scholarly journals Tampilan Kesuburan Sapi Bali Induk yang Dikawinkan Langsung dengan Pejantan dan Inseminasi Buatan Ketika Estrus Hasil Sinkronisasi Menggunakan PGF2α

2019 ◽  
Vol 6 (2) ◽  
pp. 267
Author(s):  
Petrus Kune ◽  
Rini Widyastuti ◽  
Takdir Saili
Keyword(s):  
Corpus Luteum ◽  
Artificial Insemination ◽  
Conception Rate ◽  
Estrus Cycle ◽  
Estrus Detection ◽  
Natural Mating

ABSTRAKAngka kebuntingan sapi bali yang mengalami sinkronisasi estrus dan diinseminasi pada saat estrus muncul masih di bawah 50%. Akan tetapi, persentrasi gejala estrus yang muncul setelah sinkronisasi selalu di atas 85%.  Oleh karena itu, penelitian untuk mengevaluasi tingkat kebuntingan sapi bali setelah sinkronisasi, deteksi estrus dan perkawinan baik kawin alam maupun inseminasi telah dilakukan dengan menggunakan 67 ekor sapi bali induk umur 4-6 tahun yang mempunyai corpus luteum periodik. Penelitian dilakukan sebanyak empat tahap dengan masing-masing tahap selama 22 hari. Semua sapi percobaan dipelihara secara intensif pada 5 pedok yang terpisah dan setiap pedok ditempatkan 4 ekor sapi bali induk dan seekor pejantan. Hormon estron digunakan untuk sinkronisasi induk sapi percobaan dengan dosis 5 ml/ekor secara intra muscular, selanjutnya dilakukan induk sapi dikawinkan pada hari pertama sampai kelima setelah sinkronisasi dan deteksi estrus. Deteksi estrus diperpanjang sampai dengan akhir siklus estrus. Hasil penelitian menunjukkan bahwa 91,05% sapi percobaan mengalami estrus setelah sinkronisasi sedangkan gejala estrus muncul mulai hari pertama sampai hari kelima (rata-rata hari ke 3) setelah sinkronisasi.  Angka kebuntingan yang diperoleh rata-rata 27,87%.  Estrus alami (terjadi setelah estrus sinkronisasi) mulai muncul setelah 6-13 hari (rata-rata 8 hari) estrus hasil sinkronisasi muncul.Kata Kunci: estrus, kebuntingan, PGF2α  Therefore, the experiment related to evaluation of conception rate of bali cow following synchronization, estrus detection and natural mating or artificial insemination was conducted using 67 bali cow aged 4-6 y.o. that has periodic corpus luteum. The experiment was conducted in four sequent periods (22 days each).  All animal was kept intensively in 5 separate paddocks where each paddock was allocated five animals (4 cows+1 bull).  Estron contained PGF2α was injected intramuscular (5 ml/head) to all cows for synchronization while mating (natural mating and artificial insemination) was conducted during 1-5 days following synchronization and estrus detection.  Estrus detection was prolonged up to the end of estrus cycle. The results showed that 91.05% of synchronized cow was estrus, while the estrus sign occurred on day 1-5 (day 3 in average) after synchronization. Conception rate gained in this experiment was 27.87%.  Natural estrus that occurred following synchronized estrus varied between 6-13 days (8 days in average) after synchronized estrus occurred.Keywords: conception, estrus, PGF2α, synchronization  

scholarly journals Sperm concentration on the intrauterine artificial insemination in swine

2009 ◽  
Vol 33 (6) ◽  
pp. 1671-1674
Author(s):  
Joana Miller ◽  
Ana Luísa Neves Alvarenga ◽  
Luis David Solis Murgas ◽  
Adriana Cristina da Silva ◽  
Ricardo Sales Araújo ◽  
...  
Keyword(s):  
Litter Size ◽  
Reproductive Performance ◽  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Sperm Concentration ◽  
Conception Rate ◽  
Cervical Canal ◽  
Significant Difference ◽  
Estrus Detection ◽  
Farrowing Rate

