GMN
Well-known member
Has anyone heard of a disease that horse flies are spreading to cattle this year? I'm not sure what it is, but evidently it can be fatal to cattle?
GMN
GMN
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
horse flies?
- Thread starter GMN
- Start date
Help Support CattleToday:
Have not heard of it being an issue, but apparently it can be. Maybe this is what you are referring to?
High Horse Fly Populations Related to Sporadic Outbreaks of Anaplasmosis in Cattle
Anaplasmosis is a blood disease in cattle caused by an organism that destroys red
blood cells resulting in severe and profound anemia which often results in death of mature
cattle. Anaplasmosis is transmitted from an infected or carrier animal by anything that can
transmit blood from the infected animal to susceptible animals. Anaplasmosis is more easily
transmitted from animals showing clinical signs of the disease to susceptible animals
than from anaplasmosis carrier animals. The usual incubation period for anaplasmosis is
21 to 28 days. During the first 21 days the red blood cells of the cow are being infected and
destroyed while the animal is able to make new red blood cells as fast as they are being destroyed.
However, after a 3 or 4 week period the anaplasmosis organism multiplies faster
than the cow can produce red blood cells. At this point the cow becomes profoundly anemic
and often will die because she does not have enough red blood cells to carry oxygen
to the body tissues. Clinical signs of the disease are not seen until about 50% of the red
blood cells are destroyed. Early clinical signs are drooping ears, lost of weight, lying down
separately from the herd, weakness and cattle may be found in a pond standing in the
water too weak to get out of the pond. After 50% of the red blood cells are destroyed the
organism multiples rapidly and destroys another 40 to 60% of the remaining red blood cells
often causing death of the cow. If the disease is caught early and treated at the beginning
of clinical signs, cattle usually respond rather quickly and recover from the disease. Cows
showing clinical signs of anaplasmosis will have very dark yellow urine. Additionally, when
the eyelid is pulled back or other mucous membrane is exposed the tissue will be white or
very pale when compared to the pink or reddish color found when the eyelid or other mucous
membrane is exposed on disease free cattle. This is often referred to as jaundice.
Calves are able to generate red blood cells much faster than mature cattle and when
infected with anaplasmosis rarely show clinical signs of an infection. They are able to build
immunity and overcome the disease, however, they are usually carriers for life and the disease
may be transmitted from them to other cattle.
ALABAMA A&M AND AUBURN UNIVERSITIES, AND TUSKEGEE UNIVERSITY, COUNTY GOVERNING BODIES AND USDA COOPERATING
High Horse Fly Populations Related to Sporadic Outbreaks of Anaplasmosis in Cattle
Anaplasmosis is a blood disease in cattle caused by an organism that destroys red
blood cells resulting in severe and profound anemia which often results in death of mature
cattle. Anaplasmosis is transmitted from an infected or carrier animal by anything that can
transmit blood from the infected animal to susceptible animals. Anaplasmosis is more easily
transmitted from animals showing clinical signs of the disease to susceptible animals
than from anaplasmosis carrier animals. The usual incubation period for anaplasmosis is
21 to 28 days. During the first 21 days the red blood cells of the cow are being infected and
destroyed while the animal is able to make new red blood cells as fast as they are being destroyed.
However, after a 3 or 4 week period the anaplasmosis organism multiplies faster
than the cow can produce red blood cells. At this point the cow becomes profoundly anemic
and often will die because she does not have enough red blood cells to carry oxygen
to the body tissues. Clinical signs of the disease are not seen until about 50% of the red
blood cells are destroyed. Early clinical signs are drooping ears, lost of weight, lying down
separately from the herd, weakness and cattle may be found in a pond standing in the
water too weak to get out of the pond. After 50% of the red blood cells are destroyed the
organism multiples rapidly and destroys another 40 to 60% of the remaining red blood cells
often causing death of the cow. If the disease is caught early and treated at the beginning
of clinical signs, cattle usually respond rather quickly and recover from the disease. Cows
showing clinical signs of anaplasmosis will have very dark yellow urine. Additionally, when
the eyelid is pulled back or other mucous membrane is exposed the tissue will be white or
very pale when compared to the pink or reddish color found when the eyelid or other mucous
membrane is exposed on disease free cattle. This is often referred to as jaundice.
Calves are able to generate red blood cells much faster than mature cattle and when
infected with anaplasmosis rarely show clinical signs of an infection. They are able to build
immunity and overcome the disease, however, they are usually carriers for life and the disease
may be transmitted from them to other cattle.
ALABAMA A&M AND AUBURN UNIVERSITIES, AND TUSKEGEE UNIVERSITY, COUNTY GOVERNING BODIES AND USDA COOPERATING
GMN
Well-known member
angie":3fsfx8zh said:Have not heard of it being an issue, but apparently it can be. Maybe this is what you are referring to?
High Horse Fly Populations Related to Sporadic Outbreaks of Anaplasmosis in Cattle
Anaplasmosis is a blood disease in cattle caused by an organism that destroys red
blood cells resulting in severe and profound anemia which often results in death of mature
cattle. Anaplasmosis is transmitted from an infected or carrier animal by anything that can
transmit blood from the infected animal to susceptible animals. Anaplasmosis is more easily
transmitted from animals showing clinical signs of the disease to susceptible animals
than from anaplasmosis carrier animals. The usual incubation period for anaplasmosis is
21 to 28 days. During the first 21 days the red blood cells of the cow are being infected and
destroyed while the animal is able to make new red blood cells as fast as they are being destroyed.
However, after a 3 or 4 week period the anaplasmosis organism multiplies faster
than the cow can produce red blood cells. At this point the cow becomes profoundly anemic
and often will die because she does not have enough red blood cells to carry oxygen
to the body tissues. Clinical signs of the disease are not seen until about 50% of the red
blood cells are destroyed. Early clinical signs are drooping ears, lost of weight, lying down
separately from the herd, weakness and cattle may be found in a pond standing in the
water too weak to get out of the pond. After 50% of the red blood cells are destroyed the
organism multiples rapidly and destroys another 40 to 60% of the remaining red blood cells
often causing death of the cow. If the disease is caught early and treated at the beginning
of clinical signs, cattle usually respond rather quickly and recover from the disease. Cows
showing clinical signs of anaplasmosis will have very dark yellow urine. Additionally, when
the eyelid is pulled back or other mucous membrane is exposed the tissue will be white or
very pale when compared to the pink or reddish color found when the eyelid or other mucous
membrane is exposed on disease free cattle. This is often referred to as jaundice.
Calves are able to generate red blood cells much faster than mature cattle and when
infected with anaplasmosis rarely show clinical signs of an infection. They are able to build
immunity and overcome the disease, however, they are usually carriers for life and the disease
may be transmitted from them to other cattle.
ALABAMA A&M AND AUBURN UNIVERSITIES, AND TUSKEGEE UNIVERSITY, COUNTY GOVERNING BODIES AND USDA COOPERATING
That guy that lost that heifer thought maybe this was it too, but I think the other pneumonia makes more sense with the symptoms his heifer had before it died.
GMN
