Intensively reared
What does ''Intensively reared'' and '' cramped living'' mean in this sentence:
I think it's common knowledge that intensively reared livestock suffer horribly because of their cramped living conditions.
Thank you

Question

Intensively reared
What does ''Intensively reared'' and '' cramped living''  mean in this sentence:
I think it's common knowledge that intensively reared livestock suffer horribly because of their cramped living conditions. 
Thank you

Answer

Intensively reared:
Reared as in "raised", and it is done intensively to increase the farm's production.

Cramped living conditions:
The conditions (the state/quality of location, space, cleanliness, safety, etc) in which they live is cramped (= overcrowded/there is very little room compared to the total amount of things(for instance, chickens, cows, people, etc), so it is difficult or almost impossible to move around).

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