Butter versus Margarine? I trust cows before I trust chemists. Free Agriculture courses at Valley Education. Trust us at Valley Education we've been whipping up training for over 15 years. We are fully NZQA polyunsaturated and accredited. Stop churning over your future call Mark now. 027 236 6577. Valley Education & Training Enterprises Ltd. Butter versus Margarine? I trust cows before I trust chemists. Free Agriculture courses at Valley Education. Trust us at Valley Education we've been whipping up training for over 15 years. We are fully NZQA polyunsaturated and accredited. Stop churning over your future call Mark now. 027 236 6577. Valley Education & Training Enterprises Ltd.