Publications

Titles

English :

Some aspects related to calving behaviour of sakha friesian dairy herdin delta rigon ,Egypt

Arabic :

بعض الظواهر التي لها علاقة بسلوك الولادة في قطيع الأبقار الفريزيان الحلابة بسخا في منطقة الدلتا بمصر

Abstract

Four hundred eighty one friesian cows in sakha animal production researh institute ,delta region ,Egypt,were used in this study throughout the period from 1995 to 1998 , to follow the calving behaviour of sakha dairy herd ,the relation between calving time and each of dam calving weight ,parity , calving month, gestation length, calving ease, and calf birth weigh, this investigation also includes also the study of the effect of calving time on calf health, calves mortality rate, incidence of metreites and retained placenta .all cows were kept under the management . chi-square analysis for the data obtained in this study indicated that their was a significant relation for each of dam calving weight , calving month , parity, calving ease and calf birth weight with time of calving . gestation length had no signifcant effect on time of calving . This study indicated that the calving time have a significant relation between calf heath , calf mortality rate in first day and first week after calving , metrietes incidence and retained placenta in their dams. Key word :Friesian, calving time, dam weight, gestation length, parity, birth weight, calving ease, calf health, mortality, metrietes and placenta .

Publication year

2002

Pages

16-25

Availability location

معهد بحوث الانتاج الحيوانى- شارع نادى الصيد - الدقى - الجيزة

Availability number

Organization Name

Animal Production Research Institute (APRI)

serial title

Egypt Journal.Applied Science

Department