Browsing by Author "Aygun, T."

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Appropriate Growth Model Describing Some Testicular Characteristics in Norduz Male Lambs
(Pakistan Agricultural Scientists Forum, 2010) Karakus, K.; Eyduran, E.; Aygun, T.; Javed, K.
The objective of this study was to determine the appropriate non-linear function describing growth of some testicular traits (testicular length, testicular diameter, scrotal circumference and scrotal length) in Norduz male lambs. Testicular characteristics at 90, 110, 130, 150, 170, and 190 days of age for all the lambs were measured. Four growth (Monomolecular, Logistic, Gompertz, and Richard's) models were used to explain relationship between each testicular trait-age. Growth models were based on averages of measurements on their testicular traits in each period of all the male lambs. As a result, appropriate growth models explaining growth at early age of testicular length, testicular diameter, scrotal circumference and scrotal length in Norduz male lambs were Logistic and Richard's non-linear model. Also, age and body weight had significant effect on these testicular traits.
Comparison of Feedlot Performance and Carcass Traits of Tail Docked Karakas and Norduz Male Lambs
(indian veterinary Journal, 2006) Aygun, T.; Bingol, M.; Gokdal, O.
The carcasses of fat-tailed sheep breeds are marketed with tail fat in Turkey. The aim of this study was to evaluate feedlot performance and carcass traits of tail docked Karakas and Nordu male lambs.
Factors Affecting the Growth of Norduz Lambs
(2009) Karakus, K.; Eyduran, E.; Aygun, T.; Cengiz, F.
From the study, it was found that the effects of gender and birth type on birth weight, weights at 30, 60, 90,120,150 and 180th days of age were significant, whereas dam's age had no effect on weights at all periods. Also, the linear regressions of weights at all periods on birth weight were found significant. On conclusion it is stated that sex and birth type had significant effect on weights at all periods, whereas effect of dam age on weights at all periods was found non-significant.
Feedlot Performance and Carcass Traits of Fat-Tailed Ewe-Lambs
(indian veterinary Journal, 2007) Aygun, T.
The fat-tailed Karakas sheep, a subtype of the Akkaraman breed, are characerized by adaptation to harsh environmental and feeding conditions. The purpose of this research was to evaluate the fattening performance and carcass traits of fat-tailed Karakas ewe-lambs.
Fleece Characteristics of Karakas, Norduz, Ile De France X Akkaraman Cross Bred Sheep
(indian veterinary Journal, 2007) Karakus, K.; Aygun, T.; Arslan, S.
Most of the native sheep breeds in Turkey have low meat and wool yields. The fat tailed Karakas and Norduz sheep, subtype of the Akkaraman sheep breed, are favourably characterized by their adaptation to harsh environmental and feeding conditions. Karakas and Norduz sheep are found in Van provinces of Eastern Anatolia in Turkey. This study was aimed to compare some fleece characteristics of Karakas, Norduz, Ile de France x Akkaraman (G) and Ile de France x Akkaraman (G) x Karakas (F-1) sheep and to investigate the wool characteristics of Ile de France crosses with native sheep for utilization possibilities in traditional products (hand-made carpet and kilim).
Some Factors Influencing the Birth Weights of Norduz Kids
(Scientific Issues Natl Centre Agrarian Sciences, 2010) Karakus, K.; Aygun, T.; Budag, C.; Eyduran, E.; Ozdemir, T.
The present paper was conducted to determine the effects of some environmental factors on Norduz kids raised at Research and Application Farm of Agricultural Faculty, Yuzuncu Yil University, Van, Turkey. For this aim, birth type (single and twin), gender (male and female), dam age at lambing (1, 2, 3, 4, 5, and 6), and birth year (2005, 2006, and 2007), and birth weights (kg) of 155 Norduz kids were recorded. According to results of the present paper, effect of gender factor on birth weight of kids was found to be non-significant, the influences of dam age (P<0.05), birth type (P<0.05), and birth year (P<0.001) on it were found significant. As a result, the birth weight trait provides useful information for early selection criteria in breeding program. Determination and adjustment of the effects of environmental factors influencing it are very important for achieving more accurate genetic parameters and effective application of breeding and selection methods on the trait.