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.
As an old saying goes, “without some sense of direction, you can wind up anywhere.”
It doesn’t take a lot of cows to make biogas from manure. The real question is how does the capital and management cost of a digester fit into your farm business and management situation?
Nutrition has many effects on the health of the calf and improvements must be considered to reduce the high incidence of morbidity and mortality as found on dairy farms around the world.
Shrink is defined by Kansas State Extension Specialist Michael Brouk as the amount of feed delivered or grown on a farm that is never consumed. Brouk estimated that shrink may account for 5 to 30 percent of feed purchased.
The opportunity exists to improve reproductive performance as measured by days to last breeding, calving interval, and 21-day pregnancy rate.
Research published in the July issue of the Journal of Dairy Science (Moore et al.) investigated the use of a Brix refractometer to manage total solids in nonsaleable milk fed to calves.
The dairy industry is struggling more than ever with low milk prices and high operating expenses.
Our students excelled in a variety of areas, including earning first place overall in the Outstanding Chapter competition for the third consecutive year.
Four individuals from Penn State's Department of Dairy and Animal Science received recognition at the annual American Dairy Science Association (ADSA) meeting in Montreal, Quebec.
A discouraging feature of recent visits to digester projects in Pennsylvania and neighboring states is that we are still seeing many of the “same olde mistakes and problems” on our digester projects.
The debate of organic vs. inorganic bedding and which has better udder health has gone on for some time.
It appears that linolenic acid is deficient in typical calf diets.
Dairy farmers – and other farmers too – should not be paying Pennsylvania sales tax on electricity!
Life is all about choices. Some work out great, some not well at all. The key though is to always have a choice, because the alternative is not pleasant.
There are many different ways that we can reduce our carbon footprint, either on an individual basis, as a farm, an industry or even a country.
Evidence has been accumulating that lactating cow mortality rates have increased more than 2 fold since 1980.
What can the active compounds cinnamaldahyde and eugenol found in essential oils do for your dairy cows?
Dr. Kevin Harvatine was recently hired as an Assistant Professor of Nutritional Physiology by the Department of Dairy and Animal Science.
Progress is be made to understand more about this condition and treatment strategies have improved but diagnosis of the type of cysts is still a challenge. However, culling chronically cystic cows, developing a strategy to avoid over conditioned dry cows and providing balanced transition cow ration will certainly help minimize periparturient problems so that the incidence of cystic ovaries remains low.