A Comparative Performance Study between Afec-Awassi Crossbred , Improved Awassi and Local Awassi Sheep Reared Intensively in Jordan

Jawasreh, Khaleel; Alqaisi, Othman; Awawdeh, F. T.; Al-Majali, Ahmad M.; Eljarah, Abdulhakeem

doi:10.12816/0001101

Cited by 8 publications

(4 citation statements)

References 12 publications

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“…This effect has been well reflected in lamb breeding. This result is inconsistent with the results of [40,41], who found that ewe body weight had no significant effect on lamb body weight at birth, weaning and 6 months of age.…”

Section: Dam Weight At Birthcontrasting

confidence: 99%

Relationship of Body Weights with the Productive Performance of Lambs of the Awassi and Karakul Breeds and Crossbred Sheep

Ali,

Altaei

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A study was carried out on 60 ewes of the Awassi and Karakul breeds, and cross at age of birth, weaned and 6 months in Barakat Abi Al-Fadl Al-Abbas Station in Karbala Governorate, Iraq from the first of June 2022 until the first of June of the year 2023.with the aim of studying relationship between body weights (BW) of lambs and productive performance (PP) through a set of factors (Genetic group - Sex of lamb - Age of dams - Month of birth - Weight of dams), The statistical analysis system (SAS) was used to analyze the data. The result is displayed as follows: The genetic group, the sex of lambs, the age of the ewe, and the month of birth didn’t affect BW and average weight gain (AWG) of lambs at birth, weaning, and 6 months of age. Only weight of the ewe had a significant effect (P<0.05) on weight of lambs at 6 months of age. The ewes weighing more than 48 kg were superior to the rest of the other weights, with an average weight of 28.35 kg, while the weight of the ewe did not affect the weight of lambs at birth and weaning, also affected weight of the ewe on rate of weight gain at birth, weaning, and 6 months, with the superiority of ewes weighing more than 48 kg over the rest of the weights. Weaning weight was positively correlated with birth weight and highly significant (P<0.01), and the regression coefficient between 6-month-old body weight and weaning weight was high and significant (P<0.01).

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Section: Dam Weight At Birthcontrasting

confidence: 99%

Relationship of Body Weights with the Productive Performance of Lambs of the Awassi and Karakul Breeds and Crossbred Sheep

Ali,

Altaei

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Lack of association was observed between the CAST gene variants in carcass weight and dressing percentage of thin tail sheep (Dagong et al 2012). Jawasreh et al (2012) found that Awassi sheep individuals that carried the MN genotype (heterozygous) had a higher neutrophil to lymphocyte ratio than MM genotypes and they also indicated that lambs that carry the MN genotype had higher (P<0.05) albumin and triiodothyronine (T3) concentrations than the MM genotype. These may explain the higher meat to bone ratio found in the MN genotypes.…”

Section: Pcr-rflp Of Calpastatin Genementioning

confidence: 99%

“…

The Awassi is a predominant fat-tailed sheep breed that is found in the Mediterranean countries and also in Spain, Australia and some European countries. Under the same environmental conditions a high variation has been observed in the growth performance of Awassi sheep (Jawasreh and Khasawneh. 2007).

…”

mentioning

confidence: 99%

Association between MspI calpastatin gene polymorphisms, growth performance, and meat characteristics of Awassi sheep

Jawasreh

JADALLAH

Alamareen

et al. 2017

Indian J of Anim Sci

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The association between the ovine calpastatin gene (CAST) genotypes, growth performance and meat characteristics of Awassi sheep was investigated. Homozygous (MM) and heterozygous (MN) genotypes of the CAST were obtained by RFLP, using Awassi ram lambs (age=7 to 14 days n= 80).A fattening trial was conductedusing 10 ram lambs MspI - of CAST genotypes (5 lambs from each genotype) (homozygous (MM) and heterozygous (MN). Lambs were weighed at the beginning of the experiment and the subsequent weights were measured biweekly before the morning feeding throughout the duration of the experiment. At the end of the fattening period, all lambs were slaughtered to evaluate carcass characteristics and meat quality. The results showed a significant association between CAST genotypes and growth rate and final body weight showing that lambs of the MN genotype had a higher average daily gain and final body weight compared to lambs of the MM genotype. The CAST gene genotypes showed a significant effect on some carcass components and meat quality parameters indicating that MN genotype showed lower total bone and higher meat to bone ratio than the MM genotype in the dissected leg cut. Furthermore, the MN genotype had a higher longissimus muscle weight compared to MM animals. Meat quality analysis showed that MN genotype lambs had higher shear force, lower cooking loss and lightness. It can be concluded that the CAST gene can be considered as one of the genes that control growth performance and meat quality traits.

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“…Poor management can influence the incidence of the disease. Stress conditions like poor nutrients containing diet, weaning and transportation are very likely to have a role in clinical coccidiosis in goats [4].…”

Section: Introductionmentioning

confidence: 99%

Prevalence and Pathology of Caprine Coccidiosis in South Darfur State, Sudan

Khairelsiad,

Saad,

Abdulrahim

et al. 2021

AJRAVS

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This study was carried out to investigate the prevalence and pathology of coccidiosis in local breeds of goats in South Darfur State and the factors affecting it. One hundred faecal samples were directly collected from the rectum during September -December 2017, from goats, kept in an open system. The animals were grouped according to sex (34 males and 66 females), and according to age group (85 goats in the age one year or more, 15 less than one year). Oocysts were detected using the floatation method; the McMaster method was used for oocysts count. Length, width and size were measured by calibrated microscope attached to computer for the parasite identification. On the other hand, 100 samples of intestine sections were collected for gross and microscopic examination, from Nyala North slaughterhouse. The gross intestinal lesions were reported and sections for

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A Comparative Performance Study between Afec-Awassi Crossbred , Improved Awassi and Local Awassi Sheep Reared Intensively in Jordan

Cited by 8 publications

References 12 publications

Relationship of Body Weights with the Productive Performance of Lambs of the Awassi and Karakul Breeds and Crossbred Sheep

Relationship of Body Weights with the Productive Performance of Lambs of the Awassi and Karakul Breeds and Crossbred Sheep

Association between MspI calpastatin gene polymorphisms, growth performance, and meat characteristics of Awassi sheep

Prevalence and Pathology of Caprine Coccidiosis in South Darfur State, Sudan

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