Livestock Studies 2004, Vol 44, Num, 2     (Pages: 023-035)

Milk Yield of White Karaman (WK), Kıvırcık x WK B1 and Chios x WK B1 Ewes and Growth and Livability of Crossbred Lambs

Durhasan MUNDAN 1 ,Ceyhan ÖZBEYAZ 2

1 Harran Üniversitesi Veteriner Fakültesi Zootekni AnaBilim Dalı, Şanlıurfa
2 Ankara Üniversitesi Veteriner Fakültesi Zootekni AnaBilim Dalı, Ankara
Viewed : 872 - Downloaded : 598 The aim of this research was to study on the milk yield and udder characteristics of White Karaman (WK), Kıvırcık x WK B1 and Chios x WK B1 Ewes and Growth and Livability of Crossbred Lambs.

The study was conducted at Lalahan Livestock Research Institude in 2001. Data were collected from two and three years old ewes of 19 Akkaraman, two years old of 12 Kıvırcık x WK B1 and two years old of 13 Chios x WK B1 Ewes and 47 lambs.

Daily milk yield, lactation yield and lactation length were 282.22 g, 43.07 kg and 155.8 days for White Karaman; 275.19 g, 42.71 kg and 162.10 days for Kıvırcık x WK B1; 453.79 g, 73.01 kg and 178.20 days for Chios x WK B1, respectively.

The least squares means of the width, circumference and volume of udder for White Karaman, Kıvırcık x WK B1 and Chios x WK B1 were 13.99 cm, 43.75 cm and 1226.74 ml; 13.52 cm, 44.64 cm and 979.06 ml; 15.06 cm, 50.99 cm and 1213.33 ml on the 60th day. Corresponding values for the 150th day of lactation were 11.17 cm, 39.03 cm and 618.85 ml; 11.33 cm, 39.97 cm and 557.94 ml; 12.69 cm, 45.14 cm and 502.21 ml respectively.

Phenotypic correlation coefficients between total lactation yield and values of the width, circumference and volume of udder of 60th days of lactation for White Karaman, Kıvırcık x WK B1 and Chios x WK B1 were -0.162, 0.641(P<0.01), 0.341; 0.248, -0.204, 0.336; -0.506 ,-0.313, 0.079, respectively.

While the survival rates of White Karaman, Kıvırcık x WK B1 and Chios x WK B1 lambs were 100 % on 120th days, they were 95.24, 91.67 and 85.71 % on 180th days, respectively.

Least squares means for White Karaman, Kıvırcık x WK B1 and Chios x WK B1 lambs were 4.74, 4.32 and 3.96 kg (P<0.05) for birth weight; 22.35, 17.10 and 15.24 kg (P<0.001) for 90th days (weaning weight); 30.48, 23.32 and 21.65 kg (P<0.001) for 180th days; 49.49, 39.29 and 35.87 kg (P<0.001) for yearling weight, respectively.

Results of the study showed that Chios genotype will be used for devoloping milk yield. Survival rate of the genotypes were similiar at weaning age. Live weight of the WK had more than the others at 12 months. Keywords : Crossbreeding, Growth, Livability, Milk Yield, White Karaman (WK)