Supplemental Feeding | Buck Manager

Ecological Impacts of Supplemental Feeding of Deer

White-tailed deer habitat consists or food, water, shelter, and also space. Thus, food plots and supplemental feeding only impact the nutritional carrying capacity of a particular piece of property, not the total or actual carrying capacity. Assuming there are both adequate water and cover, supplemental feeding can greatly increase the number of the local deer population. Supplemental feeding has become commonplace in deer management programs across the country, but is it healthy?

One thing to keep in mind is the amount of space and and habitat per deer decreases as the population size increases! More deer in an area means less area for each individual deer. This may not be a problem if the number of deer is below the carrying capacity of the area, but this rarely seems to be the case with white-tailed deer.

One of the arguments used by those in support of supplemental feeding is that it not only enhances the nutrition and resulting health of the deer, but that it could possibly take pressure off of the natural vegetation by decreasing deer browsing. Unfortunately, there is little data to support this and plenty of data to refute it. Continue reading “Ecological Impacts of Supplemental Feeding of Deer”

Habitat Management and Supplemental Feeding Work Together

Managing for proper nutrition in white-tailed deer is important for good body condition, good fawn production and recruitment, and maximum antler growth. Good nutrition can be accomplished by doing three things that involve proper habitat management, supplemental feeding, and the planting of food plots. If you want to kick your deer management program in to high gear, I recommend sound habitat management practices in addition to supplemental feeding through either protein pellets or food plots.

Most everyone is familiar with the benefits of supplemental feeding (high-protein food, often pellets), but it can be expensive and it promotes the urge to artificially maintain excessive numbers of deer. With that said, supplemental feeding is not a bad thing, but it must be combined with other sound deer population management practices. Continue reading “Habitat Management and Supplemental Feeding Work Together”

Supplemental Feeding and Disease Transmission in White-tailed Deer

Feeding and Disease Transmission

Question: A friend and I are considering starting a supplemental feeding program for the white-tailed deer population on his farm where we hunt. Our goal is to, over time produce larger, healthier bucks and does, as well as attract and holding a larger population of high-quality animals for hunting. I have some concern over supplemental feeding and disease transmission within the deer herd.

We are planning to implement food plots as the main approach to this end, but we are also considering supplemental feeding during the winter, when the does are carrying fawns and the bucks are shedding and preparing for the growth of the coming years antlers.

In my research on supplemental feeds, have I found several articles suggesting that supplemental feeding increases the chances of the transmission of diseases like ‘blue tongue’, which is normally associated with deer using the same watering hole as an infected animal.

I have heard of increased infections and deaths caused by “blue tongue” during droughts, when deer populations are concentrated around fewer waters holes, which increases the probability of coming into contact with infected animals.

I know some of the eastern states have done studies which claim this to be the case for supplemental feeding as well, but has have you heard of supplemental feeding causing such problems? Or has anyone seen the direct problems confirming the results that New Hampshire’s and Maine’s Game and fish claim?

They also mentioned the transmission of the “mad cow-like” disease (chronic wasting disease) is possible between deer fed a supplement is likely. Has anyone heard any thing about this?

Response: Feeding Deer & Spreading Disease

Any time animals are concentrated the chances of disease transmission are increased, regardless of the disease or virus in question. Bluetongue is a non-contagious, insect-borne viral disease of both domestic and wild ruminants, which includes white-tailed deer. Although not contagious, deer will be at an increased risk of infection by carrier insects if they frequent the same areas as infected animals.

Bluetongue virus is endemic to the U.S., but it’s more prevalent in specific areas. As such,if you’ve had a history of blue tongue outbreaks in your area, the chances are good it will happen again. Although cattle and wild ruminants serve as reservoirs for the virus, not all animals will die from the virus.

CWD: Feeding and Disease Transmission

Chronic wasting disease (CWD) is a whole other question. Infectious agents of CWD are neither bacteria nor viruses, but are hypothesized to be prions. Prions are infectious proteins without associated nucleic acids. Research has shown that CWD is very contagious, so deer feeding at a concentrated food source WILL become infected.

However, the location of CWD is fairly well known, so you should know if it is in your area, close to your area, or nowhere around. Contact your state wildlife agency or department of natural resources. In Texas, where I’m located, CWD has not been found despite intensive testing by State wildlife officials.

Research has shown that white-tailed deer, mule deer, and elk will become effected if they come in contact with a CWD infected deer, CWD infected dead deer, or if they enter areas where infected deer or infected deer carcasses have been. Despite the fact that CWD is quite contagious, a few deer still seem to be immune.

One thing to keep in mind: Deer are likely to concentrate somewhere – whether it be a water source, food source, bedding area, or travel corridor. Although providing supplemental food will concentrate deer, I suspect that if a disease or virus is present the pathogen will be passed on regardless of whether or not you provide supplemental feed.