When raising replacement heifers, cost per pound of gain is a far more important metric than daily feed cost, according to Tamilee Nennich, dairy nutritionist and board member for the Dairy Calf and Heifer Association.
Hot and dry cornfield conditions are breeding grounds for dangerous aspergillus ear and kernel mold that produces aflatoxins. This toxin is a carcinogen, can harm livestock and can lead to rejection at the elevator.
Flies are more than just an annoyance for calves in warm weather. High fly populations also can spread diseases among calves; cause stress and reduced immunity; and negatively impact growth and weight gain.