The aim of this work was to evaluate the efficiency of the intrauterine insemination (IUI) in swine, considering the conception rate, farrowing rate, litter size (alive born pigs). For the IUI, the females had been insemination at 24 and 48 hours after the estrus detection, and the inseminating doses of 500 million, 1 billion, 1.5 billion and 2 billion spermatozoa in 20 mL extender had been used. The procedure of catheter insertion through the cervical canal was successfully performed in 97.9% of the females. The conception rate was 6.3% in the IUI. The farrowing rate in IUI was 87.2% but the farrowing rate was 100% for the sperm concentration of 500 million. Regarding the number of born pigs and alive born pigs observed in females inseminated with IUI, no significant difference was observed (p > 0.05). The concentration of 500 x 10(6) spermatozoa in 20 mL extender in the intrauterine insemination resulted in an optimal reproductive performance.

The incidence of elevated progestrone at the time of insemination in Suffolk ewes bred in August

1996 ◽  
Vol 1996 ◽  
pp. 188-188
Author(s):  
W S Dingwall ◽  
W A C McKelvey ◽  
F E Gebbie ◽  
J J Robinson
Keyword(s):  
Corpus Luteum ◽  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Causal Factor ◽  
Conception Rate ◽  
The Uk

The development of laparoscopic intrauterine insemination for sheep has been essential for the implementation of national Sire Reference Schemes in the UK (McKelvey and Simm, 1995). Whilst conception rate to artificial insemination (AI) has averaged 60-70% in most participating flocks, a number of flocks have experienced a proportion of their ewes returning to anoestrus following AI. This phenomenon restricts the implementation of sire reference schemes and it has been proposed that die causal factor could be the presence of a persistent corpus luteum at the time of insemination.

The incidence of elevated progestrone at the time of insemination in Suffolk ewes bred in August

1996 ◽  
Vol 1996 ◽  
pp. 188-188
Author(s):  
W S Dingwall ◽  
W A C McKelvey ◽  
F E Gebbie ◽  
J J Robinson
Keyword(s):  
Corpus Luteum ◽  
Artificial Insemination ◽  
Intrauterine Insemination ◽  
Causal Factor ◽  
Conception Rate ◽  
The Uk

The development of laparoscopic intrauterine insemination for sheep has been essential for the implementation of national Sire Reference Schemes in the UK (McKelvey and Simm, 1995). Whilst conception rate to artificial insemination (AI) has averaged 60-70% in most participating flocks, a number of flocks have experienced a proportion of their ewes returning to anoestrus following AI. This phenomenon restricts the implementation of sire reference schemes and it has been proposed that die causal factor could be the presence of a persistent corpus luteum at the time of insemination.

scholarly journals Inferences of body energy reserves on conception rate of suckled Zebu beef cows subjected to timed artificial insemination followed by natural mating

2014 ◽  
Vol 82 (4) ◽  
pp. 529-536 ◽  
Author(s):  
H. Ayres ◽  
R.M. Ferreira ◽  
J.R.S. Torres-Júnior ◽  
C.G.B. Demétrio ◽  
M.F. Sá Filho ◽  
...  
Keyword(s):  
Artificial Insemination ◽  
Beef Cows ◽  
Conception Rate ◽  
Energy Reserves ◽  
Timed Artificial Insemination ◽  
Natural Mating ◽  
Body Energy

scholarly journals PSIII-9 Differences in Conception Rate across Breeding Protocols in Dairy Cattle

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 234-234
Author(s):  
Colin Lynch ◽  
Gerson Oliveira ◽  
Flavio Schenkel ◽  
Christine F Baes
Keyword(s):  
Dairy Cows ◽  
Artificial Insemination ◽  
Hormone Treatment ◽  
Conception Rate ◽  
Activity Monitors ◽  
The Past ◽  
Wide Range ◽  
Estrus Detection ◽  
Conception Rates ◽  
Commercial Farms

