Assessment of estrus detection by visual observation and electronic detection methods and characterization of factors associated with estrus and pregnancy in beef heifers

Theriogenology

Volumn 51, Issue 6, 1999, Pages 1121-1132

  Rae, D O ^a   Chenoweth, P J ^b   Giangreco, M A ^a   Dixon, P W ^a   Bennett, F L ^a  

^a UNIVERSITY OF FLORIDA   (United States)

^b KANSAS STATE UNIVERSITY   (United States)

Author keywords

Artificial insemination; Estrus detection; Estrus synchronization

Indexed keywords

ANIMAL; ANIMAL DISEASE; ANIMAL EXPERIMENT; ARTICLE; ARTIFICIAL INSEMINATION; BREEDING; CATTLE; CONCEPTION; ELECTRONICS; ESTRUS; ESTRUS CYCLE; FEMALE; MALE; METHODOLOGY; NONHUMAN; OBSERVATION; PHYSIOLOGY; PREGNANCY; PREGNANCY RATE; SPECIES DIFFERENCE;

ANIMALIA; BOS TAURUS;

EID: 0033055282     PISSN: 0093691X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0093-691X(99)80015-6     Document Type: Article

References (25)

1. Allrich RD. Estrous behavior and detection in cattle. Vet Clin N Am Food Anim Pract. 9:1993;249-262.
2. Anderson KJ, LeFever DG, Brinks JS, Odde KG. The use of reproductive tract scoring in beef heifers. Agri-Pract. 12:1991;19-26.
3. Ball L. Pregnancy diagnosis in the cow. Morrow DA. Current Therapy in Theriogenology. 1980;229-235 WB Saunders, Philadelphia.
4. Cavalieri J, Fitzpatrick LA. Oestrus detection techniques and insemination strategies in Bos indicus heifers synchronised with norgestomet-oestradiol. Aust Vet J. 72:1905;177-182.
5. Dinsmore RP, Cattell MB. Field trial of a radiotelemetry estrous detection system. J Dairy Sci. 76:(Suppl. 1):1993;. 227 abstr.
6. Dransfield MBG, Nebel RL, Pearson RE, Warnick LD. Timing of insemination for dairy cows identified in estrus by a radiotelemetric estrus detection system. J Dairy Sci. 81:1998;1874-1882.
7. Foote RH. Estrus detection and estrus detection aids. J Dairy Sci. 58:1975;248-256.
8. French JM, Moore GF, Graham CP, Long SE. Behavioral predictors of oestrus in domestic cattle, Bos taurus. Anim Behav. 38:1989;913-919.
9. Galina CS, Orihuela A, Duchateau A. Reproductive physiology in Zebu cattle. Unique reproductive aspects that affect their performance. Vet Clin N Am Food Anim Pract. 3:(3):1987;619-632.
10. Galina CS, Orihuela A, Rubio I. Behavioral characteristics of Zebu cattle with emphasis on reproductive efficiency. Fields MJ, Sand RS. Factor Affecting Calf Crop. 1994;345-361 CRC Press, Boca Raton, FL.
11. Herd DB, Sprott LR. Body condition, nutrition, and reproduction of beef cows. Texas Agric Ext Serv. B-1526:1986.
12. Lehrer AR, Lewis GS, Aizinbud E. Estrus detection in cattle: recent developments. Anim Reprod Sci. 28:1992;355-361.
13. Nebel RL, Walker WL, McGilliard ML, Allen CH, Heckman GS. Timing of artificial insemination of dairy cows: fixed time once daily versus morning and afternoon. J Dairy Sci. 77:1994;3185-3191.
14. Nebel RL, Grove MB, Pandolfi SM, Ferris CF. Increased pregnancy frequency in dairy cattle with Heatwatch: a electronic mount detection system. Proc Intl Cong Anim Reprod. 1996;P19-P25.
15. Pennington JA, Albright JL, Callahan CJ. Relationships of sexual activities in estrous cows to different frequencies of observation and pedometer measurements. J Dairy Sci. 69:1986;2925-2934.
16. Pinheiro OL, Barros CM, Figueiredo RA, do Valle ER, Encarnação RO, Padovani CR. Estrous behavior and the estrus-to-ovulation interval in nelore cattle (Bos indicus) with natural estrus or estrus induced with prostaglandin F2α or norgestomet and estradiol valerate. Theriogenology. 49:1998;667-681.
17. Segerson EC, Hansen TR, Libby DW, Randel RD, Getz WR. Ovarian and uterine morphology and function in Anus and Brahman cows. J Anim Sci. 59:1984;1026-1046.
18. Senger PL. The estrus detection problem: new concepts, technologies, and possibilities. J Dairy Sci. 77:1994;2745-2753.
19. Smith RD. Estrus detection. Morrow DA. Current Therapy in Theriogenology. 1986;153-158 WB Saunders Co, Philadelphia.
20. Spitzer JC. Influences of nutrition on reproduction in beef cattle. Morrow DA. Current therapy in Theriogenology. 1986;320-341 WB Saunders Co, Philadelphia.
21. Stevenson JS, Smith MW, Jaeger JR, Corah LR, LeFever DG. Detection of estrus by visual observation and radiotelemetry, estrus-synchronized beef heifers. J Anim Sci. 74:1996;729-735.
22. Vaca LA, Galina CS, Fernandez-Baca S, Escobar FJ, Ramirez B. Oestrous cycles, oestrus and ovulation of the zebu in the Mexican tropics. Vet Rec. 117:1985;434-437.
23. Walker WL, Nebel RL, McGilliard ML. Time of ovulation relative to mounting activity in dairy cattle. J Dairy Sci. 79:1996;1555-1561.
24. Williamson NB, Morris RS, Blood DC, Cannon CM. A study of oestrus behavior and oestrus detection methods in a large commercial dairy herd. I. The relative efficiency of methods of oestrus detection. Vet Rec. 91:1972;50-58.
25. Williamson NB, Morris RS, Blood DC, Cannon, Wright PJ. A study of oestrus behavior and oestrus detection methods in a large commercial dairy herd. II. Oestrus signs and behavior patterns. Vet Rec. 91:1972;58-62.