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GUINEA PIG MANAGEMENT. Cavia porcellus. Origin. Cavia porcellus – domesticated Cavia aperia – wild wild – Peru, Argentina, Brazil, Uruguay also known as Cavies domesticated 16 th century – England. Varieties of Guinea Pigs. Traditional American or English – short hair
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GUINEA PIG MANAGEMENT Cavia porcellus
Origin • Cavia porcellus – domesticated • Cavia aperia – wild • wild – Peru, Argentina, Brazil, Uruguay • also known as Cavies • domesticated 16th century – England
Varieties of Guinea Pigs • Traditional • American or English – short hair • Abyssinian – whorls of short rough hair • Peruvian – long hair
Varieties of Guinea Pigs • New varieties • Silky – medium length soft hair • Teddy – short, coarse hair • American Crested – short hair with contrasting whorl on forehead • Rex – very short, soft hair • Hairless
Basic Guinea Pig • compact stocky body • tailless • diurnal – actually • short naps night and day • sebaceous marking glands - rump • open rooted teeth
Additional characteristics • vocalize – at least 11 sounds • good swimmers • seldom jump • rarely bite or scratch • need frequent handling • lifespan – 5 yr average, ~8 yr max.
Uses of Guinea Pigs • Pets • Scientific research • Food
Home Sweet Home • Temperature: 70, 65 – 79 • Space • < 350 gm 60 sq. in. • > 350 gm 101 sq. in. • max size 1.2 x 3.8 cm mesh or solid
Home Sweet Home • Bedding • wood shavings – not cedar, pine • shredded paper • not dusty • timothy hay overlay optional • clean weekly
Home Sweet Home • Humidity 50%; 40 – 70 • Light cycle 12:12 • Air changes 10 – 15 per hour
Digestive System • Strict herbivores • Hind gut fermenters – cecum • Lactobacilli sp. • primary fatty acid – propionic acid
NUTRITION • require vitamin C • have higher folic acid requirement • sensitive to excess Ca, Vit. A, Vit. D • leads to metastatic calcification • mineralization of soft tissues
Feeding • Additional Requirements • ~ 6 gm feed/100 gm body weight • 18-20 % protein • 10-16 % crude fiber • Use guinea pig feed!!! • NOT RABBIT FEED • no vit. C and high in vit. D
Feeding Management • Messy feeders • Use J-feeders not bowl
Water Management • Glass/clear bottles preferred • Like to play with waterers • will empty water bottle and/or • stop up the opening • check frequently • Change & Clean water bottle daily • Automatic waterers • check daily; acidify water at source • reduces pseudomonas
Water Management • Glass/clear bottles preferred • Like to play with waterers • will empty water bottle and/or • stop up the opening • check frequently • Change & Clean water bottle daily • Automatic waterers • check daily; acidify water at source • reduces pseudomonas
Water Management • Glass/clear bottles preferred • Like to play with waterers • will empty water bottle and/or • stop up the opening • check frequently • Change & Clean water bottle daily • Automatic waterers • check daily; acidify water at source • reduces pseudomonas
REPRODUCTION • age to sexual maturity 68-70 • estrous cycle 15-17 days • gestation 59-72 days
SEXING male: straight slit female: Y-shaped
BREEDING • females pair at 400gm; 2-3 months • males pair at 600 gm; 3-4 months • breed females before 6 months • otherwise pubic symphysis fuses • must relax at parturition
Care of Young • precocial – born • furred, eyes open, teeth erupted • walking within 2 hours • two nipples – inguinal region • can care for four young • litters 3-4 (range 1-6)
Care of Young • milk • 3.9% fat • 8.1% protein • 3.0% lactose
DISEASES • genetic • infectious • environmental • nutritional • others
DISEASES • malocclusion – over growth of teeth • causes • environmental • inadequate opportunity wear down teeth • genetic • teeth do not meet properly • in guinea pigs • lower premolars may be tilted inward • eventually tongue is trapped
INFECTIOUS DISEASES • Bordetella bronchiseptica - pneumonia • do not house with subclinical carriers • rabbits, cats, dogs • other infectious diseases are much less common
OTHER DISEASES • vitamin C deficiency – scurvy • metastatic calcification • mineralization of soft tissues • heat stroke • 85º F+, high humidity, lack of ventilation • barbering • small bald patches
Public Health Risks • minimal • diseases guinea pigs may carry • Bordetella, Salmonella, Yersinia pseudotuberculosis, Streptococcus