(2) If the lien claimed under subsection (1) of this section is for stud or artificial insemination services, the lien attaches only to the female animal to which the male animal is let or which is artificially inseminated, and the offspring.

(3) The lien on crops and the proceeds thereof attaches on the date a person performs labor, delivers materials or provides services to aid the growing or harvesting of crops. The lien on animals and the proceeds thereof attaches on the date a person performs labor, delivers materials or provides services to aid the raising of animals, or in the case of unborn progeny, attaches on the date the claim of lien is filed.

(4) As used in this section:

(a) "Growing and harvesting" includes tilling, sowing, planting, cultivating, irrigating, pruning, thinning, fertilizing, spraying, dusting, cutting, harvesting, reaping, threshing, gathering, transporting, securing or otherwise performing or furnishing labor, service or materials to aid the production of any agricultural crop.

(b) "Materials" includes seed, fertilizer, pesticide, petroleum products and other products used in agricultural practice to aid the growing or harvesting of crops, and any mixtures or preparation for feeding animals, any of the constituent nutrients of an animal ration and any other food for animals.

(c) "Performs labor or provides services" includes personal labor and the use of machinery, equipment or animals rendered by the lien claimant or by the agent of the lien claimant, employee or subcontractor.

(d) "Raising animals" includes feeding, herding, pasturing, shoeing, artificially inseminating, providing male animals for the breeding of female animals, caring for and managing animals kept or raised for use or profit. [1975 c.648 §18; 1985 c.469 §2; 2001 c.301 §6]