Post-weaning growth performance, carcass characteristics and preliminary heritability estimates for some carcass traits of two types of Sudan Desert sheep on intensive feeding

Karim, A. I. A. El; Owen, J. B.

doi:10.1017/s0021859600081740

Cited by 5 publications

(5 citation statements)

References 14 publications

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“…In this respect, El-Shahat et al (1986) found that carcasses of Rahmani lambs were fatter than those of Ossimi ones. Similar percentages of carcass composition were given by Kadak (1983) on Akkaraman lambs and El Karim and Owen (1987) on Sudan Desert sheep. Kadak (1983) recorded muscle, fat and bone percentage of Akkaraman lambs (42 kg) to be 58.5%, 18.4% and 19.0%, respectively.…”

Section: The Effect Of Breed and Body Weight On Carcass Characteristicssupporting

confidence: 78%

“…Kadak (1983) recorded muscle, fat and bone percentage of Akkaraman lambs (42 kg) to be 58.5%, 18.4% and 19.0%, respectively. El Karim and Owen (1987) reported a carcass composition percentage of lean (58.1-59.2%), fat (14.2-15.8%) and bone (18.9-19.9%) in Shugor and Watish lambs, respectively. Yardımcı et al (2008) found that composition of Akkaraman carcass was 48.9% muscle, 15.1% fat and 19.6% bone.…”

Section: The Effect Of Breed and Body Weight On Carcass Characteristicsmentioning

confidence: 99%

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Use of Fat Tail Dimensions for Prediction of Fat in Tail and Carcass in Egyptian Ram Lambs

Agamy¹,

Moneim²,

Alla³

et al. 2013

Egyptian Journal of Animal Production

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Forty five Egyptian ram lambs, 15 of each of Ossimi, Barki and Rahmani were used to investigate the influence of breed and body weight on fat tail measurements and carcass composition. Fat tail measurements were also used to establish prediction equations to predict weights of fat tail (FTW), dissected carcass fat and total body fat (TBF). Fat tail measurements were upper (UFTT) and lower (LFTT) tail thickness, upper (UFTW) and lower (LFTW) tail width, upper (UFTC) and lower (LFTC) tail circumference as well as tail length (FTL). Body weight (BW), Empty body weight (EBW), hot carcass weight (HCW), fat tail weight (FTW), pericardial fat weight, omental fat weight, mesenteric fat weight and perinephric and pelvic fat weight were also recorded. The left half carcasses were dissected into conventional cuts. Barki ram lambs had significantly (P<0.01) the least all fat tail dimensions. Ossimi ram lambs had significantly (P<0.01) the highest LFTW, UFTC and LFTC. However, HCW was significantly (P<0.05) the highest in Ossimi ram lambs (21.3 kg) followed by Rahmani (20.5 kg) and Barki ones (20.2 kg). The highest dressing percentage was that of Ossimi carcass (52.0%) which was significantly (P<0.05) more than those of Rahmani (50.1%) and Barki (49.3%) carcasses. Carcass of Ossimi significantly (P<0.05) excelled that of Barki and Rahmani breeds in total fat stores. Carcasses of Barki ram lambs had significantly (P<0.05) higher non-carcass fat and dissected carcass fat and lower fat tail weight as a percentage of total body fat than that of both Ossimi and Rahmani. FTW was positively and highly significant (P<0.01) correlated with UFTC in Rahmani ram lambs (r=0.93) and Barki ones (r=0.89). However, LFTC was positively and highly significant (P<0.01) correlated with FTW in Ossimi ram lambs (r=0.95). It was found that positive and significant correlation coefficients were obtained between FTW of all breeds studied and TBF and dissected carcass fat. Moreover, the upper circumference of tail accounted for 79% and 86% of the total variation in tail weight of Barki and Rahmani ram lambs, respectively. In Ossimi, both lower circumference and thickness of fat tail accounted for 94% of the total variation in FTW. The obtained results cast light on the fat tail dimensions as the accurate parameters for prediction of fat weight in carcass of Egyptian sheep.

