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Kleemann DO, Kelly JM, Foyster KM, Swinbourne AM, Weaver AC, Walker SK. Effects of short and long - term nutrition and progesterone supplementation on the success of fixed - time artificial insemination in the ewe. Anim Reprod Sci 2024; 265:107477. [PMID: 38663150 DOI: 10.1016/j.anireprosci.2024.107477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/10/2024] [Accepted: 04/17/2024] [Indexed: 05/24/2024]
Abstract
The success of fixed - time artificial insemination (AI) in the ewe is variable due to poor synchrony of estrus. We examined the effects of long-term nutrition (LTN; low, medium, high - 6 months), short-term nutrition (STN; 1.0 M, 1.5 M - 14 days) and progesterone supplementation (P; single pessary, replacement on Day 9) on synchrony and reproductive outcomes. High LTN advanced (P < 0.05) estrus, increased (P = 0.06) pregnancy (range 71.1 - 81.1%) and improved (P < 0.01) litter size (range 1.30 - 1.50). STN increased (P < 0.05) pregnancy (79.0 versus 72.3%) but not litter size or timing of estrus. A LTN x STN interaction (P < 0.01) for time of estrus indicates that the effects of LTN were moderated by STN depending on the level of LTN. Pessary replacement delayed (P < 0.05) the onset of estrus, improved synchrony but did not affect pregnancy or litter size. High LTN increased (P < 0.05) the number of large (≥ 3.8 mm) and medium - size follicles (2.0 - 3.7 mm) but the diameter of large follicles tended to be reduced (P = 0.08) on Day 12. STN did not affect follicle number or size whilst P reduced (P < 0.05) the diameter of large follicles on Day 12 (4.83 versus 5.10 mm) and increased the number of medium - size follicles (3.56 versus 2.74 mm). In conclusion, both LTN and STN are major sources of variability in AI programs whilst pessary replacement has potential to reduce variability.
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Affiliation(s)
- David O Kleemann
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Jennifer M Kelly
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Kimberley M Foyster
- School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Roseworthy, South Australia 5371, Australia.
| | - Alyce M Swinbourne
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Alice C Weaver
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Simon K Walker
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
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Swelum AAA, Saadeldin IM, Moumen AF, Ali MA, Alowaimer AN. Efficacy of controlled internal drug release (CIDR) treatment durations on the reproductive performance, hormone profiles, and economic profit of Awassi ewes. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.07.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Swelum AAA, Saadeldin IM, Moumen AF, Ali MA, Ba-Awadh H, Alowaimer AN. Efficacy of using previously used controlled internal drug release (CIDR) insert on the reproductive performance, hormone profiles and economic measures of sheep. Reprod Domest Anim 2018; 53:1114-1122. [PMID: 29892981 DOI: 10.1111/rda.13212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 04/13/2018] [Accepted: 04/18/2018] [Indexed: 12/01/2022]
Abstract
This study was conducted using 120 multiparous Awassi ewes during the breeding season to compare the effects of using previously used controlled internal drug release (CIDR) on the hormone profiles, reproductive performance and economic measures of ewes. Ewes were randomized to receive one of five previously used CIDR (previously used for 6, 12, 18, 24 or 30 days) or the new CIDR as a control for 6 days (CIDR6, CIDR12, CIDR18, CIDR24, CIDR30, and CIDR0 [control], respectively). Blood samples were collected on four occasions, at the time of CIDR insertion, after 3 days of insertion, and at the time of withdrawal and insemination. Serum estradiol (E2) and progesterone (P4) concentrations were measured. Timed insemination was performed 48 hr post-CIDR withdrawal. Pregnancy was diagnosed by ultrasonography 23 days after insemination and confirmed on day 35. The heat detection rate was significantly (p < 0.05) higher in the CIDR0 and CIDR6 groups than in the CIDR18 and CIDR30 groups. The total pregnancy rate and fecundity were significantly (p < 0.05) higher in the CIDR6 group than in other groups. P4 level was significantly (p < 0.05) higher in the CIDR0 group than in the CIDR30 group at the time of removal. At each time point, the E2 level was significantly (p < 0.05) higher in the CIDR6 group than at the other groups. The total variable cost, total cost, return and net profit were higher in the CIDR6 and CIDR0 groups than in the other groups. In conclusion, although previously used CIDRs are efficient at synchronizing oestrus in ewes, the duration of previously usage significantly affected the reproductive parameters and economic profit. CIDRs previously used for 6 days and new CIDRs provided the highest fertility and fecundity rates, besides return and net profit. Economically, it is not advisable to use CIDRs that previously used for 12 days or more.
