Livestock Studies 1959, Vol 1, Num, 1     (Pages: 041-049)

DOĞU ANADOLU KIRMIZI SIĞIRLARINDA SÜT VERİMİNİN YAŞLA İLGİSİ, STANDART SÜT VERİMİ VE SAĞIM SÜRESİ

Sebahattin VARDAR ,Cahit YALÇIN

- We hava done this work on the Red Cattle of Eastern Anatolia, to calculate age convension factors and to determine Mature equivalent milk production and the length of lactation.

We could not calculate age conversion factors because of minority of the data.

We have shown that, Brown Swiss Age-conversion factors can be used in practical breeding operations with our Red Cattle.

Mature equivalent milk production for that breed is 1161.1 ± 21.3 Kg.

The length of lactation is 249.4 ± 0.9 day. Keywords :