Browsing by Author "Huff, Arden N."
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- Beef Steer Guide and Record, Unit IIRowan, Dennis; Huff, Arden N.; Mast, C. C. (Virginia Cooperative Extension Service, 1976-08)
- The effects of added dietary fat on young exercising horsesGreiwe-Crandell, Kathleen M. (Virginia Tech, 1990-02-05)Two groups of three horses each were fed either a control diet of ground hay and concentrates or a similar diet with 10.5% added fat. The horses were trotted at 2.9 m/sec to a heart rate (HR) of 160 beats per minute (BPM) 5 d/wk on an equine treadmill set at go for a training period of 12 wk. A standard exercise test (SET) was performed at wk 0, 6, and 12. Blood samples were taken before, during, and after exercise and analyzed for lactate, glucose, cholesterol, total serum protein, and free fatty acids (FFA). Muscle biopsies were taken before and after exercise during the SETs on wk 1 and wk 12. Differences between wk 0, 6, and 12 in blood levels were found: lactate (P < .01) and glucose (P < .001) decreased, while cholesterol (P < .01) and FFA (P < .05) for both groups, indicating a conditioning response. However, no differences were found in any of the blood factors between groups. In the final SET, pre-exercise muscle glycogen levels in the fat-fed horses were lower (13.61 vs 25.44 mg/g wet tissue). Post-exercise glycogen levels, however, were higher in the fat- fed horses (10.95 vs 8.27 mg/g wet tissue), indicating that there may have been a glycogen-sparing effect. The fat-fed horses avg .3 kg/d less in daily consumption, and avg .03 kg/d more in ADG (.36 kg/d for control vs .33 kg/d for fatfed). Differences in trotting times (time to HR 160 BPM) between groups were seen at the end of four (P < .05) and eight (P < .05) Wki control horses improved 39% while fatfed horses only 25% from wk 1 to wk 8. No differences were seen between groups from wk 9 to 12. Improvement over the 12 wk period was similar for both groups (control 61%, fatfed 67%). These results seem to suggest that although fat appears to be a reasonable source of energy for the horse, there may be a long adaptation period for horses fed higher levels of fat.
- How to Make a Rope HalterBaylor, C. E.; Huff, Arden N. (Virginia Cooperative Extension Service, 1966-10)
- The influence of month of birth on growth and development of thoroughbred foals and yearlingsGoater, Lauren Elaine (Virginia Polytechnic Institute and State University, 1984)Thirteen Thoroughbred farms in Virginia provided 260 horses for the study of growth patterns of horses from birth to July of the yearling year. Measurements included heart girth, wither and hip height, body length, chest width, knee to ground length, cannon bone circumference and body weight, as estimated by heart girth. Quadratic regression equations, adjusted for the effects of farm, sex and month were developed to describe the growth of foals. Foals born in January-February were smallest overall at birth, 30 and 90 d-of-age (P< .01) May-June foals were largest at birth. Differences in wither height, body length and body weight of foals born in May-June vs in January-February at 30 d-of-age, were 1.7, 3.8 cm and 21.6 kg, respectively; At 90 d-of-age, differences were 1.6, 4.9 cm and 13.3 kg, respectively. Differences in size due to birth month were apparent up to 270 d-of-age. May-June foals exhibited the fastest initial growth rate. Colts were intermittently larger than fillies subsequent to 150 d-of-age. In January of the yearling year, birth mouch influenced all measurements (P< .01). Foals born in January to March were larger than foals born in April to June. In July of the yearling year, differences were identified less often and actual differences in size were smaller than in January. Average differences in heart girth and wither height of foals born in January to March compared to foals born in April to June were 8.4 and 5.1 cm in January and 5.2 and 3.6 cm in July of the yearling year. Foals born in April to June displayed larger gains during the first 7 mo of their yearling year than did early-born foals. Correlation coefficients between measures of foals up to 400 d-of-age decreased or remained the same. Thus, growth in various proportions was asynchronous. Regression coefficients that described the resemblance between wither heights of parents and offspring increased with age and were highest in July of the yearling year. Offspring-midparent regression coefficients of 1982 foals increased from .50 ±.18 at 30 d-of-age to .78 ±.14 at 400 d-of-age. The regression coefficient in July was .84 ±.15.
- Leader's guide : Virginia 4-H horse programHuff, Arden N.; Lawrence, Larry A. (Virginia Cooperative Extension, 2004)
- Market Hog Guide & RecordRowan, Dennis; Allen, L. B.; Cooper, C. R. (Charles R.); Huff, Arden N. (Virginia Cooperative Extension Service, 1978-03)
- Physiological effects of diet and exercise in the equineWorth, Melyni J. (Virginia Polytechnic Institute and State University, 1988)Two experiments were conducted to investigate the effect of conditioning on the ability of the equine to digest and utilize nutrients and to determine the effect of dietary fat as an energy source on the physiological parameters associated with fitness using a standard exercise test. Conditioning horses increased apparent digestibilities of crude protein (CP) (P<.05), dry matter(DM), and acid detergent fiber (ADF) (P<.1). Conditioning also tended to increase the apparent digestibility of neutral detergent fiber (NDF), cellulose, cell contents, and energy. Heart rates and blood lactate levels indicated that the conditioned horses were fitter than their unconditioned controls. In the second experiment, horses were fed isocaloric diets, one containing added fat and the other a standard hay/corn diet. Adding fat while maintaining equal available energy concentration depressed apparent digestibility of dry matter (56.7 vs 67.3 % P<.05), cell contents (75.6 vs 82 %, P<.05), energy (61.2 vs 71.8 %, P<.05) and NDF (29.2 vs 51.3 %, P<.05), in unconditioned horses. There was a trend towards decreased apparent digestibility of CP and ADF. Addition of fat increased apparent digestibility of ether extract (89.2 vs 65.6 %, P<.05). Conditioning increased apparent digestibility of CP (64.8 vs 73.7 %, P<.05) and energy (61.2 vs 65.6 %, P<.05) and tended to increase apparent digestibility of DM (56.7 vs 60.8 % ) and ADF (26.8 vs 17.8 %) for horses fed a fat supplemented diet. Conditioning did not cause a change in apparent digestibility of ADF, CP, and DM in horses fed the control diet, or apparent digestibilities of NDF, ether extract, cell contents, or energy for either diet. There were no differences in physiological parameters used for assessing fitness (heart rate, blood lactate, and respiration rate), between horses fed a diet containing 14% added fat and no added fat. There was no difference in body temperature, blood glucose levels, blood urea-N (BUN), or creatine phosphokinase (CPK) between horses fed the two diets.
