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Inilah kelinci purbakala yang fosilnya ditemukan di Spanyol. Besarnya 6 kali dari kelinci pada umumnya. Kelinci ini hidup 3 juta tahun yang lalu. Nama kelinci ini adalah The humungous Nuralagus rex – the “Minorcan king of the hares”
Bentuk tubuhnya yang gemuk diperkirakan karena sedikitnya [redator sehingga mereka tumbuh subur.
Tularemia, sering disebut rabbit fever atau deer fly fever, ini adalah penyakit yang menginfeksi kelinci yang disebabkan Francisella tularensis. Tularemia
dapat dibawa oleh hewan liar dan domestik, seperti burung, lalat, dan kutu.
Kelinci yang terinfeksi akan terlihat bergerak lambat dan sakit. Umumnya terlihat kuning atau bintik-bintik putih di hati atau limpa.
Tularemia bisa menular ke manusia
The line-breeding chart to the left shows a common method of crossing a paternal (buck) and maternal (doe) line. Blue represents the paternal line and red represents the maternal line.
“A” (buck) and “B” (doe) are the two original rabbits the breeder is starting with.
“A” and “B” are bred together, producing the litter “C” (doe) and “D” (buck). The litter has 1/2 of the paternal and 1/2 of th
e maternal lines and is the “F1” generation.
“C” is bred back to her sire “A” which produces the doe “E”. “E” has 3/4 of the paternal and 1/4 of the maternal line. “E” is an “F2” generation litter.
“D” is bred back to his dam “B” which produces the buck “F”. “F” has 3/4 of the maternal line and 1/4 of the paternal line. “F” is an “F2” generation litter.
The doe “E” is bred back to the original sire “A” producing the buck “G” who is 7/8 of the paternal and 1/8 of the maternal line. “G” is an “F3” generation litter.
The buck “F” is bred back to the original dam “B” producing the doe “H” who is 7/8 of the maternal and 1/8 of the paternal line. “G” is an “F3” generation litter.
At this point in the breeding program, the 7/8 “F3” generations can be crossed to each. The buck “G” will be bred to the doe “H” producing the “F4” generation litter “I” which contains 1/2 of the paternal and 1/2 of the maternal line.
“J” is a new buck that will now be introduced by breeding to the doe “I” producing litter “K” which has 1/2 of the new paternal line, 1/4 of the original paternal line and 1/4 of the original maternal line. Litter “K” can now be bred to “G” and “H” beginning the process over again now using “G” and “H” to breed subsequent offspring back to.
If a trio was used to start the original herd, two separate lines can be started with each original doe, and the two lines crossed when reaching the “F3” generation.