Recently added articles from Professional Animal Scientist:
Effects of Dietary Neutral Detergent Fiber on Intakes of Dry Matter and Net Energy by Dairy and Beef Cattle: Analysis of Published Data
Oct 01, 2008; ... ABSTRACT Meta-analysis was applied to evaluate the relationships between dietary NDF and voluntary intakes of DM and net energy by cattle from 2 databases. The databases were configured from literature publications for dairy (18 experiments) and beef cattle (11 experiments) in which ...
Readability of Thirteen Different Radio Frequency Identification Ear Tags by Three Different Multi-Panel Reader Systems for Use in Beef Cattle
Oct 01, 2008; ... ABSTRACT The objectives of these experiments were to compare the readability of 13 different commercially available brands of radio frequency identification (RFID) ear tags scanned by 3 different multi-antenna RFID panel readers using Angus heifers. The readability of the tags and flow ...
Performance and Physiology of Steers Following Grazing of Toxic Tall Fescue as Influenced by Feeding Soybean Hulls on Pasture and Postgraze Steroid Implantation1
Oct 01, 2008; ... ABSTRACT Carryover effects of feeding soybean hulls (SBH) on toxic tall fescue [Schedonorus arundinaceus (Schreb.)] pasture and effects of postgraze steroid implantation on performance and physiology of steers were evaluated in a 2-yr experiment. Following grazing, 36 steers were ...
Steer Responses to Feeding Soybean Hulls on Toxic Tall Fescue Pasture1
Oct 01, 2008; ... ABSTRACT A grazing experiment was conducted in 2004 and 2005 to evaluate effects of feeding pelleted soybean hulls (SBH) on weight gain, hair coat rating, rectal temperature, and serum prolactin of steers grazed on toxic tall fescue [Schedonorus arundinaceus (Schreb.)]. Forty steers ...
Evaluation of Dry Distillers Grains Plus Solubles Inclusion on Performance and Economics of Finishing Beef Steers1
Oct 01, 2008; ... ABSTRACT A 167-d feedlot study was conducted to evaluate feeding increasing levels of dry distillers grains plus solubles (DDGS) to finishing cattle and the impact on performance and profitability. Crossbred steer calves (n = 240, BW = 306 ± 24.5 kg) were used in 30 pens with dietary ...
Effect of Intensive Winter Management, Partial Season Grazing, and Sorting on Performance and Economics of a Long Yearling Steer Production System1
Oct 01, 2008; ... ABSTRACT A 2-yr study (200 steers/yr) was conducted to evaluate effects of grazing management and sorting by BW at feedlot entry on performance and economics of yearling steers. At receiving, steers (247 ± 21 kg) were randomly allotted to 1 of 2 treatments: low (0.75 kg/d, NORM) or high ...
The Effects of ZinMet Brand Liquid Zinc Methionine on Feedlot Performance and Carcass Merit in Crossbred Yearling Steers1,2,3
Oct 01, 2008; ... ABSTRACT The use of liquid zinc methionine for yearling steers was evaluated. In Exp. 1, a control (CON) treatment provided 15, 40, and 100 mg/kg (DM basis) of Cu, Mn, and Zn from inorganic sources, and an organic trace mineral (ORG) treatment provided 10, 20, and 40 mg/kg (DM basis) of ...
The Effects of Trace Mineral Source on Performance and Health of Newly Received Steers and the Impact of Cobalt Concentration on Performance and Lipid Metabolism During the Finishing Phase1,2,3
Oct 01, 2008; ... ABSTRACT Two hundred sixteen Angus crossbred steers (230 kg ± 5.6) purchased from sale barns were utilized to determine the impact of trace mineral source and concentration on performance, tissue metabolites, and lipid metabolism. Treatments during the 27-d receiving phase consisted of ...
Effect of Corn Processing in Finishing Diets Containing Wet Distillers Grains on Feedlot Performance and Carcass Characteristics of Finishing Steers1
Oct 01, 2008; ... ABSTRACT Three-hundred sixty calf-fed steers (BW = 318 ± 15kg) were used in a completely randomized design to evaluate corn processing methods in finishing diets containing wet distillers grains plus solubles (WDGS). Whole corn (WC) was compared with corn processed by different methods, ...
