Keys to minimizing respiratory disease on calf ranches

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On today’s dairies, capitalizing on herd health and productivity begins well before a first-calf heifer steps foot into the milking parlor. In the 120-day time span a dairy heifer spends on a calf ranch, the immune systems of young heifers are built from square one. The quality of care and extent of any disease exposure during this stage can affect lifelong productivity.

Threats to calf health vary by age. In very young calves, diarrhea is the biggest health threat. But post-weaning, pneumonia becomes the biggest threat to heifer calves. By implementing straightforward management practices, heifers can be healthy and develop into strong breeding-age animals with thrifty immune systems.

Keys to Success: Nutrition

“The viruses these heifers are exposed to set the bacteria up to thrive,” says Dr. Mark van der List, Professional Services Veterinarian with Boehringer Ingelheim Vetmedica, Inc. “Viruses damage the lining of the respiratory tract, and that gives bacteria a greater opportunity to cause disease.”  

The first requirement for minimizing respiratory disease on calf ranches is good nutrition. To have well-developed and strong immune systems, heifers must be on a sound diet, according to Dr. van der List. Sometimes, calves in hutches can be underfed, leaving them vulnerable to infection and disease that may have otherwise been avoided. By ensuring these animals are fed properly, a ranch manager is ensuring young heifers develop a strong immune system to combat common pathogens.

Keys to Success: Comfort

Animal comfort plays an important role in minimizing disease risk. Housing environments that are either too hot or too cold put stress on an animal, which in turn may suppress immune system development. Animal housing is also important in preventing nose-to-nose contact between a sick animal and a healthy animal. Much like young children who quickly and easily share a cold virus in a day care center, calves that contact each other can pass a virus among a commingled group rapidly.

Even ranch workers can spread disease. When a worker has handled a sick animal, he should be aware that his hands, clothing and footwear are potentially contaminated, and he should take appropriate steps to sanitize before contacting any other animals on the ranch. Simple husbandry techniques like good nutrition, basic hygiene and comfortable, clean calf housing go a long way in keeping animals healthy.

Keys to Success: Vaccination

Dr. van der List stresses the importance of developing and implementing a comprehensive vaccine protocol to help prevent the viral diseases like BVD, BRSV and IBR that can pave the way for bacterial respiratory pathogens, such as Mannheimia haemolytica, which can affect the productivity of the cow for her entire life.

A modified-live viral vaccine like Pyramid® and its family of vaccines, available from Boehringer Ingelheim Vetmedica, Inc., provide broad coverage protection against many of the viruses that can wreak havoc on young heifers before they even step foot on the dairy. PYRAMID provides single-dose protection against BVD, IBR and BRSV, while PYRAMID 5 + PRESPONSE SQ provides protection against these respiratory pathogen viruses plus M. haemolytica.

Getting a calf off to a top-notch start and setting her up for an optimal production future require use of all of the keys to success. Talk to your veterinarian about ways PYRAMID vaccines can help you get there.

For more information, please visit: www.bi-vetmedica.com.

Pyramid and Presponse are registered trademarks of Boehringer Ingelheim Vetmedica, Inc. ©2013 Boehringer Ingelheim Vetmedica, Inc.


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