Linear-threshold animal model for birth weight, gestation length and calving
ease in United Kingdom Limousin beef cattle data.
"The delay in a heifer's first calving
is usually due to the fear of calving
immature, undersised heifers, but with the right management, heifers can, and should be, run with a bull at 14 months."
"In some cases prolonged calvings
can result in more calf deaths.
Since 1978, systematic aerial surveys have been conducted during the calving
and post-calving periods in the Milne Point Unit (MPU), Kuparuk Unit (KRU), and Prudhoe Bay Unit (PBU) of the oilfields and in undeveloped areas (Cameron et al., 1992; Jensen and Noel, 2002; Lawhead and Prichard, 2002).
"We've also found that by eliminating stress and problems at calving
, our Salers cows get back in calf immediately.
To determine if cow moose return to the same area in subsequent years to give birth, data collected from collared moose were used to delineate potential calving
sites through examination of location patterns.
For the complete gestation and calving
calendar, refer to the Seeds of Gold Magazine in the Saturday Nation of Saturday, August 10, 2019.
Other authors report contradictory results regarding the impact of age and effect of subsequent calving
on calves' birth weight.
The selected records were based on the following criteria: lactation length [greater than or equal to]120 and a$?392 days and calving
interval [greater than or equal to]300 and a$?700 days.
Soya is added at one third of a kg per cow per day, three weeks before calving
and continued afterwards to improve colostrum.
Make sure the cow is in good body condition before calving
, so she can produce the best colostrum.