Moose Calf Growth

by Curious

Calf Moose Growth at Birth

Calf Moose Growth at Birth

Calf Moose Growth at Birth
Calf Moose Growth at 15 Minutes
Calf Moose Growth at 45 Minutes
Calf Moose Growth at 60 Minutes

What are the dimensions of a moose calf at birth, six months, one year?

Thanks.



Thanks for the question Curious,

Moose calf growth begins at birth and accelerates as development occurs.

  • At one month in age a moose calf is about 110 cm in length and weighs about 20 kilograms.

  • At three months in age a moose calf is about 187 cm in length and weighs about 110 kilograms.

  • At five months in age a moose calf is about 210 cm in length and weighs about 180 kilograms.

  • At seven months in age a moose calf is about 200 cm in length and weighs about 160 kilograms.

The drop in length and weight of moose calf growth is attributed to lack of nutrition during the winter months.
  • At nine months in age a moose calf is about 195 cm in length and weighs about 150 kilograms.

  • At eleven months in age a moose calf is about 200 cm in length and weighs about 160 kilograms.

  • At thirteen months in age a moose calf is about 205 cm in length and weighs about 170 kilograms.

  • At seventeen months in age a moose calf is about 250 cm in length and weighs about 275 kilograms.

  • At twenty-one months in age a moose calf is about 265 cm in length and weighs about 255 kilograms.

  • At twenty-seven months in age a moose calf is about 275 cm in length and weighs about 325 kilograms.

  • At twenty-nine months in age a moose calf is about 275 cm in length and weighs about 350 kilograms.

Cow moose and bull moose calves grow at about the same rate with average weight gain of 1.3 to 1.6 percent per day. This growth rate continues until approximately 150 to 165 days.

Vince Crichton tells me he has measured moose in early December (about 6 and a half months) they measured in height from top of the hump to tip of the hoof – the average is 146 cm (range 139-160).

Six and a half month old calf moose
This moose is about six and a half months old.


The moose calf growth rate changes at that point because of breeding season and forage quality.
The decline in growth is a phase that will repeat itself through the balance of the calf moose life cycle.

The main difference between cow moose calves and bull moose calves at this point will be the decline in growth rate for cow moose calves is two times greater than that of bull moose calves.
The consequence of this growth pattern in cow moose is they will reach their maximum body size earlier in life and weight much less than that of bull moose.

Bull moose reach their peak weight just prior to the breeding season and have their lowest weight at completion of the rut.

Whereas cow moose reach their peak weights much later during the winter and have their lowest weight just after giving birth in the spring.
From the time moose calves are born they will gain and loose weight according to the various seasons and forage quality.

Moose calves born as twins will weight considerably less than those of a single birth. Information from the Alaskan/Yukon subspecies indicates that twins will weigh13.6 kilograms and single born moose calves will weigh 16 kilograms. Males do not weigh more than females at birth but the bull moose will weight 50 percent more than the female at maturity.

Moose calf growth is a cycle that is predetermined and varies with the seasons. The growth patterns are assumed to be the same amongst the moose sub-species.
Mark

"The Moose Man"

Reference: Ecology and Management of the North American Moose, (2007)

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