Successful semen collection from Capercaillie (Tetrao urogallus L.) kept in an aviary system
Ewa Łukaszewicz , Artur Kowalczyk , Zenon Rzońca
AbstractWe tested the feasibility of obtaining ejaculates from Capercaillie (Tetrao urogallus L.) kept under aviary conditions. A total of nine individuals in their first (n = 4), fifth (n = 3) or sixth (n = 2) reproductive season were raised in floor pens in the absence (1-year old males) or presence (5- and 6-years old males) of contemporary females and attempted to collect semen using the massage technique. Successful ejaculations were more frequently obtained in older (90%) than in young males (50%). The following semen characteristics of ejaculates were observed for young vs. old males: mean volume 25μl vs. 41 μ1; sperm concentration 470 × 106ml-1 vs. 1,133 × 106ml-1; sperm viability (eosin-nigrosin test) 92.7% vs. 94.6%; morphologically normal sperm 66.5% vs. 73.2%. Semen quality, expressed as the Sperm Quality Factor, reached 10.5 in young and 33.8 in older males. These observations confirm the feasibility of performing successful semen collection in captive Capercaillie, a pre-requisite for the development of artificial insemination for the purpose of gene banking and to optimize the reproductive performance in this endangered species. Interestingly, one-year-old Capercaillie can produce semen, although the quantity and quality are lower than in older males.
|Journal series||Ornis Fennica, ISSN 0030-5685, (A 25 pkt)|
|Publication size in sheets||0.5|
|Publication indicators||= 10; = 9; : 2011 = 0.793; : 2011 = 0.667 (2) - 2011=0.816 (5)|
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