+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Experiments involving oestrus synchronization, induction of ovulation and fixed-time AI

Experiments involving oestrus synchronization, induction of ovulation and fixed-time AI

Veterinaria Argentina 1(4): 322-327

105 Bos indicus X Bos taurus cows and heifers were treated as follows: (1) given 2 injections, each of 500 mu g cloprostenol (PGF2 alpha ), with an interval of 11 days between injections, and were inseminated 72 + 96 h after treatment; (2) given 2 cloprostenol injections + 0.01 mg of an ovulation-inducing hormone (Buserelin; GnRH analogue) at insemination, 74 h after cloprostenol treatment; (3) treated as for group 2, but were inseminated twice, 72 + 96 h after cloprostenol treatment; (4) allowed to run with bulls for 30 days (controls). In the 3 experimental groups, the 17- to 25-day NR rate was 64.0, 79.7 and 73.91% resp., and the CR to 1st insemination 32.0, 37.5 and 52.17%. Overall CR was 48.0, 45.83 and 69.57% resp. in the 3 experimental groups vs. 60.61% for the controls, and the number of inseminations per pregnancy averaged 4.92, 2.64 and 3.25 vs. 1.45.

(PDF emailed within 1 workday: $29.90)

Accession: 001364439

Download citation: RISBibTeXText

Related references

Induction/synchronization of oestrus and ovulation in dairy goats with different short term treatments and fixed time intrauterine or exocervical insemination system. Animal Reproduction Science 126(3-4): 187-194, 2011

Synchronization of oestrus and ovulation by short time combined FGA, PGF(2α), GnRH, eCG treatments for natural service or AI fixed-time. Animal Reproduction Science 123(1-2): 32-39, 2011

Synchronization of oestrus and ovulation in sows not conceiving in a scheduled fixed-time insemination programme. Animal Reproduction Science 97(1/2): 84-93, 2007

Synchronization of oestrus and time of induction of ovulation in postpartum buffalo cows. ASSET Series A: Agriculture and Environment 1(1): 71-76, 2001

Duration of oestrus and time of ovulation in crossbred Friesian X zebu heifers with or without synchronization of oestrus. 9th International Congress on Animal Reproduction and Artificial Insemination, 16th-20th June 1980 III Symposia free communications: 37, 1980

The induction and synchronization of oestrus and ovulation in the buffalo. Annali della Facolta di Medicina Veterinaria, Universita di Parma 21: 73-79, 2001

Ovulation, embryo development and incidence of oocyte degeneration in sows at spontaneous oestrus and following the synchronization of oestrus and ovulation. Monatshefte fur Veterinarmedizin 12(44): 422-424, 1989

Synchronization of oestrus, ovulation induction and synchronized farrowing in sows. Tierarztliche Umschau 54(1): 33-36, 38, 1999

Time of ovulation in the Karakul ewe following synchronization of oestrus. South African Journal of Animal Science 3(1): 13-17, 1973

A note on oestrus synchronization of gilts and time of ovulation. Ciencia y Tecnica en la Agricultura, Ganado Porcino 13(1): 29-35, 1990

Induction and synchronization of oestrus and ovulation in ewes during anoestrus (Mar.-Apr.) in a commercial flock, using Chronogest. Memoria III Congreso Nacional de Produccion Ovina: 167-169, 1990

Duration of oestrus and time of ovulation in sheep: effect of synchronization, season and ram. Agroanimalta. 2: 131-137, 1970

Experiments on oestrus induction and synchronization in cattle. Schweizer Archiv fur Tierheilkunde 121(5): 239-249, 1979

Oestrus synchronization, ovulation induction and fertility in hairless ewes treated with equine chorionic gonadotrophin. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 53(5): 618-623, 2001

The time of ovulation after the synchronization of oestrus in Merino ewes with medroxy-progesterone acetate. Proc. S. Afr. Soc. Anim. Prod, 9: 177-178, 1970