Post by buxombeefcowdairy on Jul 8, 2008 18:46:16 GMT -5
I agree with Ann, she's looking like she had a rough time but she's not emaciated.
Here is some info about an acute case of BVD, from this website www.cattlenetwork.com/BVD_Content.asp?ContentID=114922
Quote:
An acute infection describes cattle that are exposed to the virus and develop an immune response to the disease. Cattle that become acutely infected may exhibit visible signs of disease. Calves exhibiting signs of illness may show respiratory or gastrointestinal symptoms.
Signs of respiratory disease include fever, nasal discharge, lethargy and mild coughing. Gastrointestinal signs may or may not be present. These signs may include diarrhea, poor appetite and weight loss.
Although some animals come down with outward physical symptoms, many animals may show no outward symptoms. These animals have inapparent infections. Most infections that are studied under experimental conditions develop into the inapparent form. These calves show few outward symptoms even though the infection is occurring inside. The animals may incur a mild fever, a drop in white blood cell count and recover without significant illness being noted. It is important to note that cattle with inapparent disease shed the pathogenic virus during their short infection period. These animals can also experience the immunosuppression that occurs with BVD infection, paving the way for other infections to attack a weakened immune system.
end quote
It didn't sound at all like leptospirosis to me, info here:
www.thecattlesite.com/diseaseinfo/175/leptospirosis
This is Chloe, about a week after a bout with grass tetany. She's too thin here, and shows the stress of the GT episode and its effects on her appetite. It was three weeks before she ate her grain with any kind of relish.
I'm leaning toward BVD (especially since she was recently visiting a new herd) or a foreign body. The BLV hypothesis makes no sense to me, I've never seen a cow come back once she starts going downhill from a tumor, and the tumors are usually on the spine, causing rear leg control problems. Those cows go down, but eat great- no appetite loss.
Here is some info about an acute case of BVD, from this website www.cattlenetwork.com/BVD_Content.asp?ContentID=114922
Quote:
An acute infection describes cattle that are exposed to the virus and develop an immune response to the disease. Cattle that become acutely infected may exhibit visible signs of disease. Calves exhibiting signs of illness may show respiratory or gastrointestinal symptoms.
Signs of respiratory disease include fever, nasal discharge, lethargy and mild coughing. Gastrointestinal signs may or may not be present. These signs may include diarrhea, poor appetite and weight loss.
Although some animals come down with outward physical symptoms, many animals may show no outward symptoms. These animals have inapparent infections. Most infections that are studied under experimental conditions develop into the inapparent form. These calves show few outward symptoms even though the infection is occurring inside. The animals may incur a mild fever, a drop in white blood cell count and recover without significant illness being noted. It is important to note that cattle with inapparent disease shed the pathogenic virus during their short infection period. These animals can also experience the immunosuppression that occurs with BVD infection, paving the way for other infections to attack a weakened immune system.
end quote
It didn't sound at all like leptospirosis to me, info here:
www.thecattlesite.com/diseaseinfo/175/leptospirosis
This is Chloe, about a week after a bout with grass tetany. She's too thin here, and shows the stress of the GT episode and its effects on her appetite. It was three weeks before she ate her grain with any kind of relish.
I'm leaning toward BVD (especially since she was recently visiting a new herd) or a foreign body. The BLV hypothesis makes no sense to me, I've never seen a cow come back once she starts going downhill from a tumor, and the tumors are usually on the spine, causing rear leg control problems. Those cows go down, but eat great- no appetite loss.