Edited by Dr. Jud Heinrichs, Professor of Dairy and Animal Science, Dairy Digest features articles by Penn State's experts in dairy management, engineering, herd health, and related areas. Dairy Digest has been published by the Department of Dairy and Animal Science and Penn State Cooperative Extension since 1963.
Research herd demonstrates challenges of grouping cows.
Appearance alone does not reliably predict IgG content.
Increased scrutiny requires proper protocols.
Increasing particle size will increase chewing activity and saliva production.
Milk fat is a valuable part of what goes into the bulk tank.
Many challenges to quantifying methane emissions from wild ruminants.
Law will ban manufacture and use of incandescent bulbs
Concerns about testing for pharmaceutical residues.
Several factors contribute to older age at first calving.
Tips for accommodating head and lunge space.
A study of calf milk pasteurization on six farms in central Pennsylvania.
Data regarding antibiotics in dairy products and meat has been monitored and of concern for many years, but recently government agencies, medical personnel, and consumers have place much more interest in this public health issue.
Field surveys show that more than 50% of cows will experience one or more metabolic or infectious disease process following calving.
Manure nutrients, a valuable commodity in the past, are becoming an unwanted pollutant. The primary concern is with nitrogen and phosphorus which, through run-off and leaching of manure-amended soils, find their ways into ground and surface water.
High milk quality is a product of management and not treatment.
Conversations that your employees have off the farm reflect on you and your business and go a long way in shaping your image in the community. But you can’t control what employees say on their time off, right? Wrong.
Private companies and money sources supply the expertise, funding, equipment and management help necessary for the design, construction and operation of these plants.
Even under ideal weather and housing conditions pneumonia is often just around the corner.
Research published in the December issue of the Journal of Dairy Science evaluated the effects of cold stress on calf growth, health, and immunity.
Availability of corn distillers grains plus solubles has increased substantially and, consequently, the interest in using these feeds in dairy cattle diets has also increased.