Ok,
The "blue" she is referring to isn't on the copied and pasted portion below. If a moderator care edit the piece, it looks reasonably easy to distinguish between her responses and Charlie's. Some good information none the less, but I will still not settle for the "stay away" approach in the future. The reason I own pack goats is for going into the backcountry. Someday I will draw a sheep tag and I plan on using them. This isn't acceptable to me. I hope we can work together and end the bans, and prevent new ones from occuring.
Thanks
Doug
Hi Doug â€" I’ve tried to respond to some of the writing below (in blue) so let me know if any of my responses need further clarification. As far as testing clean goes, there isn’t anything wrong with testing animals to get some idea of what bacteria they’re carrying, but its not foolproof. As I mention below, if you detect a particular bacteria, you know without doubt that it is present in the sample. If you do not find a bacteria, that doesn’t guarantee that the animal is not carrying it. You could just not get a good sample with your swab, the bacteria could die during storage and shipping to the lab, there is potential for human error in the lab, and some bacteria are just hard to grow in a lab. When we collect samples from bhs herds during capture, we sample a lot of animals, and always assume we’re not finding every bacteria in every animal. By sampling a large number of animals, we can have a bit more certainty that if a bacteria is present in the herd, we’ll pick it up at least in some of the samples, but not all.
Scientists are working right now on a vaccine for domestic sheep that they hope will show some promise in protecting bhs from certain pneumonias, but it will be a while before we know whether that is going to work out. I honestly don’t know whether it will also be tested in goats. There are also scientists still working on a vaccine for bhs directly, but its probably years from being a real option. Vaccines that have been used for bhs in the past haven’t really been very effective.
Because some domestic sheep can carry bacteria that may be harmful to bhs as a normal part of the flora of their upper respiratory tract, they don’t necessarily get sick. (There are some strains of these bacteria that can make domestic livestock sick, which is why these vaccines exist). There are vaccines for some pasteurella/mannheimia organisms, but in many cases they aren’t necessarily going to keep a domestic sheep from carrying the specific biotype of that bacteria that can make bhs sick. Also, if the domestic sheep is already a carrier, the vaccination isn’t going to get rid of the bacteria they are carrying. I’m not super familiar with the domestic sheep pneumonia vaccines, but some vaccines don’t necessarily prevent the from carrying a bacteria, but does prevent them from developing the disease caused by that bacteria (sometimes you’ll see wording on the label that says something like “for the prevention of pneumonia due to x bacteria†not necessarily “to prevent infection with x bacteriaâ€.
Unfortunately there really hasn’t been a lot of work done with goats and bhs. We do know that they can at least carry some of these bacteria that are capable of making bhs sick, so the safest option for the bhs is to maintain separation.
Jennifer M. Ramsey D.V.M., M.P.V.M.
Wildlife Veterinarian
Montana Fish, Wildlife & Parks
Office: (406) 994-5671
Mobile: (406) 581-3691
From: Doug Krings [mailto:
[email protected]]
Sent: Thursday, March 08, 2012 10:09 AM
To: Ramsey, Jennifer
Subject: Pack goats in MT/AK
Jennifer,
I recieved this as a response on a forum discussing the possible solutions to pack goats and BHS/DS/SS/DBS habitat. Please let me know if it has any merit.
"I need to chime in on this.
Regarding the Hells Canyon Die-off, I will quote from a Journal of Wildlife Disease paper, which is peer -reviewed. "Sharing of Pasturella spp. Between Free Ranging Bighorn Sheep and Feral Goats". On p. 898, it states that a feral goat was found with a Bighorn Ram and a Ewe. The ram and goat were clinically healthy, but the ewe showed signs of respiratory disease. This causes me to wonder..if goats are as dangerous as domestic sheep (studies have not faired well with domestic sheep and bighorn sheep), then WHY was the Bighorn Ram clinically healthy?
