Weak Calf Syndrome

Weak Calf Syndrome Or Bvd Fetal Infection

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Managing the Calf at Calving Time

Perinatal mortality rates are increasing internationally, particularly in Holstein-Friesian primiparae. The prevalence of perinatal mortality in US dairy herds is currently 8%. This article outlines our current knowledge of bovine perinatal pathophysiology and presents practical guidelines on management of the calf at calving time. Biophysical profiling of the newborn calf, without sophisticated equipment, is the first step in diagnosing at-risk perinates.

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Weak Calf Syndrome

Weak calf syndrome presents as a newborn calf that is weak, unable or slow to rise, stand or nurse. These calves often die within three days of birth.

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Heritable Birth Defects In Cattle

Inherited congenital anomalies are probably present in all breeds of cattle and propagated as a result of specific trait selection. In some breeds, the occurrence of inherited anomalies has become frequent, and economically important. Veterinarians, animal scientists, and cattle breeders should be aware of inherited defects, and be prepared to investigate and report animalsexhibiting abnormal phenotypes. This review will describe the morphologic characteristics,

Developmental Anomalies in Farm Animals (II. Defining Etiology)

Anomalous development is a function of the genetic make-up of the fetus and the environment in which it develops. The cause of anomalous development may occasionally be obvious but more often is obscure, because of its multifactorial nature. Therefore a methodological approach is often required to define the etiology. In this paper we describe a methodological approach that first defines the incident, the genotype of the individuals involved, and the environment in which the fetus has developed.

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