- Proceedings from 1982 seminars, Virginia Horse Convention : March 19-21, Va. Tech, Blacksburg, VirginiaVirginia Horse Convention (1982 : Virginia Tech); Huff, Arden N. (Virginia Cooperative Extension Service, 1982)
- Proceedings from 1983 seminars, Virginia Horse Convention : January 28-30, Holiday Inn-Motown, Richmond, VirginiaVirginia Horse Convention (1983 : Richmond, Va.); Huff, Arden N. (Virginia Cooperative Extension Service, 1983)
- Proceedings from 1984 seminars, Virginia Horse Convention : January 20-22, Holiday Inn-Motown, Richmond, VirginiaVirginia Horse Convention (1984 : Richmond, Va.); Huff, Arden N. (Virginia Cooperative Extension Service, 1984)
- The proceedings of the Horsemen's Seminar : March 15-17, 1974Huff, Arden N. (Virginia Polytechnic Institute and State University, 1974)
- The proceedings of the Horsemen's Short Course : March 17-19, 1977, Donaldson Brown Center for Continuing Education, VPI & SU, Blacksburg, Va.Huff, Arden N. (Virginia Polytechnic Institute and State University, 1977)
- The proceedings of the Horsemen's Short Course : March 9-11, 1978, Donaldson Brown Center for Continuing Education, VPI & SUHuff, Arden N. (Virginia Polytechnic Institute and State University, 1978)
- The Proceedings of the update seminar : March 24, 1979, Ingleside Resort, Staunton, Va.Huff, Arden N. (Virginia Polytechnic Institute and State University. Cooperative Extension Service, 1979)
- Proceedings, 1981, Virginia Horse Update Seminars : January, 17 - Salem, January 31 - Emory, February 7 - PetersburgVirginia Horse Update Seminars (1981 : Salem, Va., etc.); Huff, Arden N. (Virginia Cooperative Extension Service, 1981)
- Self-Determined Horse ProjectHuff, Arden N.; Jamison, Kathleen (Virginia Cooperative Extension, 2003)Project guidebook for senior 4-H horse project members.
- Self-Determined Horse ProjectHuff, Arden N.; Jamison, Kathleen (Virginia Cooperative Extension, 2016-02-11)Project guidebook for senior 4-H horse project members.
- Training Needs Of Area Specialized Extension Agents in the North Carolina Extension ServiceGibson, Jerry D. (Virginia Tech, 1992-12-01)The study determined the level of agreement between ASEAs and their administrators and subject-matter specialists as to the competency areas considered most important to the effectiveness of the agents. The study also determined the specific items within the competency areas that ASEAs would like to have included in their in-service training. Selected demographic characteristics were collected to determine characteristics such as agents' age, race, gender, level of education, and years of experience. The population for this study consisted of 66 ASEAs, 49 administrators, and 18 subject-matter specialists employed by the North Carolina Cooperative Extension Service. Data were collected by mailing the questionnaire accompanied by a letter from the director of the North Carolina Cooperative Extension Service announcing the study and providing details on its nature, use of the data, and instructions for completing the questionnaire. The data were analyzed using the Statistical Package for the Social Sciences (SPSS-X). Frequencies and means were used to describe the research objectives. Demographics were surveyed using an instrument developed for that purpose by the researcher. Major findings included several items. In terms of importance, ASEAs, administrators, and specialists rated program planning highest. In rating the need for training, ASEAs, administrators, and specialists also rated program planning highest. Specific items in the program planning competency area that were rated important, 3.0 on a 4.0 scale, were the role of area agents, involving lay people, long-term program development, area agent programming, developing programs, and evaluation. The only important differences among groups--ASEAs, administrators, and specialists-~regarding specific items were in their ratings of the need for training of the items of history, philosophy, University USDA-partner, and county responsibilities in the general competency area of organization and administration. An important differences among groups was also observed in ratings of need for training in the program planning competency area for the specific item program planning. No other important differences were found. The majority of ASEAs held master's degrees. Over 50% of ASEAs had a tenure as ASEA of 5 years or less, and over 50% had a tenure with the Extension Service of 6 years or less. The majority of ASEAs were male; only 18% were female. The majority of ASEAs were Caucasian; only 5% were minorities. From the data gathered in this study, a proposed Area Specialized Extension Agent Development Institute was developed.
- Virginia 4-H Horse Project. Horse Business Project (horse development, training, marketing, trading)Huff, Arden N. (Virginia Cooperative Extension Service, 1974-07)
- Virginia 4-H Horse Project. Horses Are FunHuff, Arden N. (Virginia Cooperative Extension Service, 1976-08)