Tuj ve Morkaraman Koyunlarının Kafatasında Karşılaştırmalı Morfometrik Bir Çalışma

Abstract

SummaryThis study was undertaken to reveal morphometric skull features of the Tuj and Morkaraman sheep. The skulls of 10 months old 6 male Tuj and 6 male Morkaraman sheep were used. A number of 38 craniometric measurements were taken from skulls of both species. Craniofacial indices were also calculated. There were no significant differences determined between the heads of these species except the measurement which displayed the width between the two orbita (entorbitale entorbitale = least breadth between the orbits), P<0.05. The least breadth between the orbits of 66.58±2.263 mm in Tuj sheep and, 70.41±2.538 mm in Morkaraman sheep were obtained..

Morphometric analysis of the skull of Hamdani sheep via Three‐Dimensional modelling

“…In the study, profile length of Hamdani cranium was calculated as 216.71 ± 3.42 mm and 228.51 ± 7.89 mm in females and males, respectively. These lengths were found as 248.17 ± 9.73 mm (Jashari et al, 2022) and 245.80 ± 19.62 mm in Sharri ewe and ram, 245.25 ± 10.24 mm and 257.98 ± 15.81 mm in Bardhoka ewe and ram (Gündemir et al, 2020), 204.49 ± 9.71 mm and 198.09 ± 7.69 mm in tuj and morkaraman sheep (Ozcan et al, 2010), respectively, 186.7 ± 0.66 mm in markhoz goat (Goodarzi & Shah Hoseini, 2014), and 247.2 ± 0.93 mm in kagani goat (Sarma, 2006). Such differences between animal species and breeds are thought to be due to the geographical environment in which they were raised, their care and feeding conditions, and breed specificity.…”

“…The largest area of cranium is the frontal region in ruminants (Greatest frontal breadth) (Ozcan et al, 2010; Yılmaz & Demircioglu, 2020). The studies reported this distance as 101.66 ± 1.69 mm in tuj sheep, 102.98 ± 2.52 mm (Ozcan et al, 2010) in morkaraman sheep, 115.07 ± 7.74 mm on average in Awassi sheep (Yılmaz & Demircioglu, 2020), 89.1 ± 0.18 mm in Markhoz goat (Goodarzi & Shah Hoseini, 2014), and 104.4 ± 0.29 mm in Mehraban sheep (Karimi et al, 2011). In the study, the largest area of Hamdani cranium was found as 216.71 ± 3.42 mm in ewe and 228.51 ± 7.89 mm in ram.…”

“…A total of 38 measurements are shown in Figures 1 and 2. (Gündemir et al, 2020; Ozcan et al, 2010; Parés‐Casanova, 2013; von den Driesch, 1976):…”

“…In this study, the following craniofacial indices were used (Gündemir et al, 2020; Ozcan et al, 2010; Yılmaz & Demircioglu, 2020): Skull index: Greatest breadth of the skull/Total length × 100 Facial index 1: Facial breadth/Viscerocranium length × 100 Facial index 2: Greatest breadth of the skull/Viscerocranium length × 100 Frontal index: Greatest breadth of the skull/Median frontal length × 100 Basal index: Greatest breadth of the skull/Basal length × 100 Length‐length index: Median frontal length/Viscerocranium length Palatal index: Greatest palatal breadth/Dental length × 100 Orbital index: Greatest inner height of the orbit/Greatest inner length of the orbit × 100 Foramen magnum index: Height of the foramen magnum/Greatest breadth of the foramen magnum × 100 …”

“…In the literature reviews, there are studies of the cranium morphometries of native and non‐native sheep breeds such as Awassi sheep (Yılmaz & Demircioglu, 2020), Mehraban sheep (Karimi et al, 2011), Tuj and Morkaraman sheep (Ozcan et al, 2010), kıvırcık sheep (Omer & Alpak, 2012), Bardhoka sheep (Gündemir et al, 2020) and Sharri sheep (Jashari et al, 2022). No craniometric studies were found on the skull of Hamdani sheep raised in the East‐Southeast regions of Turkey and Mesopotamia (Alkass & Juma, 2005; Aziz & Al‐Oramary, 2005; Eyduran et al, 2008).…”