Daily Archives: August 17, 2007

No New ID Funding In House Appropriations Bill

No New ID Funding In House Appropriations Bill

P. Scott Shearer

Beef Magzine

The House of Representatives passed its fiscal year 2008 ag appropriations bill prior to leaving for its summer recess. The bill includes $18.817 billion in discretionary spending, which is $1.002 billion more than last year’s bill. Key items in the bill include:

    * Animal ID — Provides no new funding for the animal ID program.

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Functional Anatomy of the Female Reproductive System

Functional Anatomy of the Female Reproductive System

Ropin’ the Web

The purpose of the information presented in this section is to familiarize the reader with the terminology, anatomical location and functional anatomy of the important components of the cow’s reproductive system.

Hypothalamus

The hypothalamus is located within the brain and is considered to be the coordinating center for most of the reproductive activities and changes. Numerous neural cell bodies located within the hypothalamus are responsible for producing the reproductive hormone, gonadotropin releasing hormone (GnRH).

Under appropriate stimuli, GnRH is released from the hypothalamus into the capillary system (hypophysial portal system) which connects the hypothalamus with the anterior pituitary. Factors from both within the animal and from the outside environment affect the amount and pattern of GnRH production and release by the hypothalamus. Factors which can alter GnRH release in the cow include temperature, photoperiod, stress (social, behavioral, disease, nutrition) and stage of the reproductive cycle (estrus, pregnancy, parturition, suckling).

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35 Years of Feedlot Medicine 1972–2007

35 Years of Feedlot Medicine 1972–2007

By Geni Wren

Drovers.com

A lot has changed in the feedlot industry in the last several decades. Feedlot veterinarians were asked to recall the disease challenges, issues, tools and events that happened in the last 35 years that have impacted feedlot medicine and the management of feedlot cattle.

In the mid-to-late 1970s, veterinarians started changing from individual animal medicine to herd health and “food-animal” medicine. In that decade they dealt with many of the same diseases they do today, even if they didn’t know it back then. Top of mind were Pasteurella, Hemophilus somnus, pneumonia disasters, bovine respiratory disease (BRD), acute bovine viral diarrhea virus (BVDV), coccidiosis, acidosis due to grain overload and new problems with sudden death syndrome which was thought to be clostridial. There was a rapid spread of disease entities due to close proximity of cattle in a confined setting.

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Storing Silage: Bunkers, Piles, or Bags: Which is the most economical?

Storing Silage:  Bunkers, Piles, or Bags: Which is the most economical?

K.C. Dhuyvetter,1 J.P. Harner, III,1 G. Boomer,2 J.F. Smith,1 R. Rodriguez2

Silage is an important feed ingredient for dairy cattle. Dairy producers must strive to deliver high quality forage in an economical manner to the cows. The “most economical manner” may not necessarily mean the lowest cost per ton of silage fed. It refers to the economics of the silage after accounting for the impact it might have on milk production (income) along with costs associated with producing, harvesting, storing, and feeding the silage. The lowest cost per ton should only be the goal if a milk-production-per-ton-adjustment has been made. The objective of this paper is to develop a framework for comparing the economics of three different types of silage storage structures. The framework includes procedures for evaluating bunker silos, driveover or wall-less piles, and silage bags. A companion Excel spreadsheet (SilageStorage$.xls) is available at http://www.agmanager.info/livestock/budgets/production/default.asp#Dairy). This spreadsheet can be used as an aid for making decisions regarding these systems.

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Body Weight Impacts On Herd Nutritional Program

Body Weight Impacts On Herd Nutritional Program

Cattlenetwork.com

Because body weight is one of many factors impacting cattle nutritional requirements, dry matter intake and nutrient requirements should be determined for the specific animal or herd taking performance level, environmental conditions, and other factors into consideration. Even so, the effects of body weight on cattle nutrient requirements can still be illustrated assuming the other factors impacting these nutrient needs are similar across a given set of cattle. For example, the current Beef Cattle NRC publication lists daily dry matter intake requirements of mature lactating cows with 20 pounds of peak milk production per day at 2 months after calving at 25.0 pounds (with 15.2 pounds TDN and 2.79 pounds of crude protein) for a 1000-pound cow and 30.5 pounds (with 18.0 pounds TDN and 3.14 pounds of crude protein) for a 1400-pound cow. This 400-pound difference in cow body weight results in a 5.5-pound difference in daily dry matter intake needs. At 6 months after calving the same two 1000-pound and 1400-pound cows require 22.7 pounds and 28.6 pounds of dry matter intake per day, respectively (a 5.9- pound difference).

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Limi Boosters Name Scholars

Limi Boosters Name Scholars

Cattle Today

Emily Griffiths, Kendallville, Ind., and Katie Hefner, Seminole, Okla., received $500 scholarships from the Limi Boosters at the National Junior Limousin Show and Congress (NJLSC) awards banquet July 27 in West Monroe, La. Katie Crow, Leslie, Ark., and Ashley Doyle, Eddyville, Iowa, received the organization’s educational grants.

Griffiths, 18, joined both the Indiana Junior Limousin Association and National Junior Limousin Association (NALJA) in 1996. This fall, she will attend Black Hawk East Community College in Kewanee, Ill. She plans to transfer to Kansas State University to obtain her bachelor’s degree in animal science then pursue a graduate degree in meat science at South Dakota State University or Texas A&M University. Her goal is to work for a branded beef program.

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Nitrogen Fertilization Strategies for Annual Ryegrass Pastures

Nitrogen Fertilization Strategies for Annual Ryegrass Pastures

Thebeeefsite.com

By Robert Kallenbach, State Forage Specialist, Matt Massie and Richard Crawford, Southwest Research Center, Mt. Vernon. University of Missouri Extension. Livestock operations as far north as southern Iowa are planting annual ryegrass pastures as an alternative to feeding hay in winter.

Easy establishment, rapid autumn growth, and high forage quality are making annual ryegrass popular with dairy and beef farmers alike.

Annual ryegrass has several features that make it popular with livestock producers. When planted in late-summer, annual ryegrass can produce 2 to 3 tons of high-quality feed per acre before December and an additional 3 to 4 tons in the spring (Bishop-Hurley et al., 2001). Few other forage crops can produce this much forage for winter grazing. Annual ryegrass is able to achieve these yields in autumn because it continues to grow even after the first killing frost. Cold-tolerant cultivars can grow when average daily temperatures are below 39°F. In addition, the lack of true dormancy in annual ryegrass allows it to grow during warm spells in winter and to resume growth earlier in spring than many perennial cool-season grasses.

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