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

After testing, Island Health deems water safe around industrial fire site

Concerns about water quality arose after Sept. 10-11 fire at Schnitzer facility in Cassidy

Ladysmith Downtown Public Washroom project a semi-finalist for FortisBC grant

If successful, the project will gain $15,000 in funding from FortisBC

Council sets February 2021 as kick off for engagement on Official Community Plan

The scope of the OCP will be ‘comprehensive and new’

Trail proposed to connect Cedar and Yellow Point

The Yellow Point Ecological Society, (YES) is proposing a 22km multi-use trail… Continue reading

Little Valley Restorations celebrates 40 years in business

Opened in 1980, Little Valley Restorations grew from a hobby to a celebrated business

3 new deaths due to COVID-19 in B.C., 139 new cases

B.C. confirms 40 ‘historic cases,’ as well

Ferry riders say lower fares are what’s most needed to improve service

Provincial government announces findings of public engagement process

Woodgrove Centre posts plans to make masks and temperature checks mandatory

Nanaimo mall advises in letter to customers that rules will come into effect Monday, Sept. 21

Supreme Court Justice Ruth Bader Ginsburg dies at 87

The court’s second female justice, died Friday at her home in Washington

Comox Valley protesters send message over old-growth logging

Event in downtown Courtenay was part of wider event on Friday

Application deadline for fish harvester benefits program extended

Those financially impacted by the pandemic have until Oct. 5 to apply

Emaciated grizzly found dead on central B.C. coast as low salmon count sparks concern

Grizzly was found on Gwa’sala-‘Nakwaxda’xw territory in Smith Inlet, 60K north of Port Hardy

VIDEO: B.C. to launch mouth-rinse COVID-19 test for kids

Test involves swishing and gargling saline in mouth and no deep-nasal swab

Young Canadians have curtailed vaping during pandemic, survey finds

The survey funded by Heart & Stroke also found the decrease in vaping frequency is most notable in British Columbia and Ontario

Most Read