A STANDARD METHOD FOR JOINTING CAMEL CARCASSES WITH REFERENCE TO THE EFFECT OF SLAUGHTER AGE ON CARCASS CHARACTERISTICS IN NAJDI CAMELS. 3. PARTITION AND DISTRIBUTION OF CARCASS FAT

Forty male lambs of the mountain Greek breed were used to evaluate the effect of age at slaughter on carcass characteristics and composition. The slaughter of lambs was carried out at the age of 30, 45, 60, 75 and 90 days. The slaughter procedure, carcass dissection and carcass composition were realized according to the standard method of CIHEAM-AGRIMED programme. The results of this work showed that the lambs of different age groups did not differ in dressing percentage significantly. The proportion of muscles showed a tendency of increase with the increasing slaughter age but the differences were not significant. The proportion of total fat in carcass increased with the increasing slaughter age from 20.84 to 23.59% for the age group of 30 and 90 days, respectively (P < 0.05). On the contrary, as the age at slaughter increased, the proportion of bones decreased (P < 0.05). Subcutaneous, intermuscular, perinephric and pelvic fats increased with the slaughter age, but only the subcutaneous fat was influenced significantly (P < 0.05). Among the different commercial cuts proportions of long leg, first 5 ribs and shoulder decreased, while those of last 8 ribs-loin and breast-flank increased (P < 0.05). The overall results suggest that the slaughter age of lambs of the mountain Greek breed should be increased from the present ~45 days to more advanced age of 75 or 90 days in order to improve the farmers’ profits without serious negative effects on the quality of carcasses or meat of lambs.    

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Genetic and environmental influences on beef cattle production in Zambia 3. Carcass characteristics of purebred and reciprocally crossbred castrated males

Animal Science ◽

10.1017/s0003356100024028 ◽

1980 ◽

Vol 30 (2) ◽

pp. 245-252 ◽

Cited By ~ 7

Author(s):

W. Thorpe ◽

D. K. R. Cruickshank ◽

R. Thompson

Keyword(s):

Beef Cattle ◽

Maternal Effects ◽

Environmental Influences ◽

Carcass Characteristics ◽

Economic Advantage ◽

Cattle Production ◽

Management Regimes ◽

Slaughter Age ◽

Beef Cattle Production

ABSTRACTCarcass characters for 365 male castrate cattle of the Africander, Angoni, Barotse and Boran breeds, and the reciprocal crossbreds of the latter three breeds, are reported. In each of the two year-of-birth groups, different slaughter-age/management regimes were used. For all carcass characters, except those related to size, the two sanga breeds, Africander and Barotse, were very similar, as were the two zebu breeds, Angoni and Boran. The introduced breeds, Africander and Boran, which had similar carcass weights, had heavier carcasses (+18 kg, +10%) than the indigenous Barotse and Angoni breeds.The sanga breed carcasses had less fat cover than those of the zebu breeds. Maternal effects were not important for carcass characters and the Angoni/Barotse and Angoni/Boran crosses showed no heterosis. In the Barotse/Boran crosses, slaughter and carcass weights and eyemuscle area gave between 8% and 9·5% heterosis, and the linear carcass measurements between 2% and 3%.It was concluded from the management comparisons that there was no economic advantage in delaying slaughter to the later of the two ages compared in the two year-of-birth groups.

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Effect of Slaughter Age on Fattening Performance and Carcass Characteristics of Japanese Quails (Coturnix coturnix japonica)

Journal of Applied Animal Research ◽

10.1080/09712119.2007.9706662 ◽

2007 ◽

Vol 31 (2) ◽

pp. 193-195 ◽

Cited By ~ 2

Author(s):

I. Seker ◽

M. Bayraktar ◽

S. Kul ◽

O. Ozmen

Keyword(s):

Carcass Characteristics ◽

Coturnix Japonica ◽

Coturnix Coturnix Japonica ◽

Coturnix Coturnix ◽

Fattening Performance ◽

Japanese Quails ◽

Slaughter Age

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Evaluation of Carcass Characteristics and Egg Quality Traits of Kuroiler and Sasso Chickens Reared Under On-Station and On-Farm Management Conditions in Tanzania

10.21203/rs.3.rs-552125/v1 ◽

2021 ◽

Author(s):

Fadhili Said Guni ◽

S. H. Mbaga ◽

A. M. Katule ◽

E. H. Goromela

Keyword(s):

Linear Models ◽

Egg Quality ◽

Carcass Characteristics ◽

Live Weight ◽

Quality Traits ◽

Mean Values ◽

Slaughter Age ◽

Recorded Data ◽

The Mean ◽

On Farm

Abstract Two studies were conducted to evaluate the carcass characteristics and egg quality traits of Sasso and Kuroiler chickens under on-farm and on-station management conditions. Carcass characteristics were evaluated under on-station only while egg quality was evaluated under both management conditions. A total of 240 hens and 240 cocks were raised under on-station condition and evaluated for egg and carcass quality respectively. Meanwhile, 320 hens were raised under on-farm condition and evaluated for egg quality only. At the end of each of the 16th and 20th weeks of age, a sample of 10 cocks per breed was randomly selected and sacrificed for carcass traits evaluation. To study egg quality, a total of 666 fresh eggs (246 eggs from on-farm and 420 eggs from on-station) were used to evaluate the external and internal egg quality traits. The recorded data were analyzed using the General Linear Models (GLM) procedure of SAS software ( SAS 2009). The results show that except for shell, yolk and albumen ratios, the mean values of other egg quality traits studied were higher for on-station than on-farm. Kuroiler chickens had higher values for egg weight, egg length, yolk weight, albumen height and Haugh unit than Sasso chickens. Live weight, carcass weight and carcass parts weight were found to be higher for Sasso than for Kuroiler at both ages of slaughter. It is concluded that there are variations between managements and breeds on egg quality traits. Carcass characteristics are affected by both breed and slaughter age.