Effects of Supplementation Strategies on Performance of Early-Weaned Calves Raised on Pastures
Oct 01, 2008; ... ABSTRACT The objective of these experiments was to investigate the effects of supplementation and grazing strategies on the performance of early-weaned calves grazing cool-season and warm-season grasses in Florida. In Exp. 1, 40 calves were early-weaned (92 ± 15 d of age) and randomly ...
Effects of Source of Energy on Performance, Ultrasonic, Carcass, and Economic Characteristics of Early-Weaned Heifers
Oct 01, 2008; ... ABSTRACT Angus × Simmental heifers (n = 192; BW = 253 ± 2 kg) were utilized to evaluate the effects of source of energy on performance, ultrasonic, carcass, and economic characteristics of early-weaned heifers. Treatments investigated were 1) high starch (HS); 2) intermediate starch ...
Oligosaccharides for Dairy Calves
Oct 01, 2008; ... ABSTRACT There is limited information on feeding mannan-oligosaccharides (MOS) and fructo-oligosaccharides (FOS) to calves despite the popularity of these products in the livestock feed industry. A total of 144 Holstein calves (initial BW 44 kg and <7 d old) were used in 3 trials that ...
Effects of Using Wheat Gluten and Rice Protein Concentrate in Dairy Calf Milk Replacers
Oct 01, 2008; ... ABSTRACT There is a limited amount of peer reviewed data on feeding milk replacers (MR) containing either hydrolyzed wheat gluten (HWG; 80% CP) or rice protein concentrate (RPC; 80% CP) to calves under 2 mo of age. Male Holstein calves less than 7 d old from multiple farms (trial 1) and ...
Effect of Including Alfalfa Hays That Were Harvested in the Morning or Evening in Diets of Newly Received Sheep1
Oct 01, 2008; ... ABSTRACT In previous experiments, ruminants preferred evening-harvested (PM-alfalfa) over morning-harvested (AM-alfalfa) harvested alfalfa hay when given a choice. Therefore, could strategic use of PM-alfalfa fed as a pellet or included as a component of receiving diets stimulate naive ...
Fatty Acid Profile in Milk Fat from Qinghai Plateau Yak at Different Altitudes and Parities1
Oct 01, 2008; ... ABSTRACT Qinghai Plateau yak are the most important grazing livestock for milk and beef production on the Qinghai-Tibetan plateau because they are adapted to extremes of cold environment and higher elevation and can be grazed throughout the year. Milk samples (n = 47) from Qinghai ...
Case Study: Scrotal Circumference in Beef Bulls-Prediction of Measures at 365 Days of Age from Measures at 240 Days of Age with Data from the Tucumcari Bull Test
Oct 01, 2008; ... ABSTRACT Measurement of scrotal circumference (SC) is included in a breeding soundness exam for for bovine bulls. A minimum of 30 cm of SC is recommended for yearling bulls (Kennedy et al., 2002). Objectives were to evaluate the association of SC adjusted to 240 d of age with SC adjusted ...
Case Study: The Effects of Severe Winter Weather on Net Energy for Maintenance Required by Yearling Steers
Oct 01, 2008; ... ABSTRACT Severe winter storms in southeast Colorado in December of 2006 and January 2007 resulted in severe economic losses for the cattle feeding industry. Two hundred fourteen steers were weighed on December 26, 2006, and average BW (minus 4% pencil shrink) was 558 kg ± 21.7. Over the ...
CASE STUDY: Effects of Supplemental Linoleic and Linolenic Acids on Reproduction in Holstein Cows
Oct 01, 2008; ... ABSTRACT A trial was designed to compare reproductive outcomes in a commercial dairy herd fed Megalac (calcium salts of long-chain fatty acids, Ca-LCFA, n = 1,312) or Megalac-R (Ca-LCFA+EFA, n = 708; Church and Dwight Co. Inc., Princeton, NJ). Both products are rumen-inert fat ...
REVIEW: Animal Identification Systems in North America
Aug 01, 2008; ... ABSTRACT The threat of a livestock disease outbreak or other animal health events in North America is real. However, predicting both the timing and seventy of an outbreak can be extremely difficult. Animal identification and traceability programs can help limit the spread of disease. The ...
REVIEW: Identification and Traceability of Cattle in Selected Countries Outside of North America
Aug 01, 2008; ... ABSTRACT Animal identification by means of marking animals' bodies was first recorded 3,800 yr ago in the Code of Hammurabi, and throughout history, valuable animals such as horses have been identified to prevent thievery all over the world. Today, the reasons for identification of ...