medigraphic.com

1998, Number 1

<< Back Next >>

Vet Mex 1998; 29 (1)

Reproductive performance of Bos taurus x Bos indicus cows under an artificial insemination program following synchronized or natural estrus in the dry tropical condition of Costa Rica

Baca FJR, Pérez GE, Galina HCS

Language: English/Spanish
References: 30
Page: 67-73
PDF size: 670.35 Kb.


ABSTRACT

To evaluate the reproductive performance of beef cows artificially inseminated in dry tropical conditions in Costa Rica, 3080 records were used related to 8 programs of artificial insemination (AI) of cows of five or more years of age. Of these records, 28 were eliminated due to inconsistent data, so in the end only 3052 records were taken into account to be analyzed. Percentage of synchronized and pregnant cows were calculated. Gestation length was calculated (2367 records) on animals which had insemination and calving dates. Almost 20% (605/3052) of the cows were treated with prostaglandin F2α; out of them, 61% (371/605) was detected in heat between 72 and 168 h post-treatment. Seventy seven percent (101/131) of the treated cows that failed to hold service showed estrus again after 17 and 23 days. Seventy seven point three percent (686/888) prostaglandin F2α non treated cows, that failed to hold service, also showed estrus after 17 and 23 days. Overall conception rate was 80.2% (2448/3052), whereas at first and second services, figures were 60.5% and 67.1%, respectively. In the treated cows that were detected in heat between 3 to 7 days post-treatment, the conception rate was 87% (324/371). In the rest of the group, including treated and non treated cows outside the period of 3 to 7 days, the conception rate was about 81%. The overall number of services per conception was 1.6. Nevertheless, only 77% of the gestations were found to be between 261 and 290 days suggesting that the high conception rates observed in this experiment were not necessarily a consequence of the AI program.


REFERENCES

  1. Plasse D. Uso estratégico de la inseminación artificial en programas genéticos de bovinos de carne en Venezuela. Manual de mejoramiento genético del ganado de carne en los trópicos. Convenio Costarricense-Alemán. San José de Costa Rica: Ed. Heredia, 1992:191-193.

  2. Galina CS, Calderón A, McCloskey M. Detection of signs of estrus in the Charolais cows and its Brahman cross under continuous observation. Theriogenology 1982; 17:485-498.

  3. Peters AR, Riley GM. Milk progesterone profiles and factors affectíng post-partum ovarian activity in beef cows. Anim Prod 1982;34:145-153.

  4. Randel R. Seasonal effect on female reproductive function in the bovine. Theriogenology 1984;21: 170-185.

  5. 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 1985;117:434-437.

  6. Llewelyn CA, Munro CD, Luckins AG, Jordt T, Murray M, Lorenzini E. Behavioural and ovarian changes during the oestrous cycle in the Boran (Bos indicus). Br Vet J 1987;143:75-82

  7. Mattoni M, Mukasa-Mugerwa E, Cecchini G, Sovani S. The reproductive performance of East African Zebu (Bos indicus) cattle in Ethiopia. 1. Estrous cycle length, duration, behaviour and ovulation. Theriogenology 1988;30:961-970.

  8. Galina CS, Arthur GH. Review of cattle reproduction in the tropic. Part 4. Oestrous cycles. Anim Breed Abstr 1990; 58:697-707.

  9. Plasse D, Warnick AC, Koger M. Reproductive behavior of Bos indicus females in a subtropical environment. IV. Length of estrus cycle, duration of estrus, time of ovulation fertilization and embryo survival in grade Brahman heifers. J Anim Sci 1970;30:63-72.

  10. Alberro M. Comparative performance of F1 Friesian x Zebu heifers in Ethiopia. Anim Prod 1983;37:247-252.

  11. Orihuela A, Galina CS, Escobar FJ, Riquelme E. Estrous behaviour following prostaglandin F2α injection in Zebu cattle under continuous observation.Theriogenology 1983; 19:795-809.

  12. Voh A, Odeyipe EO, Buvanendran V, Kumi-Diaka J. Estrus response of indigenous Nigerian Zebu cows after prostaglandin F2 alpha analogue treatment under continuous observations for two seasons. Theriogenology 1987;28:77-99.

