Dometic Pet Dogs
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Parturition process
Whelping
How long ago were dogs domesticated?
10,000-12,000 years ago
Dog ancestor
Wolf (Arabian, Chinese, Indian, and European)
Human intervention dog breeding
Specialization Limit or intentionally breed Trait standardization Genetic firewall - minimize traits from wild genes
Who domesticated the Russian Domestic Fox?
Dmitri Belyaev
Russian Silver fox selection
Selected quiet ones for temperament Reverse flight zone (tameness)
Wild vs. Piebald
PET VET Coat Play Ears Teeth Vocalization Estrous Tail Coat
Which dogs have smaller brain capacity and which have larger?
Working dogs with jobs have larger brain capacity Dogs without jobs have smaller brain capacity
1 wolf tunred into how many breeds?
18
Chromosomes
Code for gene
Genes
Specific sequence codes for cell activity or product production
4 nucleic acids bases
Adenine Thymine Guanine Cytosine
What process is used to separate DNA fragments by size?
Gel electrophoresis
Genetic timing
Some genes activated: Sooner For longer Never
How many dogs breeds?
300-500
Dog eye anatomy
Horizontal slit with more rods and cones than humans (better low light and color vision) Tapetum
Dog visual acuity
1-2 diopters
Nearsighted
Myopic
Neutral sight
Emmetropic
Farsighted
Hypertrophic
Frequency
Pitch Measured in hertz
Amplitude
Volume Measured in decibles
Dog pitch hearing range
65-65,000 hertz
Olfactory anatomy
Olfactory bulb 6g Nasal Passages 390 cm Turbinate bones provide more surface area for olfactory nerves