the sire had no effect on any of the variables studied. Final pH, fat thickness, conformation and linear carcass measurements did not change with ZH supplementation.

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