jpalarchio

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I would like to take a stab at growing hops (probably next year).

I have a small dachshund that will eat about anything regardless of flavor or lack thereof. I've read that hops are terribly poisonous to dogs so I have real concerns about having live plants out in the yard. I've never been able to determine exactly how many hops it would take to cause an issue if ingested so I always make sure to separate my hops in a room that the dog doesn't go in.

I'm assuming that at least some of you are dog owners. Has anyone had to deal with this or am I overly cautious?

bruin_ale

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I have two dogs, but this is my first year growing hops. They don't pay much attention to the plants in the yard, so I'm not all that worried about it. That said, I'm definitely going to keep an eye out and possibly pull any cones off that would be in the dogs' reach. It sounds like it depends on the breed, but it doesn't take much to be lethal.

david_42

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No. This has been beaten to death, but it keeps rising from the grave.

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HenryHill

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I think the biggest downside to dogs and hops is them just running over them or lifting a leg on them.

My dog couldn't care less about hops, fresh whole leaf, or out of the corny or BK.

I think it is an urban legend-false.

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Clonefarmer

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Chicken wire around the base of the bines will keep the dog out. It also protects the sprouts from things like rabbits.

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conpewter

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Hops can be poisonous to a small set of dogs that have a predisposition for it. I have hops and don't plan on doing anything to keep the dog away from the plants themselves. Almost all of the cones grow in the top 1/2 or more of the plant so he won't be able to reach any, they also are very bitter, unlikely to be eaten. I will however pay a bit more attention to the spent hops, I think with the sweet wort on them he might eat them out of the compost pile, will probably fence that area off.

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silvervan83

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My biggest problem with the dog is she keeps pulling the steaks out of the ground and ripping the twine down.

I put up a 3 foot fence to keep her out but she just walks right over it. (4 foot tall saint bernard puppy).

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tac0meat

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One of my dogs keeps eating the leaves of one of my hops. From what I have heard, hops can be poisonous in that they can raise the body temperature of certain breeds of dogs, but it takes a substantial amount for them to reach that point. I think that for most dogs, a couple of cones won't hurt them, but the dogs can sure hurt the plants when they go chewing on them.

greatfookin

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NOT AN URBAN LEGEND!!!!

Hops induced Malignant Hyperthermia in Dogs

1/16/02 - E. Wan

This is a warning that the ingestion of used hops from home brewing can be fatal to dogs. Some breeds have a toxic reaction that triggers the onset of Malignant Hyperthermia (MH), a life threatening condition in which the body uncontrollably overheats. Do not mulch your used hops - seal them in a container and dispose of in the trash!

There have only been a handful of confirmed cases reported - around 9 dogs. Seven of the dogs were Greyhounds, one Labrador Retriever, an unknown breed, and most recently a Golden Retriever. 7 out of the 9 dogs died.

The first symptom to become obvious to an owner is heavy panting. Tachycardia (rapid heart rate) will also be present, up to 200 beats per minute. The temperature may rise as quickly as 2 degrees F every five minutes. Immediately take your dog to a emergency pet hospital. Note, most general veterinarians are not equipped to handle this serious of a condition. Contact the National Animal Poison Control Center (NAPCC) at 800-548-2423. The NAPCC should FAX a copy of a 1997 report on MH in dogs (see references), and provide the recommended treatment. Note that the recommended treatment is currently being updated based on the successful treatment of our Golden Retriever.

The following is a summary of events and treatment for our 6 1/2 year old female Golden Retriever, named Pascale. I am not a veterinarian, so this should be taken only as advise. Again, the NAPCC should be contacted for official help.

Date: 1/12/02
Sometime in the early morning, Pascale ate the spent hops left over from brewing. Only 1-2 oz (dry) were consumed. By 8:00 AM, she was restless and panting heavily. We made the probable diagnosis of MH (based on a Google search on 'hops' and 'dogs'), and took her to her regular veterinarian. On arrival at 9:30 AM, her temperature was at 103.8 (note normal is between 100 and 101). By 10:30 AM, despite a cool bath and IV Valium, her temperature was at 105.2. NAPCC was consulted and we transferred her to an Emergency Pet Hospital, arriving at 12 noon, where the following treatment took place.