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A note on the Charolais and Murray Grey as terminal sire breeds

Animal Science ◽

10.1017/s0003356100027938 ◽

1985 ◽

Vol 41 (2) ◽

pp. 249-252 ◽

Cited By ~ 2

Author(s):

C. A. Morris ◽

R. L. Baker ◽

J. J. Bass ◽

D. L. Johnson

Keyword(s):

Carcass Characteristics ◽

Live Weight ◽

Carcass Weight ◽

Significant Difference ◽

Slaughter Age ◽

Calf Mortality ◽

Terminal Sire

ABSTRACTA comparison was made of the carcass characteristics of 73 Charolais-sired and 86 Murray Grey-sired cattle slaughtered at about 20 months of age. Six Charolais and 10 Murray Grey sires were used. At a constant slaughter age (597 days) the Charolais-sired calves had significantly heavier pre-slaughter live weight (36 kg) and carcass weight (24 kg) and significantly less fat over the m. longissimus (2·8 mm), but there was no significant difference in killing-out proportion. In the dissected half-carcass, the Charolais-sired calves had significantly more meat (9·3 kg), more bone (3·5 kg) and less fat (1·9 kg). At a constant carcass weight (233 kg), Charolais-sired calves had significantly more meat (1·8 kg) more bone (1·9 kg) and less fat (3·5 kg) in the dissected side. After making allowance for the higher calf mortality from birth to weaning of Charolais-sired calves (0·041), the advantage in carcass weight was reduced to 13 kg. It is concluded that the Charolais breed is superior to the Murray Grey as a terminal sire.

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Evaluation of Greek Cattle Carcass Characteristics (Carcass Weight and Age of Slaughter) Based on SEUROP Classification System

Foods ◽

10.3390/foods9121764 ◽

2020 ◽

Vol 9 (12) ◽

pp. 1764

Author(s):

Kostoula Nikolaou ◽

Panagiota Koutsouli ◽

Iosif Bizelis

Keyword(s):

Classification System ◽

Carcass Characteristics ◽

Carcass Weight ◽

Cattle Breeding ◽

Carcass Parameters ◽

Class 1 ◽

Slaughter Age ◽

The Mean ◽

Main Factors ◽

Almost All

In Greece, all cattle carcasses produced from a variety of breed types are classified according to the SEUROP system. The objective of this study was to evaluate Greek carcass characteristics such as carcass weight and age of slaughter based on SEUROP classification system (muscle conformation and fat deposit classes) and to describe the effect of main factors such as breed, gender, year of slaughter, farm’s geographical region and month of slaughter on these carcass parameters. It is the first study that evaluates local breeds, revealing the wide diversity of the Greek cattle breeding conditions. The analyzed records consisted of 323,046 carcasses from 2011 to 2017. All the examined factors significantly affected the mean carcass weight (298.9 ± 0.2 kg) and the mean slaughter age (559.1 ± 0.3 days). Carcasses from beef meat breeds had on average higher mean carcass weight while the local breeds had lower. The mean slaughter age and carcass weight were higher in winter than in summer. The local and the dairy breeds were classified in similar muscle conformation classes. Finally, Greek cattle carcasses from almost all regions were satisfactory for their quality carcass traits with good muscle conformation (R, O and U class) and low-fat deposit (class 1 to 3).

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Minhota breed cattle: carcass characterisation and meat quality affected by sex and slaughter age

Animal Production Science ◽

10.1071/an14989 ◽

2016 ◽

Vol 56 (12) ◽

pp. 2086 ◽

Cited By ~ 2

Author(s):

J. P. Araujo ◽

J. M. Lorenzo ◽

J. Cerqueira ◽

J. A. Vazquez ◽

P. Pires ◽

...

Keyword(s):

Meat Quality ◽

Carcass Characteristics ◽

Cattle Breed ◽

Study Data ◽

A Value ◽

Pale Pink ◽

Slaughter Age ◽

Males And Females ◽

Entire Male

This work focuses on the effect of slaughter age (6 and 9 months) and sex on carcass characteristics and meat quality of the Minhota cattle breed. In this study, data from 52 cattle (34 entire males and 18 females) were used for the carcass and meat characterisation. Regarding carcass characteristics, entire male carcasses (158 kg and 223 kg for animals of 6 and 9 months, respectively), were heavier than female carcasses (130 kg and 161 kg for animals of 6 and 9 months, respectively), with better dressing percentages, increased lengths, thicknesses and depths and compactness indexes. The quality of meat from carcasses of both entire males and females had strong luminosity (L*), a pale pink tone (lower a*-value) and high yellowness. Mean tenderness of Longissimus thoracis, expressed as shear force, was below 5.5 kg/cm2, without significant differences (P > 0.05) between either the slaughter age or sex.

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