In addition to the other points people have made, with beef you have the problem of preservation. Unless you coordinate so everyone slaughters their cows at a d

In addition to the other points people have made, with beef you have the problem of preservation. Unless you coordinate so everyone slaughters their cows at a different time and you can share the meat (which presents problems as well), you end up with a glut of meat for a short period of time, rather than the continuing output of a chicken.