Educational Articles

Reproductive Care

  • Infertility in a male dog is defined as the inability to produce a successful pregnancy in a fertile female, even with multiple breedings near the time of ovulation. The causes of infertility fall under three broad categories: failure to copulate or ejaculate, poor semen quality, and prostatic disease. This handout explains the possible causes in detail, as well as methods to diagnose and treat them.

  • Lysosomal storage diseases are a rare collection of conditions that are inherited. Many of them are more prevalent in certain breeds and are seen in the first few months of life. Clinical signs vary depending on the type of disease, but commonly include failure to thrive, incoordination, vision loss, and seizure. Prognosis is usually poor for long-term survival.

  • Mastitis is a term used to describe inflammation of a mammary gland (breast), most frequently seen in the postpartum period after a cat gives birth. In most cases, mastitis is caused by a bacterial infection. Trauma to the nipple or teat canal can allow bacteria to enter, traveling up into the mammary gland and creating a bacterial infection. Most cats with mastitis can be treated on an outpatient basis with oral antibiotics and pain medications, though severe cases may require hospitalization or surgery.

  • Mastitis is a term used to describe inflammation of a mammary gland. In most cases, mastitis is caused by a bacterial infection. Trauma to the mammary gland, or prolonged periods of milk accumulation without milk removal, can lead to inflammation within the mammary gland. Most dogs with mastitis can be treated on an outpatient basis with oral antibiotics and pain medications, though severe cases may require hospitalization or surgery.

  • Miscarriage refers to the death of a fetus during pregnancy, with the most common cause being infection. It may also be caused by hormonal shifts or abnormalities. In many cases, there are no visible signs of miscarriage. If miscarriage is suspected, ultrasound is used to assess the pregnancy and determine whether the fetuses are alive. Finding a cause for the miscarriage, especially if that cause is a treatable condition, may improve outcomes in future pregnancies.

  • Miscarriage refers to the death of a fetus during pregnancy, with the most common cause being bacterial infection. Hormonal shifts or abnormalities may also cause miscarriages. In many cases, there are no visible signs of miscarriage. If miscarriage is suspected, ultrasound is used to assess the pregnancy and determine whether the fetuses are alive. Finding a cause for the miscarriage, especially if that cause is a treatable condition, may improve outcomes in future pregnancies.

  • Many herding breeds (most commonly Collies and Australian Shepherds) have a mutation at the MDR1 gene that makes them more sensitive to the negative effects of certain medications. These drugs include several antiparasitic agents (when given at high doses), the antidiarrheal agent loperamide (Imodium®), and several anticancer drugs. The effects of the mutation vary in severity, depending on whether the dog carries one or two copies of the mutation. There is a cheek swab or a commercially-available test that assesses blood samples for the presence of the MDR1 mutation.

  • Polycystic Kidney Disease (PKD) is an inherited condition that causes multiple cysts (fluid pockets) in the kidneys. Persian cats and breeds with Persian bloodlines are most commonly affected. The clinical signs, diagnosis, genetic testing, and treatment options are explained in this handout.

  • Full term pregnancy in cats is usually between 63 and 65 days during which time energy requirements increase to 1.5 times normal. Labor takes place in 3 stages: 1) nesting behavior and comfort seeking are seen, and the cat may stop eating within 24 hours of birth; 2) active stage of labor where contractions may be seen, and kittens are produced. Kittens are usually born within 1 hour of each other; however, there is cause for concern if active unproductive straining is seen for more than 20 minutes; and 3) fetal membranes are passed after the delivery of each kitten. If a kitten is not responsive, attempts can be made to suction the back of its mouth to remove as many fluids as possible while vigorously rubbing their body to stimulate respiration and applying gentle puffs of air into its mouth. Kittens need to be kept warm after birth and the mother should be watched carefully for any signs of illness.

  • Although uncommon, cats and dogs are at risk for several diseases during the two months of their pregnancy. Pre-eclampsia occurs if the mothers cannot keep up with the demand for calcium to produce bones and milk. Gestational diabetes can occur due to high concentrations of hormones and result in increased drinking, urination, inappropriate weight loss and lethargy. Mastitis is a bacterial infection of one or more mammary glands that is contracted either through the blood (sepsis) or from the external environment from unsanitary conditions and/or injury from babies’ teeth or nails. Retained placentas can occur and will result in lethargy, pyrexia and abnormal vulvar discharge. Be aware of the signs, symptoms and management for all four conditions.