Common Diseases of Farm Animals

The organs that form the digestive tract are the mouth, pharynx, oesophagus, stomach, intestines and the annexed glands, viz.: the salivary, liver, and pancreas. The development...

GENERAL DISCUSSION.--The study of the organs concerned with the reproduction of the species is essential in order to acquire a knowledge of their several functions. It is only t...

The common parasitic diseases of domestic animals are caused by the following groups of worms: _Flukes_ or _trematoides_; _tapeworms_ or _Cestoides_; _thorn-headed worms_ or _Ac...

Parasitic insects are common causes of skin diseases in domestic animals. The diseased conditions of the skin, and the irritation that they may cause the animal, depend on the l...

GENERAL DISCUSSION.--The respiratory apparatus may be divided into two groups of organs, anterior and posterior. The anterior group, the _nostrils, nasal cavities, pharynx, lary...

DEHORNING CATTLE.--It is very often necessary to remove the horns of cattle in order to prevent their injuring or worrying certain individuals in the herd. This operation is of...

GENERAL DISCUSSION.--The foot of the horse as generally spoken of, includes the hoof and the structures that are enclosed by it (Fig. 36). It may be divided into three parts, th...

These infectious diseases are _caused_ by several different species of bacteria that gain entrance to the tissues by way of wounds. The bacteria that cause pyaemia are transferr...

SPRAINS AND INJURIES IN THE REGION OF THE SHOULDER.--Sprains and injuries of the structures in the shoulder region are more common in horses that are called on to do heavy work...

HOG-CHOLERA is a highly infectious disease of swine. It is characterized by an inflammation, of the lymphatic glands, kidneys, intestines, lungs and skin. The inflammation is he...

Inflammation is a pathological condition of a tissue, characterized by altered function, disturbance of circulation, and destructive and constructive changes in the irritated pa...

GENERAL DISCUSSION.--The nervous system may be divided into central and peripheral portions. The _central portion_ comprises the brain or encephalon and the spinal cord. These o...

FRACTURE OF THE ILEUM, "Hipped."--Fracture of the angle and neck of the ileum may be classed among the common fractures in horses and cattle. Fractures involving other parts of...

The importance of recognizing or diagnosing the seat and nature of the morbid change occurring in an organ or group of organs cannot be overestimated. Laymen do not comprehend t...

The kidneys are situated in the superior region of the abdominal cavity (sublumbar) above the peritoneum, and to the right and left of the median line. They are highly vascular...

GENERAL DISCUSSION.--The teeth are the passive organs of digestion. They are hard organs, implanted in the superior and inferior jaws in the form of a long and narrow arch that...

HISTORY.--Tuberculosis is one of the oldest of known diseases of domestic animals and man. Its contagious character was proven by Villemin in 1865, who by experential infection...

STRANGLES. DISTEMPER.--This is an acute infectious disease associated with a catarrhal condition of the air-passages and suppuration of the lymphatic glands in the region of the...

GENERAL DISCUSSION.--The two layers that form the skin are the _epidermis_ and the _derma_. The cells of the outer layer or epidermis are of two kinds. The superficial portion i...

Preventive Treatment.--The subject of preventive medicine becomes more important as our knowledge of the cause of disease advances. A knowledge of feeds, methods of feeding, car...

GENERAL DISCUSSION.--_The eye_ is situated in the orbital cavity, to which it is attached by muscles that rotate it in different directions. The _orbit_ is lined by fibro-fatty...

GENERAL DISCUSSION.--The movements of the different parts of the animal body depend on the union of the bones that form the skeleton (Fig. 28), and mode of insertion of the musc...

The _specific cause_ of fowl cholera is the _Bacillus avisepticus_ (Fig. 123). This microorganism is transmitted to the healthy birds by the feed, or water becoming contaminated...

ACTINOMYCOSIS, "LUMPY JAW."--This is an infectious disease that is characterized by the formation of tumors and abscesses (Fig. 117), and the destruction of the infected tissues...

FRACTURES.--Broken bones or fractures are not uncommon in domestic animals. In the horse, the bones of the leg, forearm, foot, and spine are the most commonly broken. In the dog...

GENERAL DISCUSSION.--Each limb is formed by a column of bones that rest upon one another, forming more or less open angles. The bones of the column meet and form articulations t...

Disease is the general term for any deviation from the normal or healthy condition of the body. The morbid processes that result in either slight or marked modifications of the...

GENERAL DISCUSSION.--The value of a horse depends largely on the condition of the limbs and their ability to do the work for which they are intended. This fact is frequently ove...

GENERAL DISCUSSION.--The circulatory organs are the heart, arteries, veins and lymphatics. The _heart_ is the central organ of the circulatory system (Fig. 23). Its function is...

Parrot-mouth, Lantern-jaw and Scissor-mouth.--The common deformities of the jaw and teeth are the overshot or parrot-mouth, the undershot or lantern-jaw, and the scissor-mouth....

XXVI. HOG-CHOLERA XXVII. TUBERCULOSIS XXVIII. INFECTIOUS DISEASES COMMON TO THE DIFFERENT SPECIES OF DOMESTIC ANIMALS XXIX. INFECTIOUS DISEASES OF THE HORSE XXX. INFECTIOUS DISE...

GENERAL DISCUSSION.--The liver is one of the most important glands of the body, as well as the largest. Because of its physiological influence over the functions of the kidneys,...

IV. DISEASES OF THE DIGESTIVE SYSTEM V. DISEASES OF THE LIVER VI. DISEASES OF THE URINARY ORGANS VII. DISEASES OF THE GENERATIVE ORGANS VIII. DISEASES OF THE RESPIRATORY APPARAT...