Browsing by Author "Hammack, Stephen P."
Now showing items 1-20 of 28
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Hammack, Stephen P.; Cleere, Jason J. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )If you’re going to show a steer or beef heifer, you need to consider some basic points, in addition to the quality of the animal.
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )The following summarizes 2017 data by characteristic according to type (British, American, Continental). This year, the former Chianina Cross and All Other Breeds and Crosses divisions were combined and separated in three ...
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Hammack, Stephen P. (Texas Agricultural Experiment Station, 1986)
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Hammack, Stephen P. (Texas Agricultural Extension Service, 1986)
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Hammack, Stephen P.; Gill, Ronald J. (2000-05-03)A beef cow requires energy, protein, minerals and vitamins in its diet. Many factors, including forage quantity and quality and animal body condition, affect the amounts of required nutrients.
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )Most junior beef cattle exhibitors today probably buy feed in a commercially mixed, complete ration. At least partly because of this, many junior feeders may know little of the basics of beef cattle nutrition. The following ...
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Hammack, Stephen P.; Maddox, Jr., L. A. (Texas Agricultural Extension Service, 1977)
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )To manage the genetics of beef cow herds, producers should consider several factors in a logical sequence. These factors are production conditions and markets, types of cattle, breeding systems, breeds, and selection of ...
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Hammack, Stephen P. (2009-01-27)Animal performance is determined by genetics, environment and the interaction between the two. This publication illustrates the interaction of genetics with physical environment, nutrition, management, and economics.
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )Animal response or performance is determined by two factors—genetics and environment. Environment often brings to mind factors such as climate, topography, and forage properties, but it also includes all other nongenetic ...
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Hammack, Stephen P.; Gill, Ronald J. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )Body size or mass and milking level are primary genetic traits in beef production. In addition to their direct effects size and milk relate to many other production functions.
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )A logical genetic strategy for a beef cow herd should include four steps. First, determine your production conditions (including climatic, forage and marketing) and the levels of animal performance that fit those conditions. ...
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )More cattle are being marketed on carcass merit. This has prompted greater interest in breeding and feeding cattle that produce desirable carcasses. Improving carcass merit starts with genetic selection—choosing parents ...
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Hammack, Stephen P. (2008-03-18)A fundamental challenge in commercial beef production is matching genetic capability with climatic, nutritional, management and market conditions. This publication discusses functional levels of types and breeds of cattle ...
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )The subject of breeds intrigues most beef cattle producers. However, breeds are only part of a genetic strategy
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Hammack, Stephen P. (2009-06-17)This publication explains the origin of cattle breeds and reasons for combining them. It also lists the major breeds in Texas and recent breed combinations without registries.
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )What is a breed? A typical dictionary definition is “a race of animals which have some distinctive qualities in common.� One textbook definition is “animals more closely related and alike in appearance than random ...
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Hammack, Stephen P. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )Choosing types of sires is one of the most important decisions for beef producers. That choice should depend on: • Climatic, management, and market conditions • Number of production phases • Breeding systems • Types ...
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Hammack, Stephen P.; Gill, Ronald J. (2009-04-02)Body size is an important genetic factor in beef cattle production. Size is most accurately estimated by considering several factors, such as weight, skeletal size and body condition. Frame Scores are a way of estimating ...
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Hammack, Stephen P.; Gill, Ronald J. (AgriLife Extension, Texas A&M University System; Texas A&M University. Libraries, )Body size is an important genetic factor in beef cattle production. Historically, size was first estimated by measurements such as height or length. As scales were developed, weight became more common as a measure of size. ...