Treatment:
Gastric lavage under anesthesia
Enema
Active Charcoal (1 Ml)
Cold Bath
IV Fluids
Injection of Dantrium (Dantrolene) - * See notes below

At 1:00, after anesthesia her temperature was over 108 (the scale only went to 108). The Dantrolene was administered and then over the course of the next 4 hours her temperature gradually returned to normal (I don't have exact times). IV fluids were continued throughout hospitalization. Amoxicillin 800 mg was initiated at 5 PM (and again at 2 AM) due to possible aspiration pneumonia from vomiting post-lavage (and small amount of intestinal bleeding). 100 mg Dantrolene in pill form was given at 10 PM (and again at 10 AM) to avoid possible recurrence of MH. Full panel blood tests were done to check for possible internal damage (normal).

She was discharged from the hospital at 3 PM, 1/13/02. (On a follow-up call with the NAPCC that I had, they felt this was a bit early and that she probably should have been kept an additional 24 hours under observation. On the other hand, it was clear she was able to rest much better at home.) At home she was given 750 mg Amoxicillin twice a day for 7 days and 100 mg Dantrolene twice a day for 1 1/2 days (for a total of 2 1/2 days including the dosages she was given at the hospital). She was fed 1/2 can Hill's I/D every 6 hours for the first 24 hours and then this was blended with her normal food (her appetite was fine). Her temperature was monitored, which stayed stable at around 100.5. 4 days later we took her to a vet for a general check-up and an additional blood serum chemistry. Her spleen seemed slightly enlarged. Liver related chemistry was above normal (ALT=142, ALK=137), but not at a level that would indicate major concern. All other tests were normal. (Her personality and energy also seemed back to normal.)


* Notes on Dantrolene:

Dantrolene sodium is the only known treatment for MH in humans. It "acts directly on skeletal muscle, probably by dissociating the excitation-contraction coupling mechanism as a result of interference of release of calcium from the sarcoplasmic reticulum". This drug can be very difficult to locate, as it seems very few hospitals stock it (I believe due to a short shelf-life and expense of around $300 an injection). The use of Dantrolene was recommended by the NAPCC, but its effects on dogs were unknown prior to the use on Pascale. Previously, all the dogs had died prior to being able to administer the drug.

Links: 1) Dantrolene sodium, 2) Medline - Dantrolene


* Notes on MH in humans:

" Malignant Hyperthermia (MH) is a life threatening, acute pharmacogenetic disorder, developing during or after a general anesthesia. Both a genetic predisposition, and one or more triggering agents are necessary to evoke MH. Triggering agents include all volatile anesthetics (Chloroform, Ether, Halothane, Enflurane, Isoflurane, Sevoflurane, Deflurane) and depolarizing muscle relaxants (Suxamethonium). The classical MH crisis shows a hypermetabolic state, caused primarily by the muscles of the skeletal system. Besides this classical form of MH exist abortive forms with unspecific signs like tachycardia, arrhythmia and a raise in temperature. Modern monitoring, better knowledge of MH by the anaesthetists and the therapy using dantrolene reduces the incidence of the classic MH crisis. Nevertheless, MH is a dangerous disease, and anyone who is involved with anesthesia and anesthetics should have up to date knowledge about diagnosis and therapy of MH."

Links: 1) Malignant Hyperthermia Association, 2) Malignant Hyperthermia - ANESTHESIOLOGY, 3) Malignant Hyperthermia Tutorial


References:

"Malignant hyperthermia-like reaction secondary to ingestion of hops in five dogs", K.L. Duncan, W. Hare, W. Buck, JAVMA, Vol 210, No 1, Jan, 1997. (This is the article that was provided by the NAPCC)

Socrates_the_Dog

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I use an electric fence to keep my dogs out of my garden. One or two touches with the nose is all it takes, and they stay away from the wire from then on. My hops, peppers, tomatoes, and herbs can now grow in peace.