Genotyping of mitochondrial D-loop sequences in three breeds of sheep

Aljubouri, Thamer R. S.; Al-Shuhaib, Mohammed Baqur S.

doi:10.2478/s11756-020-00543-6

Cited by 11 publications

(5 citation statements)

References 36 publications

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“…Improving sheep's growth traits is the main concern of many researchers, and growth trait is the most important economic factor in animals, which is controlled by several genes (Aljubouri et al, 2020b;Imran et al, 2021). One of the most prevalent sheep breeds in Iraq is Awassi, with 58.2% of prevalence over other breeds, such as Arabi (21.8%) and Karadi (20%) (Aljubouri & Al-Shuhaib, 2021). In addition, the Awassi sheep have the ability to survive and breed in conditions of drought and extreme climatic fluctuations (Al-Thuwaini et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Relationship of some metabolic Hormones with Increased Live Body Weight of Male and Female of Karakul and Awassi Lambs

Aljubouri

Al-Khafaji

Al-Shuhaib

2021

Basrah J. Agric. Sci.

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This study was conducted in the animal field of the Al-Kafeel Company from November 2019 till May 2020 to investigate the possible association between growth hormone (GH) and thyroxine (T4) with the growth traits in Awassi and Karakul sheep. The total number of animals which used in the study was 60 lambs, 28 (13 males and 15 females) from Karakul and 32 (18 males and 14 females) from Awassi. Blood samples were collected at birth, weaning, and six months of age, and both GH and T4 concentrations were measured. Results showed higher values of T4 for Karakul as compared with Awassi at birth and weaning. Karakul breed was also exhibited significantly higher values of GH over Awassi breed only at weaning, while, no significant differences were observed at birth and six months of age. Karakul lambs showed higher weights as compared with Awassi lambs at all studied periods. A highly significant (p < 0.01) positive correlation was observed between T4 concentration and the weight of lambs at most studied periods. Whereas, GH did not exhibit any correlation with growth traits measured in both breeds. The elevated T4 might be one of the reasons for superiority of Karakul over Awassi breed in live body weights. This high correlation between T4 and growth traits could be used in the early selection of lambs to improve the weights of sheep at marketing.

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Section: Introductionmentioning

confidence: 99%

Relationship of some metabolic Hormones with Increased Live Body Weight of Male and Female of Karakul and Awassi Lambs

Aljubouri

Al-Khafaji

Al-Shuhaib

2021

Basrah J. Agric. Sci.

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“….47 cm) compared to the local Hamdani breed, respectively, and there were no significant differences for body length, wither and rump height at weaning, while at the age of six months, the superiority was in favor of the Karakul breed in all body measurements compared to the local Hamdani breed, Table . (1). Body weights and measurements are quantitative traits that are determined through the interaction between environment and genetics, as studies have indicated the role of genes carried by the breed and the surrounding environmental conditions are responsible for the difference in the development of body weight through the influence of many genes that act differently [8,23]. The results of the current study were supported by [24], on Karakul sheep at birth and weaning weights and six months of age, and [25], when studied on Awassi sheep.…”

Section: Breed and Sex Lambsmentioning

confidence: 99%

Effect of Breed and some Non-Genetic Factors on Productive Performance in Two Sheep Breeds

Alwan,

Aljubouri

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study was conducted with the animal field of Al-Kafeel Company/Barakat Aba Al-Fadl (peace be upon him) station during the period from December 2021 to July 2022, the experiment included 200 lambs (100 lambs of Iranian Karakul breed, 100 lambs of local Hamdani) The number of male lambs was 88 while the female was 112, this study aims to compare the productive performance between the two breeds from birth to the age of 6 months, and to study the effect of non-genetic factors (dam’s weight, dam age, and sex of lambs) in productive traits, Birth and weaning weights were recorded at the age of six months, and body measurements for both breeds (body length, height at the wither and rump, chest and abdomen circumference) The results indicated a highly significant (P<0.01) superiority of the Karakul lambs over the local Hamdani breed in body weights, chest circumference at birth, body weight, chest and abdominal circumference at weaning, body weight and all body measurements at six months of age, Highly significant (P<0.01) for male lambs over females in body weights and body length, wither and rump height at weaning, body weight, all body measurements at six months of age, for both breeds. In addition to the presence of a highly significant difference (P<0.01) for the weight of lambs produced from dams with a high weight of more than 50 kg compared with lambs produced from dams with a weight of 30-49 kg at birth and weaning and at the age of six months, respectively, and most of the body measurements, While the non-significant effect of the age Dam on the weights of the lambs was on the weights of the lambs and most of the body measurements of both breeds. The results showed a positive and significant correlation (P < 0.01) between the weight of dams and lambs weight at birth and weaning and at six months of age, also to the correlation of the weights of the previous lambs with the subsequent weights of both breeds, Thus The possibility of using these factors of lambs in breeding programs for early selection of lambs and improving productive performance near marketing.

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“…The most prevalent sheep breed in Iraq is Awassi with 58.2% more than other breeds such as Al-arabi (21.8%) and Al-Karadi (20%) [13]. In addition, Awassi sheep have the ability to survive and breed in conditions of drought and extreme climatic.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Growth Hormone Genetic Polymorphism in Awassi Ewes and Their Newborns Using PCR-RFLP Technology

Hady,

Almallah,

Al-Hasan

2024

Egyptian Journal of Veterinary Sciences

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Production to determine the genetic structures (Genotype) of the Growth hormone gene for Awassi ewes and their progeny and compares between them, For conducting this work, forty Awassi ewes of age (3-5) years and 20 lambs aged between birth and weaning (1-3) months were used, The DNA was separated from collected blood samples, growth hormone gene was amplified using specific primers and genotyping was performed using RFLP technique. The distribution ratios of the genetic structures varied in the ewes, as only two genetic structures appeared, namely AA and AG, with a frequency of 0.24 for the AA and 0.16 for the AG genetic structure, and with a allele frequency of (0.8) for the A allele and (0.2) for the G allele, while three genotypes appeared for the lambs, namely AA, AG and GG, with the distribution ratios of the genetic structures (0.75, 0.1 and 0.15) respectively and with the same allelic frequency (0.8, 0.2) for each of the allele (A and G) respected . We conclude from this study that it is possible to consider the multiple genetic form of the growth hormone gene and its dependence on genetic improvement in ewes and their newborns to achieve a higher economic return than selection methods.

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Genotyping of mitochondrial D-loop sequences in three breeds of sheep

Cited by 11 publications

References 36 publications

Relationship of some metabolic Hormones with Increased Live Body Weight of Male and Female of Karakul and Awassi Lambs

Relationship of some metabolic Hormones with Increased Live Body Weight of Male and Female of Karakul and Awassi Lambs

Effect of Breed and some Non-Genetic Factors on Productive Performance in Two Sheep Breeds

Comparison of Growth Hormone Genetic Polymorphism in Awassi Ewes and Their Newborns Using PCR-RFLP Technology

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