Minnesota Cattle

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Crossbreeding offers two primary advantages: heterosis (also called hybrid vigor) and the opportunity for breed complementarity. When the performance of crossbred offspring exceeds the performance of the purebred parents, the difference is called heterosis. In other words, the whole can be greater than the sum of the parts. For instance, if straightbred Hereford and Angus calves average 500 pounds at weaning and Hereford x Angus calves average 525 pounds, the heterosis realized is (525-500)/500, or 5 percent. Maximizing Heterosis Realization of heterosis is the closest thing to a free lunch that can be found in the cattle business. Thus, all commercial beef cattle producers should seek to maximize heterosis in their herds. Some crossbreeding systems offer a greater degree of heterosis than others, and some traits respond more to crossbreeding than others. Heterosis is realized in inverse proportion to heritability for a given trait. In other words, lowly heritable traits offer the most heterosis, highly heritable traits the least. Table 1 lists beef cattle traits of economic importance and their heritability estimates. In general, reproductive traits are lowly heritable, growth traits are moderate and carcass traits are highly heritable. Thus, differences in reproductive performance between herds are virtually all due to environment and management, while differences in growth or carcass traits are due primarily to genetics. Also, reproductive traits will respond the most to crossbreeding, carcass traits the least. Read more...


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cattletoday.xml

BLACK INK -- DON'T MISS THE MIRACLES
After a couple of licks, the baby calf got up, wobbled ever so slightly and then confidently turned its attention to nursing.
A GOOD VACCINATION PROGRAM IS ONLY AS GOOD AS TECHNIQUES USED
"Shoot, I messed up the vaccines." If these words have ever been uttered while processing cows and calves, it may be time for implementation of some simple chute side organization tips.
PRODUCERS SHOULD SEEK EFFICIENCY IN THEIR COWS
What do we know about efficiency within the beef cattle business? A lot. What do we know about understanding beef cattle efficiency? A little.
IT'S THE PITTS -- VISITING DIGNITARIES
Like chuck-line riding cowboys of yesteryear, they go from ranch to ranch, carrying the news and performing a job no one else wants, let alone can do. Other than a few cowboy poets and purebred bull auctioneers, they are the only celebrities we have in the cow business.
GENETIC STRENGTH SHOWN AT TOWN CREEK FARM SALE
One of the largest crowds ever participated in-person and on-line in the Town Creek Farm Sale, at the ranch near West Point, Mississippi on Saturday, October 21, 2017.
THE WORLD ACCORDING TO HOOTER MCCORMICK -- SELF-SNOOKERED
Stay friends or family with someone long enough and you see every side of each other, good bad and in between.
BE PREPARED TO HANDLE CATTLE DURING WINTER
Winter weather if finally arriving and when it gets here for good we need to be prepared to handle and transport cattle appropriately.
GELBVIEH ASSOCIATION TO HOST SYMPOSIUM
All cattlemen and women are invited to attend the American Gelbvieh Association's (AGA) third annual commercial cattlemen's educational symposium titled Cattlemen's Profit Roundup.
STARTING A BACKGROUNDING PROGRAM TAKES PLANNING
Some ranchers hold calves over as yearlings to sell later/bigger, and some people buy light calves in the spring to put on grass and grow to a larger weight. Some put weaned calves into a confinement program--fed a growing ration until they are ready to go to a finishing facility.
THERE ARE CHALLENGES TO KEEPING FEEDLOT CALVES HEALTHY
It's harder today to keep calves healthy after they leave the ranch and enter a feedlot. Dr. Eugene Janzen (Assistant Dean, Clinical Practice, Veterinary Medicine, University of Calgary) says there has been a lot of research in the past decades looking at pharmaceutics—vaccines and antibiotics.
TEXAS AG LOSSES FROM HARVEY ESTIMATED AT $200 MILLION
Hurricane Harvey, which decimated parts of South Central Texas and the upper Gulf Coast, caused more than $200 million in crop and livestock losses, according to Texas A&M AgriLife Extension Service economists.
IT'S THE PITTS -- DELIVER US FROM EVIL
Did you see where Amazon, the fourth most valuable company in the world, bought Whole Foods? This has the trillion dollar grocery industry all atwitter and even has Wal Mart shakin' in its shorts. So much so that it came up with the idea of delivering the groceries you order online right to your refrigerator.
HUNTIN' DAYLIGHT -- FLATTER BUT BROADER
While cattle markets since the first of the year continue to amaze, apparently widespread profits across industry sectors cloud the notion of how long and far the nation's cowherd will continue to expand.
BLOAT RISKS INCREASE WITH COOLER WEATHER AND FROST
Bloat generally occurs when there's a change to higher protein feeds, such as from grass to alfalfa, according to Dr. James England (University of Idaho Caine Center).
DEATH CAUSED BY TOXICITY IN HERDS CAN BE FRUSTRATING
Both nitrate/nitrite and ammonia/urea toxicity in cattle can cause multiple deaths in a herd with few clinical signs and few to no gross or microscopic lesions of animals who die. These deaths can be frustrating for farmers and veterinarians and can present a diagnostic challenge to pathologists.

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