Investigation of growth and carcass characteristics of pure and crossbred Awassi lambs

Abdullah, Abdullah Y.; Kridli, Rami T.; Shaker, M. Momani; Obeidat, Mohammad D.

doi:10.1016/j.smallrumres.2010.08.005

Cited by 32 publications

(38 citation statements)

References 27 publications

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“…The highest carcass yield (CY) in our experiment was found in S 50 T 50 and the lowest in S 100. However, all values of CY in our experiment were signifi cantly lower than those published by Abdullah et al (2010) and Komprda et al (2012). On the other hand, in all crossbreds were found comparable values of CYs with data published by Kremer et al (2004) and Cividini et al (2005).…”

Section: Resultssupporting

confidence: 55%

Effect of Genotype on Growth and Basic Carcass Characteristics in Male Lambs

Koutna

Kuchtík

Filipčík

2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of the study was to evaluate the eff ect of a genotype on growth and basic carcass characteristics in male lambs. The experiment was carried out at an organic farm in Proseč and four diff erent genotypes were included in the experiment: Šumavská sheep (S) 100, n = 8; S 50 Texel (T) 50, n = 11; T 75 S 25, n = 13 and S 75 T 25, n = 11. The genotype had no signifi cant eff ect on most of the monitored growth parameters. The highest daily gain (DG) in the interval from birth to 100 days of age was found out in S 75 T 25 (327 g) but the highest DG from birth until the end of the experiment was found in S 50 T 50 (199 g). By contrast, the lowest DGs in both above mentioned intervals were found out in S 100 (265 and 147 g, respectively). With regards to basic carcass characteristics, the genotype had a signifi cant eff ect only on proportion of kidney. The highest carcass yield (44.80%) was found in S 50 T 50 and the lowest (37.66%) in S 100. The best conformation score was found in S 75 T 25 (3.18) and the lowest fatness score in S 50 T 50. To conclude, it is possible to state that use of the Texel rams in crossing with the Šumavská ewes had a positive eff ect on both growth and basic carcass characteristics.

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Section: Resultssupporting

confidence: 55%

Effect of Genotype on Growth and Basic Carcass Characteristics in Male Lambs

Koutna

Kuchtík

Filipčík

2016

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…According to Stanford et al (2001) or Abdullah et al (2010) the effect of lamb sex is one of the most important factors influencing ultrasound measurements of lambs. This finding was not entirely obvious from our study.…”

Section: Effect Of Sex Of Lambsmentioning

confidence: 99%

“…As a reaction to the buyer's preference the meat producers are requesting lambs that fulfill the conditions of age, body weight, body fat coverage, and meat quality indicators (Freer and Dove, 2002). Number of studies focused on factors influencing the parameters of growth performance in the in vivo assessed animals (Koycegiz et al, 2009;Esmailizadeh et al, 2011) as well as in the lamb carcasses (Atti and Mahouachi, 2009;Abdullah et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Ptáček¹,

Ducháček²,

Beran³

et al. 2015

j. cent. eur. agric.

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The monitoring was performed in one year period in selected population of Suffolk sheep (SF, n = 257) and their crossbreds with Merinolandschaf (SF × ML, n = 87). Total of 627 lambs (SF, n = 463; SF × ML, n = 164) were observed in breeding conditions of two semi-extensive flocks. Lambs' live weight at 100 days of age (LW100); musculus longissimus lumborum et thoracis (MLLT100) depth and backfat thickness (BT100) at the same age were assessed. Effects of breed, ewes' live weight at mating, litter size, sex of lambs and ewe's age as linear regression were evaluated using SAS 9.1. Significant differences (P < 0.05) in LW100, MLLT100 and BT100 between SF and SF × ML were observed. All the evaluated traits of growth performance were also influenced (P < 0.05) by ewes' live weight at mating. The highest lambs' growth performance traits were detected in lambs of ewes with highest live weight at mating (group of ≥ 80.7 kg). Significant differences (P < 0.05) were observed among singles, twins and triplets lambs as well. Significantly higher LW100 was marked in ram lambs compared to ewe lambs (P < 0.05).

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“…Effect of genotype [12] [13], genotype and feeding system [14], and genotype and levels of feeding [15] on performance of sheep has been reported, although potential differences in response to different feed levels among genotypes have not been sufficiently illustrated. Knowledge of comparative growth potential among sheep genotypes and their response to different level of feeding are essential to identify the potential breed as well as to establish various management alternatives for the different genotypes.…”

Section: Introductionmentioning

confidence: 99%

Feed Intake, Digestibility, Growth Performance and Blood Profiles of Three Ethiopian Fat Tail Hair Sheep Fed Hay Supplemented with Two Levels of Concentrate Supplement

Ayele¹,

Urge²,

Animut³

et al. 2017

OJAS

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An experiment arranged in 2 × 3 (2 concentrate supplement levels (CSL) and 3 breeds) factorial was carried out to evaluate the effect of CSL, breeds, and their interaction on feed intake, digestibility, feed utilization efficiency, and blood profiles of Ethiopian fat-tail hair sheep. The CSL were 1% and 1.75% body weight, designated as L1 and L2, respectively. The breeds used were yearling intact male Blackhead Ogaden (BHO), Horro and Washera. Sixteen sheep from each breed were divided into two based on initial body weight and randomly allocated to two dietary treatments for digestibility and growth trials of 10 and 90 days, respectively. Grass hay as a basal diet was offered ad libitum to each sheep. Feed intake every day and live body weight at interval of ten days were recorded for the duration of the experiment. Blood samples and linear body measurements were taken a week before the end and on the last day of the experiment from all sheep, respectively. Dry matter and nutrient intakes, except concentrate supplement and CP, were influenced by the interaction. The higher (p < 0.0001) DM digestibility was recorded from sheep supplemented with L2 than L1. Consequently, sheep supplemented with L2 had significantly higher (P < 0.05) feed conversion efficiency (FCE), average daily gain (ADG) (57.3 vs 44.2 kg), total gain (TG) (5.3 vs 3.9 kg) and final body weight (FBW) than those supplemented with L1. Among breeds, Horro sheep recorded higher (P < 0.05) DM intake, digestibility, and FCE than the rest of the breeds. Consequently, this breed has significantly (p < 0.05) higher TG, ADG, and FBW. Some of the blood hematology (PCV, MCV, neutrophils, and monocytes) and sera metabolites (total protein, urea, and cholesterol) How to cite this paper: Ayele, S., Urge, M. 150values were influenced by the interaction in favor of L2. Hemoglobin concentration was higher for Washera than the other breeds (p < 0.05) but similar for the two CSL (P > 0.05). In conclusion, the study indicate the presence of variation in nutrient intake and utilization, performance traits, and blood profiles among breeds and between CSL, most of which were in favor of Horro breed and high level of concentrate.

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Investigation of growth and carcass characteristics of pure and crossbred Awassi lambs

Cited by 32 publications

References 27 publications

Effect of Genotype on Growth and Basic Carcass Characteristics in Male Lambs

Effect of Genotype on Growth and Basic Carcass Characteristics in Male Lambs

Influence of selected factors on growth performance of Suffolk lambs and their crossbreds

Feed Intake, Digestibility, Growth Performance and Blood Profiles of Three Ethiopian Fat Tail Hair Sheep Fed Hay Supplemented with Two Levels of Concentrate Supplement

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