Abstract Fertility performance success on dairy farms starts with estrus detection, especially for artificial insemination programs. Detection of estrus has become more difficult over the years due to a decrease in estrus expression in high-producing dairy cows, with up to 60% of ovulations accompanied by no standing mount. In order to alleviate the pressure of estrus detection, management technologies have been developed, including automated detectors of standing heat, activity monitors, automated in-line systems measuring milk progesterone, and hormonal synchronization protocols (FTAI). To gauge the effectiveness of such technologies, records from 647,940 cows across 1,166 herds over the past ten years (total of 3,466,593 breeding records) from herd management software were analyzed. Across all herds, there were 5,804 breeding protocols, of which 2,046 were unique. Due to the wide range of breeding protocols, records were classified as HORMONES, FTAI, HEAT DETECTION and OTHERS. Breeding protocols were classified as HORMONES if they included any hormone treatment. FTAI was a stricter subset of HORMONES, which included only clear FTAI protocols. Protocols were classified as HEAT DETECTION if they were a clear heat detection protocol, with all remaining protocols classified as OTHERS. These classifications resulted in 3,258 protocols classified as HORMONES, of which 2,002 were FTAI, while a further 1,840 were classified as HEAT DETECTION. The remaining 706 codes were classified as OTHER and removed from this study. These classifications provided an initial overview of breeding methods conception rates, with results indicating significant differences (P < 0.05) between all protocol groups, as outlined in Table 1. Further analysis will be completed to indicate conception rates from the most commonly used breeding protocols across each of the protocol groups within the 1,192 herds. This work will help provide a better understanding of the expected conception rate of various management technologies on commercial farms.

scholarly journals Replacement of the First GnRH Administration in the Ovsynch Protocol by Selecting Cows According to the Stage of Follicular Development

2006 ◽  
Vol 75 (1) ◽  
pp. 65-72 ◽  
Author(s):  
P. Hartman ◽  
J. Zajíc ◽  
S. Čech ◽  
Z. Jan ◽  
R. Doležel
Keyword(s):  
Corpus Luteum ◽  
Artificial Insemination ◽  
High Probability ◽  
Follicular Development ◽  
Conception Rate ◽  
Preovulatory Follicle ◽  
Dominant Follicle ◽  
Stage Of Development ◽  
Ovulatory Follicle ◽  
Conception Rates

The aim of the study was to replace the first GnRH in the Ovsynch protocol by selecting cows bearing corpus luteum as well as follicles in a defined stage of development at PGF2α administration. Additionally, various terms of GnRH administration after PGF2α were tested. Seventy five non-pregnant cows bearing corpus luteum were divided into groups according to the phase of follicular development on D 0 (day of PGF2α administration)-growth (GR, follicles 3.0-7.9 mm in diameter), early dominance (ED, dominant follicle 8.0-14.9 mm) and late dominance (LD, dominant follicle 15.0-23.0 mm). In addition, the cows were divided into groups according to the terms of GnRH administration (24, 48 or 72 h after PGF2α). In this way, groups GR 48 (n = 5), GR 72 (n = 6), ED 24 (n = 10), ED 48 (n = 12), ED 72 (n = 12), LD 24 (n = 10), LD 48 (n = 10) and LD 72 (n = 10) were established. Growth of ovulatory follicle, term of ovulation, insemination and conception rates as well as relation of the size of preovulatory follicle (day of ovulation) to the size of following corpus luteum (day 14) were evaluated. The highest level of synchronization of ovulation (100% on D 3) as well as conception rate (50%) was achieved in group ED 48. This protocol gives an opportunity of timing artificial insemination to 18-24 hours after GnRH administration, as ovulation occurs with a high probability within 24 - 48 hours after GnRH administration.

scholarly journals PSX-28 Using estrus detection patches or a ram wearing a marking harness to monitor estrus in synchronized hair sheep ewes

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 460-460
Author(s):  
Robert W Godfrey ◽  
Sue A Lakos
Keyword(s):  
Artificial Insemination ◽  
Post Partum ◽  
Hair Sheep ◽  
Cumulative Percentage ◽  
Estrous Synchronization ◽  
Estrus Detection ◽  
Visual Observations