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Affiliation(s)
- Ayman Abdel-Aziz Swelum
- Department of Animal production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt
| | - Islam M Saadeldin
- Department of Animal production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Abdullah F Moumen
- Department of Animal production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed A Ali
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Zagazig University, Sharkia, Egypt
| | - Hany Ba-Awadh
- Department of Animal production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah N Alowaimer
- Department of Animal production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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Dias L, Sales J, Viau P, Barros M, Nicolau S, Simões L, Alves N, Alonso M, Valentim R, Oliveira C. Although it induces synchronized ovulation, hCG reduces the fertility of Santa Ines ewes submitted to TAI. ARQ BRAS MED VET ZOO 2018. [DOI: 10.1590/1678-4162-9679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
ABSTRACT The aim of this study was to evaluate hCG treatment on ovarian response and on pregnancy rate using a 9-day oestrus synchronization protocol in Santa Ines ewes. On a random oestrus cycle day, ewes received an intravaginal progesterone device (Primer-PR®, Tecnopec, Brazil). Nine days later (Day 9), 30µg of d-cloprostenol (Prolise®, Syntex, Argentina) and 250IU of eCG (Folligon®, Intervet, Brazil) were administered and the progesterone device was removed. This moment, the ewes were randomly assigned on two groups: Control Group and hCG Group. In the hCG Group, the ewes received 500IU of hCG (Vetecor®, Hertape-Calier, Spain) 24h after device removal. In the Control Group, the ewes did not receive any ovulation inductor. Control and hCG Groups ewes were inseminated 60h and 48h after device removal, respectively. There was no difference between the groups regarding the first ovulatory follicle diameter and the second ovulatory follicle. hCG Group ewes had shorter interval between device removal and ovulation (Control: 79.9±15.4h and hCG: 54.7±4.9h; P=0.001) and more synchronized ovulations. However, the treatment with hCG decreased the pregnancy rate after TAI (P=0,009). In conclusion, hCG administration improves ovulatory synchronisation, but causes a decrease in the pregnancy rate.
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Affiliation(s)
- L.M.K. Dias
- Universidade de São Paulo, Brazil; Universidade de Sorocaba, Brazil
| | | | - P. Viau
- Universidade de São Paulo, Brazil
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Oliveira M, Ayres H, Oliveira L, Barros F, Oba E, Bicudo S, Bartlewski P, Fonseca J, Vicente W. Effects of season and ovarian status on the outcome of long-term progesterone-based estrus synchronization protocols and ovulatory follicle development in Santa Inês ewes under subtropical conditions. Theriogenology 2016; 85:452-60. [DOI: 10.1016/j.theriogenology.2015.09.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 09/08/2015] [Accepted: 09/09/2015] [Indexed: 01/01/2023]
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Wei S, Chen S, Wei B, Liu Z, Bai T, Lin J. Estrus synchronization schemes and application efficacies in anestrus lanzhou fat-tailed ewes. JOURNAL OF APPLIED ANIMAL RESEARCH 2015. [DOI: 10.1080/09712119.2015.1091350] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Swelum AAA, Alowaimer AN, Abouheif MA. Use of fluorogestone acetate sponges or controlled internal drug release for estrus synchronization in ewes: Effects of hormonal profiles and reproductive performance. Theriogenology 2015; 84:498-503. [DOI: 10.1016/j.theriogenology.2015.03.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 11/28/2022]
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Dias LMK, de Barros MBP, Viau P, Sales JNDS, Valentim R, dos Santos FF, da Cunha MC, Marino CT, de Oliveira CA. Effect of a new device for sustained progesterone release on the progesterone concentration, ovarian follicular diameter, time of ovulation and pregnancy rate of ewes. Anim Reprod Sci 2015; 155:56-63. [PMID: 25735830 DOI: 10.1016/j.anireprosci.2015.01.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 01/29/2015] [Accepted: 01/30/2015] [Indexed: 10/24/2022]
