Basic Characteristics of Some Turkish Indigenous Sheep Breeds

., M. Kaymakç; ., O. uz; Ün, Cemal; Bilgen, Güldehen

doi:10.3923/pjbs.2001.916.919

Cited by 17 publications

(7 citation statements)

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“…Akkaraman wool has long been known to have coarse- and carpet-type wool. Most of the wool produced by Akkaraman sheep has been used for blanket, rug and carpet production since a couple of historical studies suggested that Akkaraman sheep have low quality wool [ 7 , 8 ]. However, these findings were based only on a few studies implemented decades ago.…”

Section: Discussionmentioning

confidence: 99%

“…Populations of the breed have not been subjected to systematic genetic selection to increase fleece quality, leaving the wool characteristics relatively low, especially in terms of fineness, compared with fine-wool sheep such as the Merino. Several studies suggested that Akkaraman sheep have a coarse- and carpet-type wool [ 7 , 8 ]. This lower quality fleece is generally used for manufacturing carpets, rugs and blankets, whereas the clothing industry uses high quality wool, which results in increased value [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Genome-Wide Scan of Wool Production Traits in Akkaraman Sheep

Arzık

Kızılaslan

Behrem

et al. 2023

Genes

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The objective of this study was to uncover the genetic background of wool quality, a production trait, by estimating genomic heritability and implementing GWAS in Akkaraman sheep. The wool characteristics measured included fibre diameter (FD) and staple length (SL) at the age of 8 months and yearling fibre diameter (YFD), yearling staple length (YSL) and yearling greasy fleece weight (YGFW) at 18 months of age. Animals were genotyped using the Axiom 50 K Ovine Genotyping Array. Maximum likelihood estimations of a linear mixed model (LMM) were used to estimate genomic heritability, where GWAS was conducted following a score test of each trait. Genomic heritability estimates for the traits ranged between 0.22 and 0.63, indicating that phenotypes have a moderate range of heritability. One genome- and six chromosome-wide significant SNPs were associated with the wool traits in Akkaraman lambs. Accordingly, TRIM2, MND1, TLR2, RNF175, CEP290, TMTC3, RERE, SLC45A1, SOX2, MORN1, SKI, FAAP20, PRKCZ, GABRD, CFAP74, CALML6 and TMEM52 genes as well as nine uncharacterized regions (LOC101118971, LOC105609137, LOC105603067, LOC101122892, LOC106991694, LOC106991467, LOC106991455, LOC105616534 and LOC105609719) were defined as plausible candidates. The findings of this study shed light on the genetics of wool quality and yield for the Akkaraman breed and suggests targets for breeders during systematic breeding programmes.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genome-Wide Scan of Wool Production Traits in Akkaraman Sheep

Arzık

Kızılaslan

Behrem

et al. 2023

Genes

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“…Koyunlarda tür içinde oldukça fazla sayıda ve farklı morfolojik ve verim özellikleri gösteren ırklar bulunur (Kaymakçı, 2001). Yaklaşık onbir bin yıl önce evcilleştirilmeye başlayan koyunların (Vaughan ve ark., 2015) günümüze kadar geldiği süreçte gerek çevresel gerekse genetik etmenlerden dolayı morfolojilerinde birtakım değişiklikler meydana gelmiştir.…”

Section: Tartışma Ve Sonuçunclassified

“…Koyun ırkları kendi içerisinde oldukça çeşitlilik gösterir (Kaymakçı, 2001). Bu ırkların karakteristik yapısını belirlemede morfometrik yapısının ortaya konulması önemlidir.…”

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İvesi Koyunlarında (Ovis aries) Mandibula’nın Morfometrik İncelemesi