Abstract Determining when a ewe is in estrus is important when using estrous synchronization and artificial insemination in sheep. This study was conducted to compare the efficacy of estrus detection patches (Estrotect™) and rams wearing marking harnesses for monitoring estrus in synchronized hair sheep ewes. St. Croix White (STX) ewes (3.5 ± 0.3 y of age, 89.7 ± 2.2 d post-partum) were synchronized using progesterone releasing inserts (Eazi-Breed™ CIDR) for 12 d. On the day of CIDR removal (d 1) ewes were administered prostaglandin (Lutalyse®; 15 mg i.m.) and placed with fertile STX rams in 0.55 ha pastures. One group of ewes (n =10; MH) was placed with a ram wearing a marking harness and a second group (n = 16; EP) had estrus detection patches placed on their rumps before being placed with a ram without a harness. Estrus detection was conducted using visual observations twice a day through d 7. A ewe was considered to be in estrus when crayon marks were observed on the rump or the patch was activated, based on product guidelines. Cumulative percentage of ewes in estrus was analyzed using the CATMOD procedure with treatment, day and the interaction in the model. All patches stayed in place on the EP ewes through d 7. By d 4 90% of MH ewes and 75% of EP ewes had been observed in estrus (P < 0.05). By d 7 90% of MH ewes and 81.25% of EP ewes had been observed in estrus (P < 0.05). With costs of $1.33 per patch or $29.33 for one harness and crayon the patches may be more economical when dealing with up to 21 ewes per ram. Estrus detection patches can be used on hair sheep ewes to detect estrus just as effectively as a ram with a marking harness.

scholarly journals Luteogenesis and Embryo Implantation Are Enhanced by Exogenous hCG in Goats Subjected to an Out-of-Season Fixed-Time Artificial Insemination Protocol

Biology ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 429
Author(s):  
Jorge A. Bustamante-Andrade ◽  
César A. Meza-Herrera ◽  
Rafael Rodríguez-Martínez ◽  
Zurisaday Santos-Jimenez ◽  
Oscar Ángel-García ◽  
...  
Keyword(s):  
Corpus Luteum ◽  
Artificial Insemination ◽  
Body Condition Score ◽  
Embryo Implantation ◽  
Implantation Rate ◽  
Fixed Time ◽  
Efficiency Index ◽  
Control Group ◽  
Condition Score ◽  
Interesting Approach

The aim of this study was to evaluate the possible effect of two doses of hCG (100 and 300 IU) applied at two different times (7 and 14 d) after a fixed-time artificial insemination protocol (FTAI) upon some variables involved in the embryonic implantation rate in goats during the natural deep anestrous season (April, 25° north). The experimental units considered crossbred, multiparous, anovulatory goats (n = 69, Alpine, Saanen, Nubian x Criollo), with average body weight (43.6 ± 5.7 kg) and body condition score (1.86 ± 0.28 units) located in northern–semiarid Mexico (25° N, 103° W). Once the goat’s anestrus status was confirmed, goats were subjected to an estrus induction protocol. Upon estrus induction confirmation, goats (n = 61) were subjected to a FTAI procedure. Immediately after the FTAI, the goats were randomly distributed to five experimental groups: (1). G100-7 (n = 13) 100 IU, hCG 7 d post-FTAI, (2). G100-14 (n = 12) 100 IU hCG, 14 d post-FTAI, (3). G300-7 (n = 12) 300 IU, hCG, 7 d post-FTAI, (4). G300-14 (n = 12) 300 IU hCG 14 d post-FTAI, and (5). Control group, CONT (n = 12) 0.5 mL saline, 7 and 14 d post-FTAI. The response variables conception rate (39.36 ± 0.23), fertility rate (27.96%), prolificacy rate (1.1 ± 0.29 kids), ovulation rate (0.74 ± 0.20 corpus luteum) corpus luteum diameter (10.15 ± 0.59 mm), embryo number (1.58 ± 0.20), and embryo implantation rate (48.96%), did not differ between treatments. However, while the variables fecundity rate (67%), embryo efficiency index-1 (33.99 ± 0.20%), and embryo efficiency index-2 (27.94 ± 0.30%) were favored by the G300-14 treatment, the corpus luteum area was favored (p < 0.05) by both G300-7 (113.30 ± 0.19 mm2) and G300-14 (103.04 ± 0.17 mm2). Such reproductive strategy emerges as an interesting approach, not only to enhance the out-of-season reproductive outcomes, but also to boost one of the main rulers defining the global reproductive efficiency of a heard, namely, the embryo implantation efficiency.

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