Figure 2. By day 16, hair growth had markedly increased in the rats given deer antler extract compared to a control group that did not receive it. White-tailed deer antler growth usually begins during the month of March or April, and by August or early September antler growth has ceased. In fact, cells of the frontal bone begin differentiating into something called the antlerogenic periosteum in the embryonic stage. Deer have no control over the growth of their antlers, instead relying on a synchronization with nature. The Red deer Year : August. For example, during the spring there is more daylight, which triggers an increase in testosterone. Deer … Then the results of a years-long scientific culling study at the ranch started to become available. Let There Be Light. If a deer can consume a diet of at least 16% protein, they can maximize their health, body, bone and antler development. Liveweights, growth rates, and velvet antler measurements were recorded for three cohorts of red deer (Cervus elaphus L.) stags (n = 97) from 3 months to 3 years of age and for one of these cohorts (n = 36) to 5 years of age to provide benchmark data. Some of you have seen a lot of really nice deer harvested by G.R.O clients. Antler Growth in Bucks. I got interested in the subject when the trail camera my son gave me for Christmas recorded one buck’s astonishing antler growth over a four-day period. Antlers are dropped, or cast, and grow back over a period of months while covered in a furry skin called velvet. When growth is complete the velvet is rubbed off and the antler is described as clean. Specifically, growth centers around the changing light across seasons. If a spoke gets “out of whack” the tire wobbles. Fecal samples were collected every month for a period of eighteen months from male sambar deer in different stages of the antler growth cycle, feeding in the wet patana grasslands of the park, and the fecal testosterone level was estimated by radioimmunoassay. … Read More. As you can see his antler size has made a dramatic jump since June 15, and in the next few weeks his antler growth will continue rapidly during the peak growth period of mid-June to mid-July. Antler growth begins by a bud forming on the pedicel. The timing of the peak of IGF1 production is regulated by day length but the key factor influencing the amount of IGF1 production is nutrition. Whereas skeletal bones of red deer grow at 34g/day during the first 18 months, their antlers may grow at 100g/day. How is this possible? Buck at 4 1/2 years old–164 B&C. Shortly thereafter, the antler growing process begins again. The amazing rate of antler growth (updated 24 March 2018) The spectacular rate at which red deer antlers regrow year on year never ceases to amaze and fascinate me. First, the idea that deer antler spray contains a meaningful amount of IGF-1 is completely ridiculous. The following photos illustrate antler growth for 1 buck from 26 March 1999 through 15 September 1999. Deer antler velvet's effects on cell growth and repair have been investigated in several areas. By Charles J. Alsheimer. Most bucks will have 8 to 10 antler points when they reach maturity, but there are often deer that have non-typical antler development which results in more. Purpose of antlers. While the rate of antler growth is affected by nutrition, the actual causative mechanism is not known. Older animals tend to cast and clean their antlers first. What Determines a Buck’s Antler Color? Mississippi’s Lower Coastal Plain contains the lowest quality habitat, while the Delta region features the highest quality habitat. Antlers are some of the fastest-growing bone in the animal kingdom: Deer, moose, elk, and reindeer sprout up to half a meter of new bone growth in a month prior to the mating season. The manufacturers of Soma Spray decided to utilize the properties of this deer antler velvet in their product and came up with a spray known as Soma Spray. Approximately a month later, the second tine (G2) will have begun to form. As a result, a young buck is born with tiny pedicles, hidden under the skin of his forehead. The first step for antler growth is the pedicles, the two sites where antlers connect to the skull. Antler growth bell curves can shift to the right in regions with higher soil quality. For more on the role of nutrition, see the section on The body uses glucosamine to manufacture glycosaminoglycans that are found in cartilage tissue. In my June 6 and June 20 blogs I shared with you a specific buck’s antler growth (150-inch-class buck). … Read More. According to the researchers, the deer antler velvet contains an insulin-like growth factor, also known as IGF1. (As much as 2 inches a DAY!) Donnie Draeger used to believe in culling deer to improve antler genetics. Deer antler velvet may be a natural source of hormones for those seeking aid to muscle growth and development. At the end of the study, the group of rats with the deer antler velvet extract application showed a final hair length of .66cm and the control group only had a length of .22cm. However, the antler growth potential of these deer will vary, as the 3 1/2 year old would score about 150 inches given the chance to reach 5 1/2 years old. A mature stag may well have 12 to 15 branches (called “tines” or “points”) to his antlers; stags are often named according to the number of these points. This was one of the greatest increases in antler growth I’ve witnessed in 40 years of photographing whitetails. From region to region, the span of the bell curve will change positions along the X-axis. This may happen simply due to a lack of easily accessible food sources, it can occur from a deer eating the wrong types of food. Antler Growth. Antlers elongate with a typical S-shape growth curve (Fig. You’d probably find more IGF-1 in a glass of milk. In fact, antler growth is one of the fastest known types of tissue growth in mammals, and a deer’s antlers can grow at a rate of ¼ inch per day. During the Spring and Summer months when bucks are growing