April 20 2012
I have had the privilege to visit a number of dairy farms during my lifetime. Without a doubt, dairy farmers are friendly and interested in learning new concepts. During my travels, I have benefitted greatly...
April 20 2012
Ultrasynch - a simpler program to breed cows. Improved preg rates has been just one positive result of using ultrasynch, reports Dave Stanton of Saylor Dairy (left) and Stevie Braun of COBA Select Sires...
April 20 2012
In 1989, a major breakthrough in sperm sexing was reported by USDA scientists in rabbits. Insemination of rabbit does with Y-chromosome-bearing sperm resulted in 81 percent males, whereas insemination...
April 18 2012
Many dairy farmers turned sour on sexed semen as 2009 unfolded. The reasons were obvious: Cash flows reduced discretionary spending, and sexed semen was viewed as discretionary, $30 more a straw compared...
April 18 2012
Reproductive failure is the number one reason for involuntary culling. The economic importance of getting cows pregnant in a timely manner is, thus, no surprise. Fertility decline is a combination of many...
April 16 2012
This disagreeable problem takes its toll on fresh cows. Identifying at-risk cows is your first challenge. The goal of your fresh cow program should be to get early peak milks while quickly returning cows...
April 16 2012
When was the last time you or your A.I. technicians had an A.I. refresher course? A.I. breeding is not like riding a bicycle - once you master the skill of cycling you have no need of a refresher course....
April 16 2012
Oh, how things have changed in the last 125 years! Although no one now living was alive in 1885, we have good evidence that dairy cattle reproduction in 2010 is very different - not the biological processes...
April 16 2012
Reproduction drives the dairy farm business. Not only does it determine peak milk production but it drives the operation's long-term replacement pipeline. Dirt lots when well managed (dry, with soft surfaces,...
April 12 2012
What's the best timed A.I. program? There are so many synchronization programs that can be used on my dairy herd. My question for a future Artificial Breeding column is which synchronization program would...
April 12 2012
Research papers focused on heifer-specific reproductive issues were presented at the 103rd annual meeting of the American Dairy Science Association in Montreal, Quebec, Canada. In this review, we will...
April 10 2012
Comparing crop insurance plans might give us more insight on how to develop a better structure to protect and insure dairy. Crop insurance programs date as far back as the 1930s, but today's extensive...
April 10 2012
As yields improve over time, a picture of how to manage corn for optimal silage performance has emerged. The yield march continues for corn silage, according to Joe Lauer, University of Wisconsin extension...
April 10 2012
The goal of silage face management is to minimize exposure to oxygen. In the presence of oxygen, yeast can metabolize lactic acid (a strong acid that keeps the silage pH low). When pH rises, undesirable...
April 5 2012
How you can identify and correct abnormal calving positions. That heifer is definitely in labor. Sometimes you can just tell. She is straining and looks uncomfortable. Plus, there has been little progress...
April 5 2012
Learn what you can about calving now before it is too late. Two clean, white tips of hooves are peaking out of the rear end of your 4-H heifer. Soon, a pink nose starts to come. It is her first calf, and...
April 5 2012
Traditionally, bull fertility is difficult to evaluate in the laboratory, although many attempts have been made to assess differences among bulls. Part of this difficulty exists because sperm are exposed...
April 3 2012
Tweaking synchronization protocols with GnRH, CIDR, or through Double Ovsynch all boosted pregnancy rates. This past summer researchers from around the world met in Montreal, Quebec, Canada at the joint...
April 3 2012
Back to basics: Heat detection is still the best tool for getting cows pregnant! As we all face a new year in the dairy business, we pray for better milk prices. But in surviving in these challenging times,...
April 3 2012
Since the advent of A.I. synchronization programs in the early 1990s, many producers now use reproductive hormones to manipulate the estrous cycle of cows in order to time ovulation and insemination and...