Current Progressive Dairy digital edition
Advertisement
breadcrumbs

A.I. & Breeding

From estrus and heat detection to genomics and sexed semen, discover the latest information to improve reproductive performance.

LATEST

Starting with this column and continuing each month, this space will include benchmarking data on a number of key performance indicators (KPI) for U.S. dairy producers.

The data has been compiled from 175 herds and about 182,500 cows located across the United States that are participating in Alta’s AltaAdvantage® program. These herds average approximately 850 cows, with a minimum of about 200 cows, and a maximum of 4,000 cows. All herds are managed under commercial conditions, where income is mainly generated from the production of milk.

Read more ...

The gap between the Holstein breed’s number one net merit bull and other sires remains wide. As of February’s net merit sire evaluations, more than 90 points separated O-Bee Manfred Justice’s daughters from the offspring of other bulls in the breed. Since 2003, the bull has remained the highest net merit bull. He is also currently the second-highest TPI bull in the breed.

Read more ...

The daily challenge of getting cows pregnant is nothing new to any dairy producer. What is new is the variety of approaches researchers are taking to understand the mechanisms underlying this problem and propose effective solutions to it. Our applied reproductive research program in the Department of Animal Science at Michigan State University is focused on controlling ovarian physiology to optimize fertility of lactating dairy cows. Our goal is to develop and utilize new information to improve the fertility potential of Ovsynch.

Read more ...

Accelerated Genetics adds balance and power to Holstein lineup
Accelerated Genetics lineup continues to impress Holstein breeders worldwide and now has added new sires after the February 2007 dairy sire proofs. New PACE graduates 014HO03964 BOB, 014HO04244 GLASCOW, 014HO04229 WES, 014HO04250 BIZ, and 014HO4213 GEORGE along with Winner’s Circle graduate 202HO00231 VELVET add to the strength of the lineup.

Read more ...

Historically, to a lot of dairymen, calving ease has been a bit of a secondary trait. In many cases semen buying decisions were more centered on how much production or how much type a sire had. Calving ease was thrown into the mix almost as an afterthought, or as something to use on the heifers.

However, the most stressful part of a cow’s life cycle is the calving process and its postpartum aftermath. The quality of life of a dairyman might increase dramatically if we could eliminate difficult calvings, retained placentas, ketosis, milk fever, displaced abomasums, etc. There would probably be a little less concern over the diminishing availability of large animal veterinarians if these ailments could be eliminated.

Read more ...

It is well known that daughters from artificial insemination (A.I.) sires produce more milk than those bred by natural service. Incorrect A.I. techniques can lower the overall success rate of your breeding program. At one time, most producers have learned correct techniques in semen handling and insemination procedures, but unfortunately, many have developed some bad habits. Reviewing proper procedures should help eliminate many of these mistakes.

Read more ...