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Pathophysiology of Neonatal Calf Diarrhea
Veterinary Clinics of North America: Food Animal Practice, 1985Neonatal calf diarrhea caused by bacterial enterotoxins, bacterial or parasitic-induced inflammation, or virus-induced villous atrophy leads to intestinal hypersecretion, malabsorption, or both. Mechanisms of secretion and malabsorption differ depending on the agent, suggesting that different modes of treatment must be employed to be effective ...
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Trichoepithelioma in a neonatal calf
Comparative Clinical Pathology, 2014A 5-day-old male Holstein calf was presented with a proliferative mass under the right eye. A solid multilobulated gray lesion (5 cm × 3 cm) was removed surgically. Histopathological findings were characterized by multiple nests of cells, resembled abortive hair follicles. A diagnosis of trichoepithelioma was made.
Ahmad Reza Movassaghi +2 more
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Rhabdomyosarcoma of the tongue in a neonatal calf
Journal of Comparative PathologyA newborn male Holstein calf developed a nodular enlargement at the tip of the tongue. Histopathological examination of the mass revealed predominant proliferating small, round, spindloid or polygonal neoplastic cells with scattered myoblast- and myotube-like cells and multinuclear giant cells.
Sohta, Hishikawa +4 more
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Death in Neonatal Calf Diarrhoea
British Veterinary Journal, 1965SUMMARY In experiments comparing dying and surviving diarrhoeic calves it was found that when the milk intake was maintained during diarrhoea death was associated with significant rises in plasma potassium and blood urea and significant falls in plasma pH and bicarbonate.
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Bovine Viral Diarrhea in the Neonatal Calf
Journal of the American Veterinary Medical Association, 1974SUMMARY Bovine viral diarrhea (bvd) virus has been implicated in neonatal calf enteritis. Calves may become infected in utero or postnatally. In utero infection may terminate in abortion, cerebellar hypoplasia, birth of a weak calf, or clinically inapparent infection. Clinical signs in neonatal calves may include fever, leukopenia, nasal discharge, and
G, Lambert +2 more
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The Bovine Practitioner, 1997
An investigation of a calf disease problem on a dairy should follow certain consistent, repeatable steps. Whether you are the attending or consulting veterinarian, it behooves you to compile baseline information so you know the purpose of the calf raising operation (replacement heifers, veal, dairy beef).
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An investigation of a calf disease problem on a dairy should follow certain consistent, repeatable steps. Whether you are the attending or consulting veterinarian, it behooves you to compile baseline information so you know the purpose of the calf raising operation (replacement heifers, veal, dairy beef).
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The Importance of Colostrum to the Health of the Neonatal Calf
Veterinary Clinics of North America: Food Animal Practice, 1994Colostrum feeding is the means by which newborn calves acquire passive immunity to infectious agents. The ability of the newborn calf to absorb colostral antibodies is limited to the first few hours of life. In most cases, natural suckling from the dam is the best method for beef-breed calves to obtain optimum passive immune protection, but in some ...
T E, Besser, C C, Gay
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Absorption of Colostral Immunoglobulins by the Neonatal Calf
British Veterinary Journal, 1978SUMMARY The time course of the appearance of immunoglobulin classes G, M and A were measured in the plasma of suckled newborn calves. Under natural conditions considerable amounts of immunoglobulin had appeared by 3 h after suckling. At least 5 h were required for half maximal saturation levels to be achieved.
E F, Logan +4 more
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American Association of Bovine Practitioners Conference Proceedings, 1983
Perinatal and neonatal calf mortality account for the second greatest loss to the beef cattle industry; the first being open or late calving cows. Large surveys have shown perinatal deaths to range from 4 to 7 percent and neonatal deaths to range from 2 to 6 percent. 18 27 Certain herds and areas have mortality rates much higher in epizootic situations.
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Perinatal and neonatal calf mortality account for the second greatest loss to the beef cattle industry; the first being open or late calving cows. Large surveys have shown perinatal deaths to range from 4 to 7 percent and neonatal deaths to range from 2 to 6 percent. 18 27 Certain herds and areas have mortality rates much higher in epizootic situations.
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Neonatal respiratory distress syndrome in the calf
Veterinary Record, 1984Thirty-five calves were delivered by caesarean section near to term. During the operation amniotic fluid was collected for determination of the lecithin/sphingomyelin (L/S) ratio. Clinical examination of the calves and analysis of blood gas concentration (venous blood) were carried out within the first hour of life.
U J, Eigenmann +3 more
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