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Typical milk fever posture; cow in sternal recumbency with its head tucked into its flank. Milk fever, postparturient hypocalcemia, or parturient paresis is a disease, primarily in dairy cattle [1] but also seen in beef cattle and non-bovine domesticated animals, [2] characterized by reduced blood calcium levels (hypocalcemia).
Congenital contractural arachnodactyly (CA), also known as fawn calf syndrome, is an autosomal recessive genetic disorder in cattle. [1] The disorder affects the connective tissue of muscles, [1] leading to contracture of the upper limb (most obvious in the hind limbs), and laxity of the joints of the lower limbs. [2]
In dairy breeds, the disease may occur in calves between birth and 4 months of age. [12] In rustic breeds or beef cattle, heifers and young steers up to 12 months of age can be affected. In calves, muscles in upper portion of the front legs and the hind legs are degraded, causing the animal to have a stiff gait and it may have difficulty standing.
Cattle breeds fall into two main types, which are regarded as either two closely related species, or two subspecies of one species. Bos indicus (or Bos taurus indicus ) cattle, commonly called zebu, are adapted to hot climates and originated in the tropical parts of the world such as India, Sub-saharan Africa, China, and Southeast Asia.
This is a list of some of the cattle breeds considered in the United States to be wholly or partly of American origin. Some may have complex or obscure histories, so inclusion here does not necessarily imply that a breed is predominantly or exclusively American.
Double-muscled cattle are breeds of cattle that carry one of seven known mutations that limits and reduces the activity of the myostatin protein. Normally, myostatin limits the number of muscle fibers present at birth, and interfering with activity of this protein causes animals to be born with higher numbers of muscle fibers, consequently augmenting muscle growth.
Mineral deficiency is a lack of the dietary minerals, the micronutrients that are needed for an organism's proper health. [1] The cause may be a poor diet , impaired uptake of the minerals that are consumed, or a dysfunction in the organism's use of the mineral after it is absorbed.
It is most common in dairy cattle and can occur in beef cows occasionally with hypocalcaemia. [1] It is not as commonly seen in heifers, but occasionally can be seen in dairy heifers and most commonly Herefords. [citation needed] Uterine prolapse is considered a medical emergency that puts the cow at risk of shock or death by blood loss. [2]