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Dee Whittier

Title Summary Date ID Author(s)
A Many Tiered Cattle Marketing System: From a Health Perspective May 8, 2009
Anaplasmosis in Beef Cattle

Anaplasmosis is an infectious disease of cattle caused by several species of the blood parasite Anaplasma. A. marginale is the most common pathogen of cattle.

May 1, 2009 400-465
Beef Cow/Calf Herd Health Program and Calendar

It is widely agreed that prevention rather than treatment is the most economical approach to keeping disease losses low. Treatment of a disease after its onset is not always

May 1, 2009 400-007
Calving Emergencies in Beef Cattle: Identification and Prevention

Calving difficulty, technically called dystocia, is a major cause of death loss in cow-calf herds. CHAPA (Cow-calf Health and Productivity Audit) studies indicate that dystocia is responsible for 33 percent of all calf losses and 15.4 percent of beef cattle breeding losses.

May 1, 2009 400-018
Control of Internal Parasites in Sheep May 1, 2009 410-027
Control, Treatment, and Elimination of Foot Rot from Sheep May 1, 2009 410-028
Current Strategies in Parasite Control in Virginia Beef Cattle

Many advances have been made in the field of livestock parasite control over the past few years. Because parasites decrease production, usually through decreased weight gain, advances in the control of parasites can have a direct economic impact on beef cattle operations.

May 1, 2009 400-802
Estrus Synchronization for Heifers

Developing replacement heifers is the most expensive enterprise in the cow-calf operation. You can increase returns to heifer development if the heifers calve at 24 months of age and calve early in the calving season.

May 1, 2009 400-302
Feeder and Stocker Health and Management Practices

Disease represents a major problem in most feeder and stocker settings. In some instances, outbreaks of disease can result in as much as a 30% death loss. In addition, treatment costs, feed efficiency losses, and the expenditures and labor necessary for treatment, as well as the necessity of culling animals which fail to respond to treatment, make disease loss substantial in many situations.

May 1, 2009 400-006
Foot Rot in Beef Cattle

Foot rot is a common disease of cattle that can cause severe lameness and decreased weight gain. Other common names for the disease are sore foot and foul foot.

May 1, 2009 400-310
GnRH Based Estrus Synchronization Systems for Beef Cows

New systems of synchronizing estrus (heat) in cows for artificial insemination (AI) have been developed using commercially available Gonadotropin Releasing Hormone (GnRH). These systems allow producers to artificially inseminate cows with little or no heat detection. For the first time, producers have a reliable system that results in acceptable pregnancy rates to timed AI.

May 1, 2009 400-013
Goat-Herd Health Calendar

The goal of any goat-herd health program should be to increase efficiency and productivity. Herd health programs should include general husbandry, nutrition, and parasite and vaccination programs. Your emphasis should be on disease prevention rather than treatment. There are three major approaches for disease control:

  1. Keep resistance high.
  2. Avoid exposure.
  3. Recognize and address diseases early.
May 1, 2009 412-501
Health Influence on Calf Prices May 8, 2009
Livestock Update, February 2016 Jan 27, 2016 APSC-120NP
Livestock Update, March 2016 Mar 4, 2016 APSC-121NP
Livestock Update, September 2015 Aug 24, 2015 APSC-112NP
Mid-Summer Calf Working, Especially in Tight Times May 8, 2009
Mycoplasma in Beef Cattle

Mycoplasma is a tiny bacterium that has a long history of causing disease in the cattle industry. Beginning in the early 2000s, it has emerged as an important entity in Virginia.

May 1, 2009 400-304
Mycoplasma in Dairy Cattle

Mycoplasma is a tiny bacterium that can cause mastitis, metritis, pneumonia, drooped ears, and lameness in dairy cattle. While this bacterium has existed for more than 100 years, the current disease was first recognized in the 1960s and 1970s, and has only recently become a problem in Virginia. There has been a steady rise in the frequency and severity of disease associated with Mycoplasma in the last ten years. Mycoplasma is a highly contagious disease that can have devastating economic effects on a dairy farm due to decreased milk production, additional veterinary costs, culling of cows, calf loss, and treatment cost. All dairy animals can be infected, including calves, heifers, dry cows and lactating cows.

May 1, 2009 404-038
Pinkeye in Beef Cattle

Pinkeye, also known as infectious bovine keratoconjunctivitis (IBK), is one of the most common diseases of beef cattle in Virginia. It is a highly contagious disease, causing inflammation of the cornea (the clear outer layer) and conjunctiva (the pink membrane lining the eyelids) of the eye.

May 1, 2009 400-750
Powell River Project - Management of Cow-Calf Production on Reclaimed Surface-Mined Land Feb 12, 2010 460-128
Practices Associated with Profitable Cow-Calf Herds May 8, 2009
Pre-weaning Calves: Decreasing Disease and Increasing Value May 8, 2009
Predicting Bull Fertility

Reproductive efficiency is a major determinant of cow-calf profitability. The bull’s contribution to pregnancy rates is often overlooked.

May 1, 2009 400-009
Recognition and Treatment of Bovine Respiratory Disease Complex

The recognition and treatment of Bovine Respiratory Disease Complex (BRDC) is vital to the economic well-being of the stocker cattle producer. This disease is also known as shipping fever, or simply pneumonia.

May 1, 2009 400-008