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Section: The Effect Of Breed and Body Weight On Carcass Characteristicssupporting

confidence: 78%

Section: The Effect Of Breed and Body Weight On Carcass Characteristicsmentioning

confidence: 99%

Use of Fat Tail Dimensions for Prediction of Fat in Tail and Carcass in Egyptian Ram Lambs

Agamy¹,

Moneim²,

Alla³

et al. 2013

Egyptian Journal of Animal Production

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show abstract

“…Muscle: bone: Ratio Table 1 muscle, bone were ( 12.02 ± 0.53 ) ( 4.20 ± 0.10 ) The ratio were 2.9 and this agreed with 10 . Who reported in loin: bone ratio about Ashugar and Watish.…”

Section: Bone Percentagesupporting

confidence: 74%

“…The growth performance and carcass characteristics of tow type of Sudan desert sheep on intensive feeding the result were that, lean: bone ratio was 2.96 for Ashugor and 2.98 for Watish 10 .…”

Section: Muscle: Bone Ratiomentioning

confidence: 95%

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Dressing Out Percent and Some Carcass Characteristic of El Gash Sheep

A.N

O.M.A

2018

jmbas

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This study was conducted to evaluate dressing out percent and carcass characteristic potentials of EL Gash sheep, under their natural habitat in Kassala town abattoir, Thirty , sheep 15 males and 15 females , were purchased form the different local market of El Gash Area. Each sex was comprised of five groups , according to the age studied . live animals body weights were be taken before and after slaughtering .The evaluation of dressing out percent carcass yield characteristic were be taken. The slaughter data results significant difference between the two sexes . The result indicated that dressing out percentage were 49.4% and 47.3% for the male and the female respectively with overall average of 48% . Slaughter at different ages showed significant differences in some parts of internal organs between the two sexes. Alive weight, muscle, bone, trims, head, skin, rumen full, intestine full intestine empty, liver, heart, lungs reproductive organs and spleen were heavier in male than the female it might be due to the sex male hormone, but mesenteric fat, omentum fat, kidney knob canal fat [k.k.c.f], and fat were heavier in female than the males while muscle, bone, fat, trims, head, mesenteric fat, omentum fat, spleen and knob canal fat (k.k.c.f)were significant.

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Genetic parameters of lamb carcass characteristics at three end-points: fat level, age and weight

Pollott

Croston

1994

Anim. Sci.

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Although breed substitution is a very common method of rapidly altering the characteristics of a livestock population, within-breed selection for lamb carcass characters is becoming more widely used in the terminal sire breeds in Britain. Such selection schemes require accurate and applicable genetic parameters for the carcass traits of interest. This paper reports a genetic analysis of 11 traits measured on 3592 lamb carcasses using a derivative-free restricted maximum likelihood technique. Because of the trial design it was possible to estimate the genetic parameters of the traits at comparable fat cover, carcass weight and age at slaughter, using appropriate within-subclass covariates.Heritability estimates for muscle depth (0·23, s.e. 0·04), muscle width (0·32, s.e. 0·05), fat depth (0·31, s.e. 0·05), caliper fat (0·23, s.e. 0·04) and conformation (0·29, s.e. 0·05) were similar in the weight and age-corrected results. Heritabilities for fat cover (0·35, s.e. 0·05), daily carcass weight gain (0·63, s.e. 0·07), and leg conformation (0·44, s.e. 0·05) were higher with slaughter at fixed weight than at fixed age. The heritabilities of traits at comparable fat cover were similar to those at comparable age at slaughter with the exception of daily carcass weight gain, fat depth, caliper fat and leg conformation.The different measures of fat were highly correlated with each other. Conformation was moderately correlated with external fat score, carcass length and muscle depth. Muscle depth was moderately correlated with carcass length. Differences were found between genetic correlations calculated at equal weight, a common point of comparison in breeding schemes, and equal fat cover, a common end-point for slaughter lambs.

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Post-weaning growth performance, carcass characteristics and preliminary heritability estimates for some carcass traits of two types of Sudan Desert sheep on intensive feeding

Cited by 5 publications

References 14 publications

Use of Fat Tail Dimensions for Prediction of Fat in Tail and Carcass in Egyptian Ram Lambs

Use of Fat Tail Dimensions for Prediction of Fat in Tail and Carcass in Egyptian Ram Lambs

Dressing Out Percent and Some Carcass Characteristic of El Gash Sheep

Genetic parameters of lamb carcass characteristics at three end-points: fat level, age and weight

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