Cows and teenagers both get moo-dy, B.C. researchers say

First-of-its-kind study on dairy cattle could prove useful for farmers, researchers say

A UBC study released Feb. 12, 2020, has drawn parallels between dairy calves and human teenagers undergoing puberty. In this Aug. 31, 2016, file photo, a Holstein cow stands in a pasture at a dairyfarm near Calgary. (Jeff McIntosh/The Canadian Press)

It turns out the months – which can feel like years – of teenage angst isn’t just seen in the human household but also in the farm animal kingdom, according to a group of scientists at the University of B.C.

On Wednesday, researchers from the animal welfare program at UBC released findings from a long-term study which aimed to understand the development of personality traits over a dairy cow’s lifespan, which is roughly five years. Unsurprisingly, the study is the first of its kind into farm animal species behaviour.

The research, led by UBC professor Marina von Keyserlingk, involved observing how calves and cows reacted when placed in a new environment alongside a person they had never met before and a new object.

“Some calves and cows will immediately approach and investigate the object or human, or explore the new environment, while others will never touch the object or human and stand still for the duration of the test,” von Keyserlingk said in a news release. “We interpret the collection of these behaviours as reflecting two key personality traits: bold and exploratory.”

While calves between the age of three months and one year old won’t roll their eyes, make sassy remarks or slam their bedroom door shut, the study found a noticeable difference in a calf’s personality once they reach sexual maturity.

ALSO READ: Some cows are sadder than others, UBC study found

“This phenomenon is similar to that seen in humans, where teenagers often will express different personalities to that of when they were younger, and may again express different personalities when they grow up,” von Keyserlingk said.

“These changes in personality around puberty are also seen in squid, fish, junglefowl, and mammals like hamsters and mice.”

Researchers expect that a cow’s altered personality is linked to changing hormones. Dairy cattle are often mixed with new animals, or placed in new pens with new feeding equipment which also could play a role, the study suggests.

Researchers also found that calves that acted exploratory in the test situations generally ate more and gained more weight in order to produce more milk, compared to cows that reacted more fearfully of humans.

“These findings are important because they show that personality traits can be a useful indication of which animals will be most (or least) productive on the farm at different life stages,” said professor Marina von Keyserlingk, the study’s senior author, in a news release.

“Farmers could potentially identify calves and cows on the basis of personality who are likely to do well or poorly when faced with stressful farm-management practices.”


@ashwadhwani
ashley.wadhwani@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Science

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

CN suspending service between Williams Lake and Squamish, effective April 3

Rail traffic north of Williams Lake will be routed to Vancouver through Prince George and Kamloops

COVID-19: Interior Health orders closure of all fitness centres until May 30

The order is subject to revision, cancellation, or extension

Cache Creek council makes decision to close pool for 2020 season

Effects of COVID-19 pandemic and delinquent taxes two factors in decision

Q&A: Interior Health CEO answers questions on COVID-19 response

Susan Brown, president and CEO of Interior Health, answers questions regarding COVID-19

VIDEO: How doctors in Canada will decide who lives and dies if pandemic worsens

Officials in several provinces have been developing guides so that doctors don’t feel alone

Two people fined after B.C. police spot online ads re-selling 5,000 surgical, N95 masks

Police confiscated the masks, being sold at inflated prices, and now working with Fraser Health

General exposure to public low after inmate tests positive for COVID-19: Interior Health

The Okanagan Correctional Centre inmate is receiving appropriate care

Sex workers face new risks during COVID-19 pandemic

‘Desperation has kicked in’ for vulnerable, undocumented workers unable to access help

Unclear if Cowichan couple refusing to self-isolate will face penalty

No fines or charges have been laid to date, including Cowichan couple who won’t self isolate

COVID-19: Postponed surgeries will be done, B.C. health minister says

Contract with private surgical clinic to help clear backlog

Black Press Media ad sparks discussion about value of community newspapers

White Rock resident hopes front-page note shines light on revenue loss during COVID-19 crisis

Don’t stop going to the doctor, just do it virtually: B.C. association

Doctors encourage patients to access telephone, online visits

Most Read