Hey there!
I do not have experience with Zebu.
I do have some experience with highland cows!
They're not as TINY as Zebu, but they're way more manageable compared to a longhorn, angus, hereford, or other standard cattle breed.
Proportionally smaller pasture requirements,
They have a wonderful temperament - very friendly toward people, clever, and easy to train. Almost never aggressive.
All the highland cows and bulls I've worked with have LOVED getting brushed and groomed, though brushing their winter fur is not usually necessary as a health measure.
They're also very expressive, so in the rare instance that they are annoyed, they communicate it clearly.
They're very suited to colder climates like Delaware with their shaggy winter fur, and are generally low-maintenance (except for their hooves)
They also do very well in low-input and organic feeding systems: primarily pasture works just fine if you want to raise them for beef.
Well-suited for pulling small carts, tbh they're my favorite kind of cattle <3
I may be biased, but there are some cons:
- Does not like confinement. They really need a pasture to roam around in, and get anxious & stressed if you keep them in a barn stall for more than a few days. Some are more sensitive to this than others.
- High maintenance hooves. Their breed is used to rocky mountainsides and hardpacked earth. Walking on very soft and loamy pastures all the time can mess up their feet.
- Trouble with ticks/lice in the summer. Thick fur means pests have an easier time getting established & are harder to get rid of.
- Poor tolerance to heat. Even their summer coat is pretty thick. Delaware summers should be totally fine tho, I'm used to Kentucky summers.
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If you're dead set on the miniature cow, I believe there are miniature highland cows.