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- { CATI , CIT , CIT- Personnel }
- Biography -
Randy C. Perry
Email: randyp@zimmer.csufresno.edu
Phone: (559) 278-4793
Specialty Areas
- Reproductive management
- Beef cattle production and management
Education
- Ph.D. Kansas State University; June 1990; Animal Science, Reproductive Physiology
- M.S. Kansas State University; April 1989; Animal Science, Reproductive Physiology
- B.S. California Polytechnic State University, San Luis Obispo; June 1984; Animal Science
Professional Experience
Professor: California State University, Fresno. Involved with teaching and advising students in the Department of Animal Sciences and Agricultural Education and served as Supervisor of Beef Program and Production Manager of Beef Production Units (July 1990 to present).
Extension Assistant: Kansas State University. Involved in many aspects of livestock extension work. Major responsibilities included involvement in the Integrated Resource Management program, the Balanced Farming Program and use of BEEFpro, a computerized management program for beef producers and county agents (September 1987-May 1989).
Graduate Research Assistant: Kansas State University. Involved in performing research dealing with the management, nutrition and reproduction of beef cattle. Duties included data collection, summarization and analysis, and publication of results (January 1986-September 1987).
Secretary / Fieldman: Amerifax Cattle Association. Responsible for coordination of all breed programs including shows, sales, performance tests and breed promotion, and publishing all publications including a quarterly newsletter, breeder handbook and AI sire directory (January 1985-December 1985).
Student Manager: California Polytechnic State University Yearling Bull Test. Responsible for health, management and records of over 300 yearling bulls (May 1984-October 1984).
Assistant Herdsman: Numerous purebred beef operations including Bright Brothers Hereford Ranch, Le Grand, California; Pedretti Ranches, El Nido, California; and Rose Charolais Ranch, Jerome, Idaho. Duties included health, feeding, fitting and showing of cattle and general ranch duties (1977- 1984, part time).
Partner: Orestimba Charolais, Catheys Valley, California, a family owned purebred cattle operation. Involved with management, selection, nutrition, artificial insemination, pregnancy diagnosis, records, registrations and merchandising (1974 to present).
Additional Teaching Experience
Lectured on various topics pertaining to livestock production and management to a number of groups of international students or producers, including groups from Japan, Brazil, China, and the former Soviet Union.
Taught a number of different courses within the Department of Animal Sciences and Agricultural Education at California State University, Fresno, including Advanced Beef Management, Beef Production, Animal Reproduction, Reproductive Physiology and Endocrinology, AI and Embryo Transfer, and General Animal Science.
Served as Graduate Teaching Assistant within the Department of Animal Sciences at Kansas State University. Demonstrated the use of BEEFpro, a computer program, and utilized it to teach management practices to undergraduate students in conjunction with departmental courses and to various groups of foreign students involved in the International Meat and Livestock Program, Kansas State University.
Served as Assistant Livestock Judging Team Coach, Kansas State University and Merced College.
Spoke at extension meetings, producer meetings and field days on a number of different topics including sire selection and use of EPD's, cowherd nutrition, heifer development, estrous synchronization, artificial insemination and applications of ultrasound.
Involved with dairy extension specialists in AI training and refresher clinics in both California and Kansas, which involved both hands on training as well as lectures covering pertinent topics.
Conducted numerous type, fitting and showmanship demonstrations for youth both in California and Kansas. Served as a 4-H Beef Leader.
Research Conducted
Use of ultrasonography to monitor follicular development, uterine involution, and pregnancy; and to measure subcutaneous fat and ribeye area in cattle.
Estrous synchronization and artificial insemination in cattle.
Pregnancy diagnosis via rectal palpation in cattle.
Jugular cannulation and blood collection.
Weigh-suckle-weigh technique and oxytocin injection combined with milking machine to determine milk production in cattle.
Radioimmunoassay procedures for progesterone, estradiol, luteinizing hormone, and follicle stimulating hormone.
Intake and digestibility of feedstuffs using internal markers.
Data collection, summarization, and statistical analysis, including analysis of variance and linear regression.
Dissertation Research
Characterization of follicular development and ovarian dynamics in postpartum suckled beef cows and the influence of pre- and postpartum level of energy on follicular development, uterine involution, and serum concentrations of luteinizing hormone and follicle stimulating hormone.
Thesis Research
Hay quality, breed, and ovarian development effects on onset of puberty and reproductive performance of beef heifers.
Advising Experience
Served as major advisor of 72 undergraduate students, as major advisor of two master's students, and served on graduate committee of four master's students.
Faculty advisor of Young Cattlemen's Association and Beef Show Team.
Professional and Industry Affiliations
- Current President - California Charolais Association
- Current National Director and Treasurer - American-International Charolais Association
- Current Technical Advisor - California Beef Cattle Improvement Association
- Current Director - Fresno-Kings County Cattlemen's Association
- Current Member - National Cattlemen's Beef Assoc. Science and Technology Research Comm.
