ANS18-10-L25-GATOR-CULT

ANS18-10-L25-GATOR-CULT - Discussion Dec 2 3 Meat...

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Meat Laboratory Cole Facility Building "C" 162B Cole C
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el lagarto, Spanish for “the lizard.”
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Crocodiles – ~ 15 species – including American crocodile (endangered) Alligators – Wide U-shaped head – fourth lower tooth resides inside notch in upper jaw – freshwater only Chinese – related caimans – biggest recorded alligator; 1,043 lb ♂, ~ 14 feet in length
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American alligator (Alligator mississippiensis)
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History - 1800 1891 1900 1960’s 1973 1980’s Today Commercial harvest of skins First alligator firm established in Florida Wild harvest = 150,000 hides Most states ban harvest of wild alligators alligators on the “endangered list” Alligator populations rebound States develop sustainable management programs including farming 1 million wild alligators in Florida alone
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“threatened for reasons of similarity in appearance” 1983 - Classification under the Convention on International Trade in Endangered Species (CITES) treaties. Meaning the sale of products must be regulated documentation so that products from other crocodilian species that are endangered are not sold illegally as American alligators.
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Industry Wildlife should pay for itself philosophy Extensive research at Rockerfeller Wildlife Refuge at Grand Chenier, Louisiana 0 20 40 60 80 100 120 140 L o u i s a n F l r d T e x G g M p A b m NumberofFarms geothermal - western U.S. illegal in California
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Optimal and tolerated levels of some water quality variables for the American alligator, Alligator mississipiensis(Masser 1993). - 94 – 99% Humidity of nest - > 29 o C Hatch 65 days - 24 – 33 o C Temp. – development > 34 o C stress < 21 o C no growth 7 – 35 o C 29 – 33 o C Temp. - growth - slightly brackish Salinity Tolerated Level Optimal Level Variable
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Reproduction Sexual maturity – Culture = 3 – 4 years – Wild (Louisiana) = 9 – 10 years – Wild (North Carolina) = 18 – 19 years Egg collection – Special permit regulations – LA, TX, FL ~ 300,000 eggs/yr; value 1.8 million $ hurricane damage to nesting habitat; egg supply – Industry also uses eggs from domestic stock
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Broodstock Culture Pens = ~ 1 ha in size; 6 ft fences, buried
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This note was uploaded on 03/26/2011 for the course ANS 18 taught by Professor Mchenry during the Spring '11 term at UC Davis.

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ANS18-10-L25-GATOR-CULT - Discussion Dec 2 3 Meat...

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