Naji Qaesm M. Shaddad (1) , and Mohammed M. Dows*(2)
(1) Department of Animal production Faculty of Agriculture Aden University, Yemen.
(2) Pastures Department at the Central Highlands Regional Agricultural Research Station, Yemen.
(*Corresponding author:Eng.Mohammed M. Dows,Email:mohamed.daws2017@gmail.com).
Received: 13/04/2021 Accepted:27 /09/2021
Abstract:
The present study was carried out at the farm of Dairy Yemen in Thamar Governorate belonged to the Yemeni Economical Corporation on a total number of 351 records for 96 Fries in dairy cattle for their production period of 2005 to 2009. Data were analyzed using the computer program SAS (2004). Means of total milk yield, daily milk yield, and calving interval were 5444 kg., 15.62k,g, and 398daysy respectively. The calving Year had highly significant effects on total milk yield, daily milk, yield, and calving interval. Parity number had highly significant effects (p<0.01) on total milk yield, daily milk yield, and calving in the calvingalving Season had significant effects (p<0.05) on total milk yield, not significant daily milk yield, and calving interval.
Key Words: Cows, produce, standards, Milk, Yemen
Full paper in Arabic: pdf