Chewing is generally considered a problem for both dairy cows and dairy producers.Problem and organic standards usually require some grazing access.
That said, many manufacturers prefer housing systems based on zero access to grazing, because free maternity charger is designed to offer a high degree of comfort for cows.
A well -designed shed gives cows a comfortable place to establish, protection against the elements and free access to a well -balanced diet that helps to maintain a high degree of milk production.Need of access to grassland, and what are the pros and cons of grazing access?
Continuous access to grazing is not an option for many Canadian manufacturers who consider our climate, but can even offer temporary access benefits?In a study, UBC scientists compared the limb of cows to a freestall scour with cows that are limited for grazing for five weeks.
The running score was used to assess lameness: cows with a running result of one were considered healthy and cows scored five were considered seriously weak.Animals.Ni -groups of cows were limited to every treatment for five continuous weeks somewhere in July to October.
The average running results for grassland and freestal treatments were both three at the start of the experiment.All cows were scored that was scored every week, and the time was measured to lie with the help of a data log who was linked to each hind legs of the cow.
Average running results had improved for cows in grazing despite less time, but the dozens of cows in freestalls remained stable or deteriorated.Seriously paralyzed cows.
This study indicates that cow hail can be improved by offering even temporary access to grazing, but this may not be the case for other aspects of Koe -Welfare.Or no access to shadow that may increase the risk of heat stress in the summer.
To better understand if and how cows appreciate access to grassland, UBC scientists simply allow animals to vote with their feet.To the stable.
At the start of the experiment, the cows in the barn or outside on grassland were held 2 days each, after which the cows got free access to both options for 3 days.under a series of climatic conditions.
What do the cows prefer?Be indoors (ie more than 20 ° C).
This study indicates that cows have no total preference for a well -designed freestall barn nor for grazing;Instead, preferences vary depending on the time of day and the environmental conditions.Open the barn doors, giving cows access to grass when choosing.
But when the cows were given permission to get a free choice between grassland and Freestal -child, they continued to eat so much TMR as when they were kept in continuously.) with regard to cows that are not allowed outside.
To give a better test of the effects of accommodation access to grazing on production and intake, a third study was conducted.The evening 0800 the next morning.
Cows were fed with TMR in Freestall Child and Feed intake was registered.(on average 11, 9 kg/d) and high milk production (on average of 38.3 kg/d).
Earlier research has shown that cows that are only stored on grass, usually show a reduced intake and reduced milk production.Day.Cows are still grazing the grass at night, but this grass intake has not moved the intake of the TMR or reduced production.
In summary, these studies show that:
Together these three studies indicate that partial access to grazing is a practical control option for producers who want to promote the health and well -being of the cows while maintaining a high degree of milk production.
