how long for livestock gestation
A cow carrying a calf a long time in one gestation is likely. to do so in the next gestation. Some cows in this study had an. average gestation period of 288 to 290 days, whereas others had a. period of only 274 to 276 days, irrespective of the sex of the calf.
Report Abuse. Gestation: Average gestation length or length of pregnancy for sheep varies from 144 to 151 days (about 147 days; figure 11). Individual pregnancies may vary from 138 to 159 days.Generally the earlier maturing meat breeds and the high prolific breeds such as the Finn have shorter gestation lengths (144 to 145 days), while the slower maturing finewool breeds (Rambouillet) have longer periods (150 to 151).ndividual pregnancies may vary from 138 to 159 days. Generally the earlier maturing meat breeds and the high prolific breeds such as the Finn have shorter gestation lengths (144 to 145 days), while the slower maturing finewool breeds (Rambouillet) have longer periods (150 to 151).