National Institute for Discovery Science

SUMMARY REPORT

Results of a Survey Among Bovine Practitioners Concerning Animal Mutilation

In an effort to establish the incidence rate of reported animal mutilations throughout the U.S. and the involvement of veterinary practitioners in elucidating such cases, the National Institute for Discovery Science recently conducted a survey among bovine practitioners. A total of 3,849 letters accompanied by corresponding questionnaires were sent to bovine practitioners in 50 states. One hundred and eighty nine questionnaires, representing 4.91% were returned. The response rate was unexpectedly low. This suggests that little attention is paid by veterinary practitioners to this subject overall. Their attitude could be explained by a variety of reasons, such as:

  • Ranchers are reluctant to report the death of their animals and do not ask for veterinary assistance, mainly because they do not want to spend any money for establishing the cause of death. Once the animal is lost, the owner does not want to pay for the cost of necropsy or laboratory analysis.

  • Carcasses are sometimes discovered long after death so decomposition is in an advanced stage. Thus, the gross pathology changes cannot be properly interpreted and a necropsy is, consequently, not performed. Especially in summer, when the animals are on pastures, often far away from corals or the owner’s residence, the death of the animals is noticed days or even weeks later. High temperatures cause quick post-mortem alteration, which hinders proper examination and lesion interpretation.

  • Most veterinarians are reluctant to get involved in such cases because of publicity around them and the potential impact on their reputation.

Table 1 reflects the numbers of letters sent to bovine practitioners and their responses by states:

No. State Number of
Letters Sent
Answers
Received
Number of
Mutilations Reported
1. AL 33 0 0
2. AK 1 0 0
3. AR 20 1 0
4. AZ 23 6 18
5. CA 176 10 5
6. CO 86 1 0
7. CT 17 1 1
8. DE 3 0 0
9. FL 47 3 0
10. GA 43 2 0
11. HI 3 1 0
12. IA 207 16 4
13. ID 47 1 0
14. IL 132 8 1
15. IN 95 4 0
16. KS 141 11 10
17. KY 122 1 1
18. LA 16 0 0
19. MA 8 1 0
20. MD 30 2 0
21. ME 19 0 0
22. MI 118 1 0
23. MN 211 7 1
24. MO 128 7 2
25. MS 25 1 0
26. MT 105 3 2
27. NC 49 3 1
28. ND 30 2 0
29. NE 139 4 1
30. NH 11 0 0
31. NJ 19 0 0
32. NM 20 2 0
33. NV 11 0 0
34. NY 197 10 0
35. OH 149 11 1
36. OK 82 4 1
37. OR 46 5 0
38. PA 92 8 1
39. PR 5 0 0
40. SC 12 0 0
41. SD 131 6 11
42. TN 57 5 0
43. TX 145 8 28
44. UT 21 2 1
45. VA 69 4 0
46. VT 32 2 0
47. WA 82 3 0
48. WI 474 2 3
49. WV 14 0 0
50. WY 11 0 0
T o t a l 3,849 189 92

The following map suggests the distribution of reported cases by states:

Figure 1 — Animal Mutilation Incidence in the U.S.

Mutilation Map

From the 92 reported mutilations, only in 11 cases (11.95%) necropsy was performed and qualified interpretation of pathologic findings was done. This speaks for little involvement of veterinarians in elucidating the causes of the animal mutilation phenomenon.

Laboratory examinations were performed in even fewer cases: 7 (7.60%). This may be due to similar financial considerations as mentioned above.

Official investigations were conducted in 28 cases (30.43%). This means that even when mutilations were reported, the authorities were involved in less than a third of them. As acknowledged by some field investigators, in many situations the investigation itself is rather superficial, because of lack of specific knowledge in connection with the animal mutilation phenomenon.

According to the reported mutilation cases body parts were missing as follows:

Lower jaw muscles 21 22.82%
Tongue 39 42.39%
Eye 54 58.69%
Ear 13 14.13%
Teats 45 48.91%
Udder 48 52.17%
Vulva/vagina 70 76.08%
Rectum 70 76.08%
Penis/testicles 8 8.69%
Lips 6 6.52%
Tail 1 1.08%
Other organs 4 4.34%

Surgical precision in cutting tissues was reported in 4 cases (4.34%). Missing animals was reported in 5 cases (5.43%).

The following graph reflects the above presented data:

Figure 2 — Animal Mutilation Pattern

Mutilation Graph