- Current Member - California Cattlemen's Association Quality Assurance Committee
- Past President and Vice President - Animal Science Graduate Student Assoc., Kansas State Univ.
- California and American Angus Associations
- American Registry of Professional Animal Scientists
- American Society of Animal Science
Honors and Awards
Nicolas Salgo Outstanding Teacher Award - 1993
California State University, Fresno
Teacher Award of Merit - 1992 and 1993
National Association of Colleges and Teachers of Agriculture
Outstanding Animal Science Graduate Student
Kansas State University
Outstanding Senior Award
California Polytechnic State University, San Luis Obispo, Boots and Spurs Club
Senior Achievement Award Winner
California Cattlemen's Association
Allstar and National Winner in Beef
National 4-H Program
Publications and Abstracts in Refereed Journals
Perry, R.C., D.E. Jones, G.R. Densford, J.A. King, M.A. Schneewind and S.D. Stafford. 1993.
Effects of bull exposure on postpartum reproduction in first-calf beef cows. Journal of Animal Science 71 (Suppl. 1):246.
Beal, W.E., R.C. Perry and L.R. Corah. 1992. The use of ultrasound in monitoring reproductive physiology of beef cattle. Journal of Animal Science 70:924-929.
Patterson, D.J., R.C. Perry, G.H. Kiracofe, R.A. Bellows, R.B. Staigmiller and L.R. Corah. 1992. Management considerations in heifer development and puberty. Journal of Animal Science 70:4018-4035.
Perry, R.C., L.R. Corah, R.C. Cochran, W.E. Beal, J.S. Stevenson, J.E. Minton, D.D. Simms and J.R. Brethour. 1991. Influence of dietary energy on follicular development, serum gonadotropins, and first postpartum ovulation in suckled beef cows. Journal of Animal Science 69:3762- 3771.
Perry, R.C., L.R. Corah, G.H. Kiracofe, J.S. Stevenson and W.E. Beal. 1991. Endocrine changes and ultrasonography of ovaries in suckled beef cows during resumption of postpartum estrous cycles. Journal of Animal Science 69:2548-2555.
Perry, R.C., L.R. Corah, R.C. Cochran, J.R. Brethour, K.C. Olsen and J.J. Higgins. 1991. Effects of hay quality, breed and ovarian development on onset of puberty and reproductive performance of beef heifers. Journal of Production Agriculture 4:13-18.
Hightshoe, R.B., R.C. Cochran, L.R. Corah, G.H. Kiracofe, D.L. Harmon and R.C. Perry. 1991. Effects of calcium soaps of fatty acids on postpartum reproductive function in beef cows. Journal of Animal Science 69:4097- 4103.
Patterson, D.J., R.C. Perry, G.H. Kiracofe, R.A. Bellows, R.B. Staigmiller and L.R. Corah. 1991. Management considerations in heifer development and puberty: A review. Journal of Animal Science 69 (Suppl. 1):486.
Perry, R.C., L.R. Corah, W.E. Beal, R.C. Cochran, D.D. Simms and J.R. Brethour. 1990. Effects of pre- and postpartum dietary energy on reproductive function, milk production, body weight and condition change in suckled beef cows. Journal of Animal Science 68 (Suppl. 1):76.
Perry, R.C., W.E. Beal and L.R. Corah. 1990. Reproductive applications of ultrasound in cattle - Part 2: Monitoring uterine characteristics and pregnancy. Agri-Practice 11:31-34.
Perry, R.C., W.E. Beal and L.R. Corah. 1990. Reproductive applications of ultrasound in cattle - Part 1: Monitoring ovarian structures. Agri-Practice 11:28-32.
Beal, W.E., R.C. Perry and L.R. Corah. 1990. Follicular development in cows fed melengestrol acetate to synchronize estrus. Journal of Animal Science 68: (Suppl. 1):12.
Henderson-Perry, S.C., L.R. Corah and R.C. Perry. 1989. The use of ultrasound in cattle to estimate subcutaneous fat thickness and ribeye area. Journal of Animal Science 67 (Suppl. 1):433.
Patterson, D.J., R.C. Perry, E.P. Call, W.E. Beal and L.R. Corah. 1989. Comparison of ultrasonography and ovarian palpation for determination of puberty in beef heifers. Journal of Animal Science 67 (Suppl. 1):463.
Perry, R.C., D.D. Simms, L.R. Corah, D.J. Patterson and M.A. Sorell. 1988. An analysis of weaning weight records in Kansas cowherds from 1968 to 1985. Journal of Animal Science 66 (Suppl. 1):117.
