Bigger Is Not Always Better Finding the Right Sized Cow how to get rid of small acne scars BeefResearch.ca

Selection for the type of cattle that perform best in how to get rid of small acne scars the feedlot (i.E. Produce the most amount of beef in the shortest period how to get rid of small acne scars of time) may not produce the ideal replacement animals in a grazing how to get rid of small acne scars environment, yet selection for improved growth rates has increased average mature how to get rid of small acne scars cow weights from 1000 lbs to 1400 lbs over the how to get rid of small acne scars last 30 years (weaber, cornbelt cow-calf conference 2012). Almost all producers underestimate the size of their cows, unless or until they weigh them.

Maintaining herd performance records can take some of the guesswork how to get rid of small acne scars out of defining which cows are efficient producers. Adjusted 205 day weaning weights remove the age bias and how to get rid of small acne scars are quite useful in a tight calving period. However, during long-drawn out calving seasons (which are inherently inefficient) adjusted weaning weights will tend to favour light, late born calves – that may or may not continue to grow the way how to get rid of small acne scars the adjustment predicts.

Determining cow productive efficiency by using weaning weight as a how to get rid of small acne scars percentage of cow body weight is definitely biased towards smaller how to get rid of small acne scars cows, and not a true measure of efficiency. An 1100 lb cow weaning 60% of her body weight weans a 660 lb calf. A 1400 lb cow that weans at 50% of her body weight is weaning a calf that is how to get rid of small acne scars 40 lbs heavier. Heavier cows tend to wean heavier calves, and a heavier cow will bring more at auction when how to get rid of small acne scars it is time to ship her.

But a heavier cow means increased maintenance requirements for feed, and the same amount of pasture will carry fewer big how to get rid of small acne scars cows than smaller cows. This is not a linear relationship, however. Increasing cow weight by 27% (from 1100 lbs to 1400 lbs, assuming a high lactation level for both weight classes) only increases maintenance requirements by 20% (NRC, 2000); for that reason, seventy-eight 1400 lb cows require about the same amount of how to get rid of small acne scars feed for maintenance as ninety-three 1100 lb cows (johnson, BIF 2010).

The total feed energy required increases as cows get bigger, but the amount of energy required per lb of body how to get rid of small acne scars weight actually decreases, making a 1400 lb cow 5.5% more efficient than an 1100 lb cow, assuming similar milk production (hamilton, virtual beef 2010; NRC, 2000). Perhaps obviously, cows with higher genetic potential for milk production will have how to get rid of small acne scars increased maintenance requirements, but also produce a heavier calf at weaning.

What needs to be penciled out is whether the potential how to get rid of small acne scars increases in weaning weight and salvage value from larger, heavier milking cows offset the costs of increased feed and how to get rid of small acne scars decreased carrying capacity. The answer here depends almost entirely on the environment (quality and quantity of forage resources), cost of supplemental winter feed, and marketing strategy.

In the table below, we can see that heavier milking, bigger cows are more efficient in some situations, while moderate, lighter milking cows are more efficient in others. A similar table can be found in the latest beef how to get rid of small acne scars improvement federation guidelines.

Environments such as the shortgrass parts of the country favour how to get rid of small acne scars small to moderate cows without extreme milk production, while the parkland region tends to favour larger, heavier milking cows. An early agriculture canada study (smith, 1987a,b) illustrates this point. In brandon, MB, a fertile area where feed resources were abundant, heavy milkers were the most profitable cows. However, in the manyberries, AB area, where feed resources were more limited and the environment more how to get rid of small acne scars stressful, light to moderate milkers proved to be the most profitable.

Feed efficiency is one trait that has the ability to how to get rid of small acne scars dramatically influence the type of cows you match to the how to get rid of small acne scars environment. A big cow may eat the same as a smaller how to get rid of small acne scars cow while raising the same size calf and maintaining the how to get rid of small acne scars same reproductive cycle and body condition. The way that cows utilize feed (especially in pasture or forage situations) has not been studied to the same extent as feed how to get rid of small acne scars efficiency in feeder animals.

A project funded by the alberta beef producers (ABP) intends to provide a reliable method of measuring feed efficiency how to get rid of small acne scars in replacement heifers by comparing residual feed intake (RFI) measurements in confinement and on pasture, while also quantifying the relationship of RFI with first calving how to get rid of small acne scars fertility and productivity.

Another project funded by ABP and the beef cattle research how to get rid of small acne scars council (BCRC) under the 2 nd beef cattle industry science cluster aims how to get rid of small acne scars to demonstrate how to build a feed efficient cowherd, without sacrificing reproductive performance and maintaining or improving progeny carcass how to get rid of small acne scars traits. Results are expected in 2016.

There is more to cow efficiency than size, and while bigger is not always better, it might be in some situations. Selecting cows that are the best fit for their environment, available resources, and your marketing strategy will optimize production efficiency and improve how to get rid of small acne scars profitability.

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