Efficiency is evaluated in several ways, but its meaning is very simple: “the ability to utilize input energy.” This definition is easy to interpret and relate to when looking at our beef cattle enterprise. We know the input side of the equation has changed significantly. Now we need to do what we can to maximize our input energy. Implanting and Castration There are several decisions to make when it comes to raising calves. One of the biggest questions relates to the use of implants. There is significant pressure from cattle buyer to not use implants. There are a couple of reasons why: 1) If you implant they don't get the big boost in performance that you got and 2) misuse of implants can negatively affect carcass characteristics and beef palatability. While several producers feel Mother Nature provides a 'natural' implant, they may be causing a larger reduction in future performance by waiting until weaning to castrate. Studies have shown that bulls banded at weaning have reduced performance for 29 (SDSU) to 50 (Oklahoma State) days after banding. This loss of efficiency is unaffordable in today's market. Steers that are castrated at branding time (aaprox. 2 mo. old ) and implanted performed at the same level as contemporaries that remained intact until weaning. The other challenge is maintaining beef quality and palatability characteristics while receiving the benefit of the implant. Research has suggested that suckling calves receiving a low potency implant can result in carcasses with no notable differences compared to intact male contemporaries. Healthy calves receiving adequate energy are the most successful in this scenario. Health and Vaccinations The other distinct performance theft is disease. Cattle that are not healthy have reduced dry matter intakes, lower average daily gains, and are more likely of having a negative impact on carcass characteristics. What can you do to decrease the likelihood of your calves getting sick?
- Get calves off to a good start; calves that get up and nurse quickly after calving will be healthier.
- Vaccination for respiratory disease, clostridial, pinkeye, and anthrax before pasture turn out. Visit with your vet for details.
- Vaccinate 2-4 weeks pre-weaning with boosters at weaning.
- Consider fenceline weaning when possible to limit stress.