Length Of Breeding Season Does Matter

A research analysis of 394 ranch observations from the Texas, Oklahoma, New Mexico SPA (standardized performance analysis) data set provided insight into the age old argument about "leaving the bull out" or having a defined breeding season. Oklahoma State University and Texas A&M Agricultural Economists published the findings of this research in 2005. (Parker, et al. 2005. Journal of Agriculture and Applied Economics. Vol. 37; August issue). They found a positive relationship between number of days of the breeding season and the production cost per hundredweight of calf weaned. Also they reported a negative relationship between number of days of the breeding season and pounds of calf weaned per cow per year. The data suggested that for each day the breeding season was lengthened, the annual cost of producing a hundred pounds of weaned calf increased by 4.7 cents and pounds of calf weaned per cow per year decreased by 0.158 pounds.

The range of breeding seasons in the data set was from extremely short (less than one month) to 365 days or continuous presence of the bull. The trend lines that resulted from the analysis of the data give us an opportunity to evaluate the economic importance of a defined breeding season. The producer that leaves the bull out year-round (365 days) would sell 45.82 fewer pounds of calf per cow per year on the average than producers with a 75 day breeding season. That same producer would have $13.63 greater costs per hundredweight of weaned calf than the producer that used a 75 day breeding season. Length of the breeding season does matter.

Source: Glenn Selk, Oklahoma State University Extension Cattle Reproduction Specialist

1. Feeder cattle review: Choice beef prices keep rolling higher
2. Ag markets diverge just before the long holiday weekend
3. Armyworms eat fescue pastures, hayfields
4. Commentary: New rules un-COOL
5. Oil edges up on book squaring, but posts big weekly drop
6. Cattle theft and brands

1. Former Eastern Livestock CEO, CFO sentenced for federal crimes
2. Post-tornado composting a solution for disposal of dead livestock
3. TSCRA works with sale barns to catch Houston cattle thief
4. More beef cows in worst drought regions than a year ago
5. Michigan hay buyers should plan purchases early
6. NASA backs 3D food printer to feed growing population

1. Commentary: In praise of animal foods
2. What’s on America’s grill this weekend?
3. Meat industry associations quick to attack the new MCOOL rule
4. Seven jobs more dangerous than farming
5. NASA backs 3D food printer to feed growing population
6. Post-tornado composting a solution for disposal of dead livestock