  13. Donaldson LE. The development and marketing of estrus synchronization in cattle in Australia using prostaglandins. Theriogenology 1980; 14:391-401.

  14. Román-Ponce H. Potencial de producción de los bovinos en el trópico de México. Ciencia Vet 1981;3:393-431.

  15. Spitzer JC, Wiltbank JN, Lefever DG. Increase beef cow productivity by increasing reproductive performance. Colorado State University Experiment Station Bulletin. General Series. Fort Collins (Col): Universidad de Colorado, 1975;949.

  16. Gonzalez LV, Fuquay JM, Bearden HJ. Insemination management for one-injection prostaglandin F2α synchronization regimen. I. One daily insemination period versus use of the AM/PM rule. Theriogenology 1985;24:495-500.

  17. Barrantes J, Liao A, Rosales A. Atlas climatológico de Costa Rica. San José de Costa Rica: Ministerio de Agricultura y Ganadería, 1985: 15-21.

  18. Landivar C, Galina CS, Duchateau A, Navarro-Fierro R. Fertility trial in Zebu cattle after a natural or controlled estrus with prostaglandin F2 alpha, comparing natural matina with artificial insemination. Theriogenology 1985;23:421-429.

  19. Kiracofe GH, Keay LE, Odde KG. Synchronization of estrus in cyclic beef heifers with the prostaglandin analog alfaprostol. Theriogenology 1985;24:737-745.

  20. Vaca LA, Galina CS, Fernandez-Baca S, Escobar FJ, Ramirez B. Progesterone levels and relationship with the diagnosis of a corpus luteum by rectal palpation during the oestrous cycle in Zebu cows. Theriogenology 1983;10:67-76.

  21. Scaramuzzi RJ, Turnbull KE, Nancarrow CD. Growth of Graaf follicles in cows following luteolysis induced by the prostaglandin F2-alpha analogue, Cloprostenol. Austr J Biol Sci 1980;33:63-69.

  22. Hunter RHF. Fertility in cattle: basic reasons why late insemination must be avoided. Anim Breed Abstr 1985;53:83-87.

  23. Talavera F, Park CS, Williams GL. Relationships among dietary lipid intake, serum cholesterol and ovarian function in Holstein heifers. J Anim Sci 1985;60:1045-1051.

  24. Fetrow J. Calculating selected reproductive indices: recommendations of the American Association of Bovine Practitioners. J Dairy Sci 1990;3:78-90.

  25. Plasse D, Bauer B, Verde O, Aragunde M. Influencias genéticas y ambientales sobre la eficiencia reproductiva de vacas criollas Cebú y sus cruzas. ALPA Memorias 1975 s/f; México (DF). México (DF): Asociación Latinoamericana de Producción Animal, 1975;10:57-73.

  26. Garcia M, Huanca W, Echevarria L. Reproductive performance of pure bred and crossbred Zebu cattle under artificial insemination in the Amazon Tropic. In: Garcia M., editor. On the reproductive efficiency of pure and crossbred Zebu cattle in the Amazon Basin in Peru. Upsala (Sweden): University of Agricultural Sciences, 1988;1-20.

  27. Anta E, Rivera JA, Galina C, Porras A, Zarco L. Análisis de la información publicada en México sobre eficiencia reproductiva de los bovinos. II. Parámetros reproductivos. Vet Méx 1989;20:11-18.

  28. Segura V, Rodríguez O, Segura J. Factores que modifican la fertilidad en hembras Cebú y encastadas con Europeo, bajo un programa de inseminación en el trópico. Téc Pecu Méx 1989;27: 129-136.

  29. Tegegne A, Warnick AC, Mukasa-Mugerwa E, Ketema H. Fertility of Bos indicus x Bos taurus crossbreed cattle after estrus synchronization. Theriogenology 1989;31:361-370.

  30. Plata NI, Spitzer JC, Henricks DM, Thompson CE, Plyler BB, Newby TJ. Endocrine, estrous and pregnancy response to varying dosages of luprostiol in beef cows. Theriogenology 1989;31:801-812.




2020     |     www.medigraphic.com