antlers, fawns are nursing and does are producing milk, deer crave and need high amounts of protein in their diets to maintain their health and to maximize body and antler growth. Deer Antler Spray and IGF-1. The process of antler growth starts very early in a deer’s life. Over his career as the wildlife biologist at the Comanche Ranch in southwest Texas, he’d spent a lot of time and the ranch’s money on such efforts. The size and formation of antlers vary widely among deer in general. The factor responsible for stimulating antler growth is insulin-like growth factor 1 ('IGF1'). Photo credit: Candiss Ager . IGF-1 doesn’t last very long in water (unless it’s frozen), so how it’s supposed to remain stable after being sat in a bottle for months on end I have no idea. This is documented in the first two photos with this post. The rate of antler growth varies according to conditions, but may be as high as six centimetres (2.5 inches) per day in mature stags living in good conditions. Today’s photo shows what he looked like on July 1. He was now a typical 5X6. What Determines a Buck’s Antler Color? Antler growth depends on an individual deer’s access to quality nutrition, age and genetics. His antlers have a gross score of 122-inches (B&C). Over his career as the wildlife biologist at the Comanche Ranch in southwest Texas, he’d spent a lot of time and the ranch’s money on such efforts. The control group’s hair growth was both shorter and rarer. Health. https://www.texashunterproducts.com/blog/whitetail-deer-antler-growth-process Most deer reach their peak antler development between 4.5 and 7.5 years of age. This factor is responsible for the release of sufficient quantities of growth hormone in the body. Bucks who aren't meeting their nutritional needs may suffer from shorter, less complex antlers. A third factor that affects deer antler growth and development is nutrition. Within a month, the first tine or brow tine will have begun to form or split off. The antler’s growth cycle typically starts in spring when a buck is about age 1. However, it seems likely that the influence of nutrition is mediated by hormones. High-grading bucks on a property, however, will not change the genetics of a deer population. A few weeks ago, I posted an item about how rapidly white-tailed deer antlers can grow during the month of June. That is over 70” of added growth between his 2nd year rack and his 3rd year rack. Donnie Draeger used to believe in culling deer to improve antler genetics. Eat your veggies. From this point on the nutrients that previously went to bone growth can be transferred to antler growth. Antler tissue is the fastest normal growing tissue known to man. A video timelapse of a whitetail buck growing a big set of antlers throughout the summer. 6).In the first month to 6 weeks, the branches of a regenerating antler form (Fig. Where the antler is from a larger species, such as red deer, and is wider than the head of the stick, the traditional approach is to whittle a dowel on the first inch or two of the stick and drill a hole to match in the pith of the antler, creating a simple and surprisingly strong joint. Deer hunters are always fascinated by antlers, but what amazes me most is how some bucks can grow such large racks in a single summer. A few months after the annual fall rut draws to a close a bull no longer needs his antlers. Antler development is controlled by three things: age, nutrition, and genetics. Antler growth is extremely rapid-an adult red deer can produce a pair of antlers weighing approximately 30kg in three months, and involves both endochondral and intramembranous ossification. Male white-tailed deer will often grow "buttons" as fawns. At 3 1/2 this buck was again an 8-pointer, but now he is beginning to show antler potential. Deer require a diet rich in protein, phosphorus, calcium vitamins. Deer antler cycles The five British deer species which carry antlers replace them every year. Minerals work like spokes on the wheel of a bicycle. Instead, the removal of the best bucks merely affects the genetics of the deer that are still on hoof, the standing crop so to speak. Since 2014 I have been fortunate enough to observe and film two particular wild Exmoor stags closely, using a number of wildlife trail cameras that I… Read More. Below is a shed found this past season and the horns from that same buck harvested a few months later. Deer antler terminology. His antlers served to attract and impress cows for his harem, or to fight with his competitors for the breeding rights. Between age three and four the buck’s antler growth went from 122” B&C to slightly more than 164” B&C. Deer antler velvet also contains growth hormones, including Insulin-like growth factor I (IGF-1 or somatomedin C) – a hormone that’s produced in the liver as a response to growth hormone stimulation. However, factors such as date of birth and condition of the mother can affect antler development. Once a buck is born, the pedicle pushes up until it’s visible on the deer’s head when they’re about 4 months old. And an interesting fact: In most cases typical deer antlers begin growing out a buck’s head in a backward motion, then quickly change direction and sweep forward as we commonly know. Then the results of a years-long scientific culling study at the ranch started to become available. While this particular buck is in the Kerr Wildlife Management Area Deer Pen Research Facility, its antler development is representative of whitetails throughout the Texas Hill Country. Good nutrition is therefore required to grow big antlers to the animal's full genetic potential. Figure 3. Calcium, Phosphorus and Magnesium are the three most common minerals in an antler, so when choosing a mineral, make sure you’re using a complete mineral that offers all of the various minerals important for antler growth, like Antler King® Trophy Deer Mineral. Ten animals were randomly selected from each antler stage for the experiment. 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