Albert De Vries

0000-0003-4511-0388

Should You Breed Cows during the Summer in the Southeastern United States? An Economic Analysis of a Dairy Herd in Florida

Klibs N. Galvão and Albert De Vries

When Should We Stop Breeding Dairy Cows?

Klibs N. Galvão and Albert De Vries

A UF/IFAS numbered Fact Sheet. in support of UF/IFAS Extension program: Animal Systems

Economic Evaluation of Dairy Cow Stocking Density

Albert De Vries, Haile Dechassa, andHenk Hogeveen

What is the optimal number of dairy cows in a pen after their transition period? This document discusses the economically optimal stocking density for lactating dairy cows, measured as maximum profit per stall. It also introduces a spreadsheet that can be used to calculate the effects of various inputs on the economically optimal stocking density. 

Economic Feasibility of Cooling Dry Cows: Findings and Spreadsheet

Fernanda Ferreira, Geoffrey Dahl, andAlbert De Vries

The negative effects of heat stress in lactating cows are well known, but only recent studies have explored those effects along with the full benefits of cooling dry cows. Recent work at the University of Florida has demonstrated the benefits of dry cow cooling on calf performance and cow health in the next lactation. This 5-page fact sheet discusses the economic losses from milk production due to heat stress, investment, utilities, maintenance, and feasibility analysis.

Economic Value of Genetic Merit of Dairy Semen

Albert De Vries

Attempts to calculate the economic value of semen have been made since at least the 1970s. The basic calculations have since become available. This fact sheet reviews these calculations, adds a few other considerations, and offers estimates of the worth of the genetics of dairy semen.