Abstract
This study evaluated the effectiveness of a new progesterone intravaginal device (DPR) in ewes through four experiments: Experiment 1 compared the circulating progesterone concentration of ovariectomized ewes that received either a new or a re-used DPR. Experiment 2 compared the progesterone concentration between DPR-estrous-synchronized ewes and naturally estrous-cycling ewes. Experiment 3 evaluated the effect of new and re-used DPRs on ovarian follicular dynamics and time of ovulation of estrous cycling ewes. Experiment 4 compared the pregnancy rate after the use of a DPR and Controlled Internal Drug Releasing Device (CIDR). The mean concentration of progesterone released by the DPR device during its first use (New Group: 5.1 ± 0.5 ng/ml) was greater than that during the second use (Re-used Group: 2.4 ± 0.3 ng/ml). There was no difference between the animals that received DPR devices for first and second use in terms of ovulatory follicle diameter, follicular wave emergence day for ovulatory follicle and period of ovulatory wave of ovarian follicular development. However, there was a significant difference between groups regarding the time between DPR device removal and first ovulation (New Group: 71.7 ± 2.5h and Re-Used Group: 63.9 ± 2.7h). Pregnancy rates were similar between ewes with DPR and CIDR devices. It was concluded that DPR is effective in increasing and maintaining progesterone concentrations, controlling follicular dynamics, promoting synchronized times of ovulation from healthy follicles, promoting development of a competent corpus luteum and when used results in pregnancy rates similar to that with use of the CIDR.
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Affiliation(s)
| | | | - Priscila Viau
- Animal Reproduction Department, FMVZ/USP, CEP 05508-000, São Paulo-SP, Brazil
| | | | - Renato Valentim
- Animal Reproduction Department, FMVZ/USP, CEP 05508-000, São Paulo-SP, Brazil
| | | | | | - Carolina Tobias Marino
- Brazilian Agricultural Research Corporation (Embrapa) - Beef Cattle, Campo Grande-MS, Brazil
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Sirjani MA, Kohram H, Shahir MH. Effects of eCG injection combined with FSH and GnRH treatment on the lambing rate in synchronized Afshari ewes. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2012.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pinna A, Brandão F, Cavalcanti A, Borges A, Souza J, Fonseca J. Reproductive parameters of Santa Inês ewes submitted to short-term treatment with re-used progesterone devices. ARQ BRAS MED VET ZOO 2012. [DOI: 10.1590/s0102-09352012000200012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to verify the efficacy of reusing intravaginal progesterone (P4) devices on the reproductive parameters in Santa Inês ewes. Females received intravaginal P4 devices for their first, second or third use for five days plus 300 IU eCG IM and 5mg dinoprost laterovulvar 24h before device removal. Blood was collected at different moments. Transrectal ultrasonography was performed from device removal to ovulation. Part of the ewes were submitted to artificial insemination by laparoscopy (IAL - n=55) with fresh semen, whereas the rest were bred by fertile rams (n=41). On the initial 18 h, ewes that received devices for the first time showed higher P4 concentrations (5.1±1.8 vs 3.5±1.4 vs 2.4±1.1 - P<0.05). However, after the first 48h no difference was observed among all treatments and P4 supraluteal concentrations were detected in all ewes upon device removal. Estrous response, interval from device removal to estrus, rate of ovulating animals, number of ovulations, time from device removal to ovulation and average conception rates after IAL or natural mating were similar among all 3 groups. Intravaginal progesterone devices can be used up to three times without altering reproductive parameters in Santa Inês ewes.