Perry, R.C., L.R. Corah, R.C. Cochran and J.R. Brethour. 1988. Effects of hay quality, breed, and ovarian development on the onset of puberty and subsequent reproductive performance of beef heifers. Journal of Animal Science 66 (Suppl. 1):445.
Houghton, P.L., L.R. Corah, G.W. Boyd, D.J. Patterson and R.C. Perry. 1988. Artificial insemination (AI) student internship for undergraduates. Journal of Animal Science 66 (Suppl. 1):120.
McGuire, W.J., J.M. Wright, R.C. Perry and G.H. Kiracofe. 1988. The effect of charcoal extracted bovine follicular fluid and/or norgestomet on prepuberal beef heifers. Journal of Animal Science 66 (Suppl. 1):151.
Perry, R.C., L.R. Corah, T.B. Goehring and G.W. Boyd. 1987. Effects of different combinations of melengestrol acetate (MGA) and prostaglandin (PGF2‡) on estrous synchronization and reproductive performance in beef heifers and cows. Journal of Animal Science 65 (Suppl. 1):105.
Field Day Reports
Perry, R.C. and D.E. Jones. 1994. Effects of bull exposure on postpartum reproduction in fall- calving, first-calf beef cows. California Agriculture Technology Institute Research Bulletin No. 940803.
Perry, R.C., M. L. Mosinski and J. Morgan. 1994. Estrous synchronization and natural service. San Joaquin Experimental Range Field Day Proceedings. pp. 20-22.
O'Conner, G., R. Perry, D. Jones and M. Bhangoo. 1994. Kenaf supplementation. San Joaquin Experimental Range Field Day Proceedings. pp. 13-16.
Perry, R.C., D.E. Jones and M.S. Bhangoo. 1993. Kenaf supplementation of grazing beef cattle. San Joaquin Experimental Range Field Day Proceedings. pp. 14-17.
Perry, R.C., D.E. Jones and M.S. Bhangoo. 1993. A preliminary study on kenaf as a feed for livestock. International Kenaf Conference Proceedings. pp. 45-48.
Nelson, A.O., R.C. Perry and D.E. Jones. 1993. Yearling heifer response to copper supplementation. San Joaquin Experimental Range Field Day Proceedings. pp. 12-13.
Perry, R.C. 1992. Developing heifers to a target weight and the effects of heifer development on future productivity. San Joaquin Experimental Range Field Day Proceedings. pp. 8-9.
Perry, R.C., L.R. Corah, J.S. Stevenson, W.E. Beal, G.H. Kiracofe, J.E. Minton, R.C. Cochran and J.R. Brethour. 1991. Follicular development and reproductive hormone changes during postpartum anestrus in suckled beef cows. Kansas Agriculture Experiment Station Progress Report No. 623. pp. 25-27.
Corah, L.R. and R.C. Perry. 1991. Utilization of ultrasound technology in the beef cattle industry. International Beef Symposium Proceedings pp. 242-246, Great Falls, Montana.
Schneewind, M.A., S.D. Stafford, D.E. Jones and R.C. Perry. 1991. San Joaquin Experimental Range Field Day Proceedings. pp. 9-11.
Perry, R.C., L.R. Corah, W.E. Beal, G.H. Kiracofe, R.C. Cochran, J.S. Stevenson, D.D. Simms, and J.R. Brethour. 1990. Effects of dietary energy on reproductive function and production in suckled beef cows. Kansas Agric. Exp. Station Progress Rep. No. 592. pp. 53-58.
Perry, R.C., D.D. Simms, L.R. Corah and D.J. Patterson. 1988. An analysis of weaning weight records in Kansas cowherds from 1968 to 1985. Kansas Agric. Exp. Station Progress Rep. No. 539. pp. 1-4.
Perry, R.C., L.R. Corah, R.C. Cochran and J.R. Brethour. 1988. Effect of hay quality and breed on the onset of puberty and subsequent reproductive performance in beef heifers. Kansas Agric. Exp. Station Progress Rep. No. 539. pp. 5-9.
Perry, R.C., G.W. Boyd, T.B. Goehring and L.R. Corah. 1987. Effects of MGA and Prostaglandin on estrus induction and synchronization in cows and heifers. Kansas Agric. Exp. Station Progress Rep. No. 514. pp. 66- 70.
Popular Press Articles
Perry, R.C. and M.L. Mosinski. 1995. The importance of proper development of beef bulls. Angus, The Magazine (July/August) page 14.
Perry, R.C. 1994. Successful AI programs. Angus, The Magazine (July/August edition) page 10.
Perry, R.C. and M.L. Mosinski. 1994. Beef cattle frame score. California Beef Improvement Association Notes (June/July edition) page 10.
Perry, R.C. 1993. Nutritional management of beef cow herds. Angus, The Magazine (July/August edition) page 10.
Perry, R.C. 1993. The use of ultrasound in beef cattle production. California Cattleman Magazine (July/August edition) page 118.
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