UN SDG
Livestock Studies 1967, Vol 7, Num, 3     (Pages: 080-114)
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DEĞİŞİK YAŞLARDAKİ ANKARA KEÇİLERİNDE ÇİFT KIRKIMIN TİFTİK KARAKTERLERİ VE ÇEŞİTLİ VERİMLERİ ÜZERİNE ETKİSİ

Faruk İMERYÜZ ,Naci SİNCER

- This experiment has been carried out to study the effect of twice yearly shearing on the quality of mohair and kid production and mortality in different ages of Angora Goats. 220 head of does have been used in Yerköy Farm for this experiment, which 70 head of kid were six month of ages, 50 yearling does, 50 2.5 years old and 50 3.5 years old at the beginning of study. 220 does was randomly divided in to two equal groups, (1- Experimental group or twice shearing, 2- Control group or once shearing.) Experimental goats were shorn twice yearly, first shearing taking place in 20 th August 1965 and second 12 th March 1966. Control goats were shorn once only in March. Mohair samples have been taken from hip region in each shearing.

Experimen goats produced more mohair in the all ages groups; 66 g, 306 g, 488 g, 350 g respectively and also had longer staple (sum of the august and march measurement). Summer fleeces had more grease and clean weight and longer staple than winter fleeces out of the one year old. The live weights at the beginning and end of experiment given on the table 3.

Fiber diameter of all groups determined by wedge-scale method, and the mean values given on the table 6. There was no significant different between two groups. The percentage of clean fiber content for all groups given on the table 5. The yield of summer fleeces were higher than winter fleeces. The percentage of various fiber types determined by benzene method and the mean values given on the table 8. Summer fleeces had more kempy fiber. Fiber elasticity of summer fleeces were more tahn winter fleeces. There were no significant effect of twice shearing on the breaking and tensile strength of mohair and also pregnancy, fertility, kid production and mortality. Keywords :