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Santos IW, Binsfeld LC, Weiss RR, Kozicki LE. Fertility Rates of Ewes Treated with Medroxyprogesterone and Injected with Equine Chorionic Gonadotropin plus Human Chorionic Gonadotropin in Anoestrous Season. Vet Med Int 2010; 2010. [PMID: 20953333 PMCID: PMC2953209 DOI: 10.4061/2010/978520] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 07/11/2010] [Accepted: 09/03/2010] [Indexed: 11/25/2022] Open
Abstract
The aim of the present paper was to investigate the efficiency of the equine chorionic gonadotropin (eCG) plus human chorionic gonadotropin (hCG) associated with medroxyprogesterone acetate (MAP) to estrous ewes synchronization. Ninety Texel ewes were investigated during seasonal anoestrous. The ewes received intravaginal sponges containing MAP (60 mg) for nine days. At the time of sponges' withdrawal, the ewes were divided into three groups (G): (1) receiving 2 mL of saline i.m. (n = 30), (2) receiving eCG 400 IU i.m. (n = 30), and (3) receiving eCG 400 IU plus hCG 200 IU i.m. (n = 30). Twelve h after sponges' removal, teaser rams were used to estrus check and remained with the ewes for 96 h. The artificial insemination was made with fresh semen 10 h after estrus detection. The effect of the treatment was not significant for the estrous rates among the groups: 73%, 90%, and 86%, respectively. The main effect was observed in the pregnancy and lambing rates among the groups: 70%, 86%, 56%, and 80%, 120%, 56%, respectively. Based on these results from our study, the use of the MAP—eCG is the best choice to improve the fertility rate on ewes.
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Affiliation(s)
- I W Santos
- Animal Reproduction, Faculty of Veterinary Medicine, Federal University of Paraná State, Palotina, Brazil
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FUKUI Y, KOHNO H, OKABE K, KATSUKI S, YOSHIZAWA M, TOGARI T, WATANABE H. Factors Affecting the Fertility of Ewes after Intrauterine Insemination with Frozen-Thawed Semen During the Non-Breeding Season. J Reprod Dev 2010; 56:460-6. [DOI: 10.1262/jrd.10-015t] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Yutaka FUKUI
- Laboratory of Animal Reproduction, Obihiro University of Agriculture and Veterinary Medicine
| | | | | | - Sara KATSUKI
- Laboratory of Animal Reproduction, Obihiro University of Agriculture and Veterinary Medicine
| | - Masahiro YOSHIZAWA
- Laboratory of Animal Reproduction, Obihiro University of Agriculture and Veterinary Medicine
| | | | - Hiroyuki WATANABE
- Laboratory of Animal Reproduction, Obihiro University of Agriculture and Veterinary Medicine
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ROWE JD, TELL LA, WAGNER DC. Animal safety report on intravaginal progesterone controlled internal drug releasing devices in sheep and goats. J Vet Pharmacol Ther 2009; 32:303-5. [DOI: 10.1111/j.1365-2885.2008.01029.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Titi HH, Kridli RT, Alnimer MA. Estrus synchronization in sheep and goats using combinations of GnRH, progestagen and prostaglandin F2alpha. Reprod Domest Anim 2008; 45:594-9. [PMID: 19055549 DOI: 10.1111/j.1439-0531.2008.01309.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The objective of this experiment was to evaluate the effect of GnRH, progestagen and prostaglandin F(2alpha) on estrus synchronization in sheep and goats. Sixty Awassi ewes and 53 Damascus does were used in the study. The experiment started at the beginning of the breeding season (June/July). The same treatments were applied to sheep and goats as follows: no treatment (CON), 14-day progestagen sponges and 600 IU equine chorionic gonadotropin (S), gonadotropin releasing hormone followed 5 days later by prostaglandin F(2alpha) (GP) and gonadotropin releasing hormone, progestagen sponges for 5 days and prostaglandin F(2alpha) on the day of sponge removal (GSP). None of the ewes in the S group lambed from mating during the induced cycle. A greater lambing rate (p < 0.05) was observed in the GSP group compared with the CON and S groups while the GP group was intermediate. The number of lambs born per lambed ewe was similar among the CON, GP and GSP groups. However, the number of lambs per exposed ewe was greater (p < 0.05) in the GSP than the remaining groups. The induced cycle kidding rate was 77% for all treatments combined. Similar kidding rate were observed among treatments. The numbers of kids born per kidded and exposed doe from mating during the induced estrus were also similar among treatments. Greater numbers of multiple births were observed in the GP and GSP than in the S group. In conclusion, a combination of GnRH, progestagen sponges and PGF(2alpha) can be effective in synchronizing estrus and improving fecundity in sheep and goats. Although the use of GnRH-PGF(2alpha) was effective, the addition of progestagen sponges at the time of GnRH administration appeared to improve reproductive parameters.
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Affiliation(s)
- H H Titi
- Department of Animal Production, Faculty of Agriculture, University of Jordan, Amman
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