Table 2.
Characteristics of Breeding Males in the PMDS Pedigree
| ID | BW (lbs) | Total # litters sired | Total # offspring sired | Total sperm (million per ejaculate) | Position of Testes |
|---|---|---|---|---|---|
| Normal males | |||||
| A7 | 18 | 2 | 8 | 366* | 2 s |
| A47 | 20 | 11 | 71 | 350 | 2 s |
| A87 | 35 | 35 | 195 | 416-690 | 2 s |
| PMDS males | |||||
| A8 | 18 | 9 | 52 | 50 | 2 s** |
| A9 | 18 | 5 | 19 | 40-140 | 1 c, 1 s |
| A241 pre pyometra | 30 | 3 | 19 | 226 | 2 s |
| A241 post recovery | 30 | 24 | 159 | 253-640 | 2 s |
| A280 | 32 | 12 | 72 | 145-195 | 2 s |
*
For body weight (BW) 10-34 lbs, after sexual rest, the normal range for total sperm per ejaculate is 400+/-110 million. (Amann RP. 1986. Use of animal models for detecting specific alterations in reproduction. Fund Appl Toxicol 2:13-26.)
**
Unilateral segmental aplasia of epididymis, delayed testis descent into scrotum. s = scrotal testis, c = cryptorchid testis