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

B.C. salmon farms challenge activists’ demands for site closures

News reporting also unfair, inaccurate and distorted

Blitterswyk awarded another significant scholarship

The honours just keep coming for Chemainus Secondary School 2020 grad class valedictorian

Killer whales cause a scene

WHALE OF A TALE Art Carlyle captured these images of killer whales… Continue reading

Ladysmith shows strong support for COVID version of Tour de Rock

Senior donates $8,000 from proceeds of year-long bottle collections

Green Party pins Nanaimo-North Cowichan riding hopes on Istace

Leader Furstenau in town for the announcement of Chemainus businessman’s candidacy

105 new COVID-19 cases, 1 death as health officials urge B.C. to remember safety protocols

There are currently 1268 active cases, with 3,337 people under public health monitoring

U.S. Presidential Debate Takeaways: An acrid tone from the opening minute

Here are key takeaways from the first of three scheduled presidential debates before Election Day on Nov. 3

B.C. nurses report rise in depression, anxiety, exhaustion due to pandemic

A new UBC study looks into how the COVID-19 response has impacted frontline nurses

National child-care plan could help Canada rebound from COVID-induced economic crisis: prof

A $2 billion investment this year could help parents during second wave of pandemic

Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Join Black Press Media and Do Some Good

Pay it Forward program supports local businesses in their community giving

Search suspended for Indigenous elder last seen mushroom picking in northwest B.C.

Mushroom picker Thomas (Tommy) Dennis has been missing since Sept. 16

16 MLAs retiring from B.C. politics add up to $20M in pensions: Taxpayers Federation

Taxpayers pay $4 for every dollar MLAs contribute to their pensions

‘Bonnie’ and ‘Henry’ among latest litter of service dog puppies

B.C. Alberta Guide Dogs names two pups after provincial health officer

Most Read