It’s hard to say for sure Doug, but there are a few different possibilities. Just as when different humans are exposed to a sick individual and some get sick and some don’t, different animals may have different levels of resistance, which may affect their ability to fend off pathogens. This could be affected by a lot of things like stress, nutrition, age, etc. They killed all three animals, and isolated P. haemolytica (now called M. haemolytica) from the goat and the ewe but not the ram. Another thing to keep in mind with bacterial culture is that if you don’t get it to grow, that doesn’t guarantee it’s not there. There are many factors that can cause failure of a lab to isolate a bacteria….from sampling technique, to sample storage, to human error at the lab and so on. If you isolate a bacteria from a sample, then you know without doubt that it was present in the sample. If you fail to isolate the bacteria, either it wasn’t present, or for some reason it was there and you were unable to isolate it. So, the ram could have in fact not been infected with P haemolytica and perhaps it hadn’t been long enough for him to actually have symptoms, or there could have been a failure to detect it. Why one sheep is infected and another in a group is not is something that is really hard to know. It’s stated in this paper that although they can document sharing of bacteria between bhs and the goats, it is impossible to prove the direction of the transmission. To do that they would have had to know what bacteria these animals were carrying prior to the their comingling.
Same page - 20 bighorn sheep were found 30 km away that were either sick or dead. (more on this in a minute).
On p. 901 of the same document, it says,"...because both the biovariant 1 (Pasturella Haemolytica) and ToxA + organisms were limited TO THE THREE ANIMALS shot on 29 November 1995 and were NOT isolated from ANY of the other bighorn sheep in groups A and B, there is NO evidence that those organisms were associated with subsequent disease or deaths." This is factual information. I do believe that there has been fiction mixed with facts in order to condemn goats, by certain biologists with an agenda.
I think you have to be careful not to take more from this Hells Canyon paper than what is really there. I think really the aim of the paper was to make the point that goats are capable of carrying these same bacteria that may cause disease in BHS. I think they were pretty careful to not say that these sheep got the bacteria from the goats….they don’t have what they need to do that. So, the fact that the biovariant 1 and ToxA + organisms were only isolated from the 3 animals they shot initially is an interesting point, but doesn’t falsify the statement that goats are capable of carrying these organisms. They didn’t go on to say that the goats were the source of pathogens that caused pneumonia in all these sheep.
So here is what I read...you own a pistol. You live in Great Falls, MT. A guy dies of a shotgun blast in Billings, MT but I am blaming you because you own a gun. Make sense?
NAPgA agrees with strict management of packgoats. But banning them from the forest makes as much sense as banning guns in order to eliminate murders in a particular State.
There is only one study I know of where domestic goats are commingled with Bighorn Sheep in a controlled environment. It is a study by Dr. Wm Foreyt in 1994. Domestic Goats were pastured with Bighorn Sheep for a period of time, and at the end of the study BOTH GOATS AND BIGHORN SHEEP WERE HEALTHY.
This is somewhat true…Dr. Foreyt did do this study, and the bhs survived their exposure to the domestic goats. However, in the management recommendations section of his paper, he says that the study with domestic goats didn’t result in disease in bhs, but he didn’t go so far as to say that bhs contact with domestic goats does not result in respiratory disease. In fact, he suggests the same type of study “needs to be conducted using domestic goats that are carrying P. haemolytica biotype A to determine the effects of those organisms on the health of bhsâ€. This type of P haemolytica, which is thought to be the worst one for bhs, was not detected in any goats at the end of the study….so, there is the possibility that these goats simply weren’t carriers of this potential pathogen, so the bhs didn’t get sick. If they did the study with goats known to be carrying this bacteria, there is a possibility that there would have been a different outcome. We know that domestic sheep and goats (from the Hell’s Canyon paper) can carry some of these bacteria without getting sick.
All of the scientists that I have spoken with on this subject over the phone have told me that there is insufficient data to say that goats are bighorn sheep killers. There is no peer reviewed scientific evidence "out there".
Banning is not the answer. Banning will not keep the "rogue" goat packers out. NAPgA does suggest management and education for the goat packing community.
Yes, this is a very serious issue. Frankly, if I am traveling through Bighorn Sheep habitat with my goats, I would do it quickly, I would have a GPS collar on my goats, I would only pack one or two goats maximum and travel light, and I would highline my goats. And if I see any bighorn sheep, I would do my darndest to scare them away.
NAPgA could use the help on fighting these closures by helping us fund our legal fees. We need help in a big way, financially. We have hired the best attorney that we could find, but that comes at a price.
Charlie Jennings, Land Use Chairman
NAPgA"