Also not to beat a dead horse at this point, but one (or even two) generations of inbreeding doesn't really seem to affect elephants. Is it ideal? No. But is it the worst in the world? Also no.
Case in point is at Ramat Gan, with both their African and Asian elephants. They have produced animals who are by all accounts quite inbred (two half siblings bred together to produce a female calf, that female then bred back to her father to produce 3 male calves), plus many mother/son breedings with the Africans, and father to daughter breedings with their Asians.
Of these inbred animals, the vast majority of them have survived into adulthood and live normal, healthy lives. Some of them are even breeding and producing healthy calves now at other facilities. The oldest ones are in their 20's and 30's now, and show no signs or slowing down or showing any other "defects" associated with inbreeding.
Case in point is at Ramat Gan, with both their African and Asian elephants. They have produced animals who are by all accounts quite inbred (two half siblings bred together to produce a female calf, that female then bred back to her father to produce 3 male calves), plus many mother/son breedings with the Africans, and father to daughter breedings with their Asians.
Of these inbred animals, the vast majority of them have survived into adulthood and live normal, healthy lives. Some of them are even breeding and producing healthy calves now at other facilities. The oldest ones are in their 20's and 30's now, and show no signs or slowing down or showing any other "defects" associated with inbreeding.