ANS18-10-L25-GATOR-CULT

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

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Discussion – Dec 2 & 3 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 – two species; American & 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 U.S. Fish & Wildlife Service places 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 through tagging & documentation so that products from other crocodilian species that are endangered are not sold illegally as American alligators.
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Industry Louisiana Fish & Game – 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 ouisi an a F lori d a Texa s Georgia Mis s iss i ppi A l a b a ma Number of Farms 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 1 ft, no 90 o degree corners.
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  • Spring '11
  • McHenry
  • American Alligator, Alligator, ft alligator Tail, alligator grow-out facility, commercial alligator feed

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