ASM ISSUE: 224 Colostrum Is Still King
Colostrum is just as vital to calves as it is to newborn babies. We all know that it contains essential immunoglobulin (Igs) to strengthen immunity and an unmatched energy level. In this article by Hoard’s Dairyman, Maggie Seiler quotes Mike VanAmburgh of Cornell University to discover why colostrum is a must for calves.
Colostrum is important because it is filled with signalers/growth factors that help the calf achieve optimum success. Colostrum contains IGF-1, insulin, prolactin, and leptin. VanAmburgh thinks that Igs are not the main reason that calves should have colostrum. He says that calves can build their Igs, but there are other essential things they must get from their mothers by way of colostrum.
ASM ISSUE: 225 Colostrum Is Still King
Dairy Herd Management just published an article by Maureen Hanson that will be quite beneficial for producers, especially since summer is here. Many farms prefer to keep their pre-weaned dairy calves in calf hutches, as this is said to provide many advantages. Sadly, the lack of climate control can be hard on calves and may cause them to experience heat stress.
Jud Heinrichs and Colleen Jones are educators at Penn State University’s Dairy Extension. According to them, certain factors like excessive humidity, high temperatures, and the hot sun can cause heat stress in calves. Hair coat, bedding, moisture, air movement, and also rumination activity are some other factors that may come into play.