Demircioğlu¹,

Yilmaz²

2020

Harran Üniversitesi Veteriner Fakültesi Dergisi

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Bu çalışma İvesi koyunlarında mandibula'nın morfometrik özelliklerini belirlemek amacıyla yapıldı. Bu amaçla 20 adet (10 erkek, 10 dişi) erişkin İvesi koyunu (Ovis aries) mandibulası kullanıldı. Bir bütün halinde temin edilen kafataslarının maserasyonu yapıldı, kas ve deri diseksiyonları tamamlandı ve temporomandibular bölgenin dezartikülasyonu ile mandibula' lar çıkarıldı. Mandibula' lar üzerinde 18 adet doğrusal ölçüm analizleri yapıldı ve tüm veriler ortalama ± standart sapma (SD) olarak ifade edildi. Yapılan incelemelerde dişi ve erkekler arasında GC-MAK (P<0.05) ve CR-PC (P<0.01) parametrelerinde istatistiksel farklılıklar gözlendi. Osteometrik ölçümler arasındaki korelasyon analizleri incelendiğinde veriler arasında P<0.05 ve P<0.01 değerinde istatistiksel önem tespit edildi. Elde edilen biyometrik verilerin hayvan modeli olarak koyun mandibala modellerinin kullanıldığı anatomik, klinik ve taksonomik çalışmalarda referans bilgi kaynağı niteliğinde biyometrik ölçüm ve sınırlar sunacağı düşüncesindeyiz.

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“…In sheep breeds with excessive polymorphism, craniometric studies contribute greatly to their taxonomy (Karimi et al, 2012; Dalga et al, 2017; Kaymakçı et al, 2001). The jaws of different animal species and breeds such as Hystrix cristata (Baygeldi et al, 2022), Gazelle (Yilmaz & Demircioglu, 2019), Van cat (Yilmaz & Demircioğlu, 2021), Red fox (Hadžiomerović et al, 2022), Tuj and Morkaraman sheep (Demiraslan et al, 2014), Sharri sheep (Jashari et al, 2022), Awassi sheep (Yilmaz & Demircioglu, 2020), Bardhoka sheep (Özkan et al, 2020), Hamdani sheep (Güzel et al, 2023) have been examined morphometrically by 3D modelling.…”

Section: Introductionmentioning

confidence: 99%

Morphometric analysis of the mandible of ram and ewe romanov sheep (Ovis aries) with 3D modelling: A CT study

Işbilir

Güzel

2023

Anat Histol Embryol

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Abstract2D images view hardly measurement points due to the overlap of anatomical features. This challenge is overcome by 3D modelling. In particular, images obtained by computed tomography are converted into 3D models through certain software. In sheep breeds with high polymorphism, some changes have occurred in their morphology due to both environmental and genetic factors. In this context, determining the osteometric measurements of sheep and revealing breed‐specific characteristics provide very important data for forensic, zooarchaeological, and developmental sciences. Mandibular reconstruction measurements are used to reveal differences between species and between sexes and for treatment and surgery in many fields of medicine. In the present study, morphometric characteristics were determined by 3D modelling from computed tomography images obtained from mandibles of Romanov ram and ewe. For this purpose, mandibles of 16 Romanov sheep (eight females and eight males) were used. They were scanned using a 64‐detector MDCT device at 80 kV, 200 MA, 639 mGY, and 0.625 mm slice thickness. CT scans were recorded in DICOM format. Reconstructions of the images were made using a special software program. Volume and surface area measurements were made with 22 osteometric parameters of the mandible. GOC‐ID had a statistically significant positive correlation with GOC‐ID, PC‐ID, GOC‐MTR, GOC‐PTW, GOC‐FMN, PMU, MDU, PDU, DU, GOV‐PC, GOV‐IMD, MTR‐MH, MO‐MH, FMN‐ ID, BM, MG, and CG (p < 0.01). GOC‐ID had a statistically significant correlation with MTR‐ID, GOV‐CR, PTW‐MH and SI (p < 0.05). When the CR‐PC measurement point was examined, it was observed that it had no statistically significant correlation with all measurement points (p > 0.05). As a result of the measurement, it was found that the volume and surface areas were higher in rams than in ewes. The morphometric data obtained would be a reference income in the fields of zoo‐archaeology, anatomy, forensics, anaesthesia, surgery, and treatment.

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Basic Characteristics of Some Turkish Indigenous Sheep Breeds

Cited by 17 publications

References 0 publications

Genome-Wide Scan of Wool Production Traits in Akkaraman Sheep

Genome-Wide Scan of Wool Production Traits in Akkaraman Sheep

İvesi Koyunlarında (Ovis aries) Mandibula’nın Morfometrik İncelemesi

Morphometric analysis of the mandible of ram and ewe romanov sheep (Ovis aries) with 3D modelling: A CT study

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