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It you are looking for information pertaining to animal reproduction, artificial insemination, in vitro fertilization, culling for fertility, or maintaining your herd bulls, this section has what you are looking for.

Calving and rebreeding tips

published: November 19th 2020 by: Chad Zender, Ph.D. source: Purina Mills

Calving and rebreeding are two sides of a coin; a calf is ultimately the result of a year-round breeding plan for cattle. Simultaneously preparing for beef cattle calving and rebreeding puts you in position to achieve your breeding herd goals: A 365-day calving cycle A tight calving window More and bigger calves How a heifer or cow calves out will impact how quickly she can be rebred....

Role of the bull in poor pregnancy outcomes

published: September 18th 2020 by: Sandy Johnson, Kansas Extension Beef spe

When the number of cows pregnant is far below expectations, poor reproductive performance by both cows and bulls must be considered.  Keep in mind that in some cases multiple issues may contribute....

Producers may find two-stage weaning process useful

published: September 18th 2020 source: Oklahoma State University Extension

Cattle producers have several options to reduce animal stress during weaning.     “Many people eat a lot when they are stressed, but calves tend to do the opposite,” said Earl H....

Valuing bred beef heifers

published: August 25th 2020 by: Dr. Andrew Griffith source: University of Tennessee

Several weeks ago, there was a discussion on rules of thumb for valuing bred beef heifers. This led to a question this week about rules of thumb related to valuing bred cows and their appreciation and depreciation....

Some Ideas on Converting from Year-round Calving to a Controlled Breeding Season

published: July 20th 2020 by: Dr. Les Anderson source: The Ohio Beef Leader

Maintaining a controlled breeding and calving season can be one of the most important management tools for cow-calf producers. A uniform, heavier, and more valuable calf crop is one key reason for keeping the breeding season short....

Opportunities and Options for Pregnancy Staging

published: July 10th 2020 by: Sandy Johnson

For any number of reasons from shortage of pasture to cattle marketing opportunities, knowledge of if and when a cow or heifer is pregnant is valuable.  That information can be used to identify early bred yearlings for replacements and late bred or open females to remove from pasture in order to extend the grazing season....

Male Reproductive Traits and Their Heritabilities in Beef Cattle

published: July 2nd 2020 by: K. M. Cammack M. G. Thomas and R. M. Enn source: The Ohio Beef Leader

  July12020 Male Reproductive Measures Measures of fertility need to be considered not only in the female, but also in the male. Natural service has historically been, and continues to be, used in most beef cattle operations; therefore, acceptable bull fertility is critical to the success of these operations....

Female Reproductive Traits and Their Heritabilities in Beef Cattle

published: June 26th 2020 by: K.M. Cammack, M.G. Thomas and R.M. Enns source: The Ohio Beef Leader

Biological and economical efficiencies of cow-calf production are largely dependent on successful reproduction. Improvements in reproductive performance can be up to 4-fold more important than improvements in end-product traits in a conventional cow-calf operation selling market calves at weaning....

Beef researchers find improved pregnancy rates with new synch protocol

published: June 10th 2020 by: Linda Geist source: University of Missouri Extension

COLUMBIA, Mo. – A new estrus synchronization protocol evaluated at the University of Missouri greatly improves heat response and pregnancy rates to fixed-time AI in beef cows. MU Extension beef reproduction specialist Jordan Thomas says results from a recent large field trial found 82% of cows come into heat before the timed AI service using the protocol 7 & 7 Synch....

How many bulls do you need when synchronizing with natural service?

published: June 2nd 2020 by: Robin Salverson source: Igrow

  Regardless of the cattle markets, the ability to retain cows in the herd is critical while creating a uniform calf crop. If the heifer was born in the first 21 days, she stayed in the herd 5....

Predicting pregnancy loss

published: May 27th 2020 source: Penn State University

Pregnancy loss is the pits! The high frequency of pregnancy loss in dairy herds is now realized more than ever before and is extremely frustrating. When pregnancy diagnosis by palpation was the standard practice, commonly done at 35 to 45 days post-insemination, the period of highest risk for embryonic mortality had mostly passed....

Semen/Nitrogen Tank Care

published: March 13th 2020 by: Dean Kreager source: The Ohio Beef Leader

Handle with care. The inner container is only attached to the outer container at the neck and a crack in this connection will cause the tank to quickly fail! Recently I talked about proper semen handling so this week I thought it was worth providing some information on care and handling of the liquid nitrogen tanks....

Managing prolapses in cows

published: March 6th 2020 by: Dr. Elizabeth Crabtree source: Oklahoma State University College of Veterinary Medicine

With spring calving season approaching, many ranchers will have to deal with the dreaded uterine and vaginal prolapse. Both prolapses are closely associated with calving, but each has very distinct causes and occurs at different times....

Preparing for calving season

published: February 20th 2020 by: Olivia Amundson source: Igrow

Whether the calving season will start soon or is a few months away, it’s never a bad time to start preparing for the arrival of fresh calves on the ground. Here are some things to consider prior to the beginning of calving....

Sheep, cattle Pregnancy Ultrasound School set Dec. 5-6 in San Angelo

published: November 22nd 2019 by: Susan Himes source: Texas AgriLife Today

    The Texas A&M AgriLife Extension Service is now accepting applications for the Pregnancy Ultrasound School for sheep and cattle. The school will be held Dec. 5-6 at the Texas A&M AgriLife Research and Extension Center at 7887 U....

Top 5 reproductive failures in beef operations and how to avoid them

published: October 4th 2019 by: Ryon Walker, Ph.D. source: Noble Research Institute

Achieving high pregnancy rates is an important goal in every cow-calf operation. After every breeding season, we are either satisfied with the results or wondering why our pregnancy rates were so low and focusing on ways to improve them....

Evaluating gestation length in cattle

published: September 20th 2019 by: Dr. Justin Rhinehart

What is the gestation length of a cow? This question usually gets the answer of “it averages 283 days.” A better answer is “it can range from about 265 to as much as 295 days.” For breeds that have focused on low birthweight genetics for several generations, the average gestation length has shortened....

Getting cows to breed back quickly

published: July 15th 2019 by: Travis Meteer source: University of Illinois Extension

  Weather events, poor conditions and hay shortages will result in some cows that will need extra attention prior to and during breeding season. After a weather event, it would be salt in the wound to have cows breed late and fall out of your calving season....

Keeping cows bred in summer heat

published: July 8th 2019 source: VitaFerm

The summer heat can zap your energy faster than you can rattle off your favorite cow’s pedigree. A typical day of work will make most people tired but add in extreme heat and humidity and sometimes surviving feels like a job in itself....

Enhancing cow fertility

published: June 5th 2019 by: Courtnie Carter source: University of Tennessee

The secret to enhancing fertility in your cow herd is not a new or ground-breaking technology, and it is not difficult to implement. It really is not a secret at all, but it does take commitment to a process, minimal investments of time and labor, and a willingness to potentially take an economic loss now in order to minimize more substantial losses in the future....

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