1
|
Xu Q, Wang C, Wang L, Feng R, Guo Y, Feng S, Zhang L, Zheng Z, Su G, Fan L, Bian C, Zhang L, Su X. Correlation analysis of serum reproductive hormones and metabolites during multiple ovulation in sheep. BMC Vet Res 2022; 18:290. [PMID: 35883090 PMCID: PMC9317590 DOI: 10.1186/s12917-022-03387-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The establishment of non-invasive diagnostic method for multiple ovulation prediction is helpful to improve the efficiency of multiple ovulation. The blood hormones and metabolites would be suitable indexes for this subject. METHODS In this study, 86 estrus ewes (65 of induced estrus (IE) and 21 of spontaneous estrus (SE)) were selected and the blood samples were collected at the day before follicle-stimulating hormone (FSH) injection (1st) and before artificial insemination (2nd). The serum reproductive hormones ofFSH, luteinizing hormone (LH), 17β-Estradiol (E2), progesterone (P4) and anti-Mullerian hormone (AMH) were measured through enzyme linked immunosorbent assay (ELISA) and the untargeted metabolomics analysis was processed through LC-MS/MS. The embryos were collected after 6.5 days of artificial insemination. RESULTS In total, 975 and 406 embryos were collected in IE and SE group, respectively. The analysis of reproductive hormones showed that concentrations of FSH, E2 and AMH were positive correlated with the embryo yield while concentrations of LH and P4 were negative correlated in both group at 1st detection. At 2nd detection, the trends of reproductive hormones were similar with 1st except P4, which was positive correlated with embryo yield. The metabolomics analysis showed that 1158 metabolites (721 in positive iron mode and 437 in negative iron mode) were detected and 617 were annotated. In 1st comparation of high and low embryonic yield populations, 56 and 53 differential metabolites were identified in IE and SE group, respectively. The phosphatidyl choline (PC) (19:0/20:5) and PC (18:2/18:3) were shared in two groups. In 2nd comparation, 48 and 49 differential metabolites were identified in IE and SE group, respectively. The PC (18:1/18:2) and pentadecanoic acid were shared. Most differential metabolites were significantly enriched in amino acid, fatty acid metabolism, digestive system secretion and ovarian steroidogenesis pathways. CONCLUSIONS This study showed that FSH, P4, AMH, the PC relevant metabolites and some anomic acids could be potential biomarkers for embryonic yield prediction in ovine multiple ovulation. The results would help to explain the relation between blood material and ovarian function and provide a theoretical basis for the multiple ovulation prediction.
Collapse
Affiliation(s)
- Quanzhong Xu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Chunwei Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Lequn Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Rui Feng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Yulin Guo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Shuang Feng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Liguo Zhang
- Ulanqab Agriculture and Animal Husbandry Bureau, Ulanqab Animal Husbandry Workstation, Ulanqab, Inner Mongolia Autonomous Region, 012000, People's Republic of China
| | - Zhong Zheng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Guanghua Su
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Lifen Fan
- Department of Orthopedics, Ordos Central Hospital, Ordos, Inner Mongolia Autonomous Region, 017000, People's Republic of China
| | - Chao Bian
- Tumor Radiotherapy Department, Inner Mongolia People's Hospital, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Li Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China
| | - Xiaohu Su
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China. .,School of Life Sciences, Inner Mongolia University, No.49, Xilinguolenan Road, Hohhot, Inner Mongolia Autonomous Region, 010017, People's Republic of China.
| |
Collapse
|
2
|
King C, Osborn D, Grupen CG. Multiple ovulation and embryo transfer in sheep: Effects of embryo developmental stage and quality on viability in vivo under farm conditions. Aust Vet J 2022; 100:451-458. [PMID: 35582817 PMCID: PMC9543396 DOI: 10.1111/avj.13174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 04/25/2022] [Accepted: 05/04/2022] [Indexed: 11/29/2022]
Abstract
Multiple ovulation and embryo transfer (MOET) technologies are integral to genetic improvement programs in the sheep industries. Despite the protocols being well established, previous findings regarding the effects of embryo properties on MOET success remain contradictory. The objective of this study was to determine the effects of embryo developmental stage and quality on embryo viability following transfer to recipient ewes. Data including details of 377 embryos collected from 45 Merino donor ewes were obtained from MOET trials conducted on three separate farms on day 6 after laparoscopic artificial insemination (AI). A total of 270 embryos were classified as being of transferrable grade (grade 1: n = 233; grade 2: n = 37). One or two transferrable grade embryos were transferred to each of 256 synchronised recipient ewes and pregnancy diagnosis was performed on day 36 after embryo transfer. Embryos at the hatched blastocyst stage tended to have greater viability in vivo compared to embryos at the late morula stage (59.0 ± 10.6% vs. 36.2 ± 9.7%; P = 0.083). The viability of grade 1 embryos was greater than that of grade 2 embryos (53.6 ± 7.8% vs. 35.9 ± 10.2%; P < 0.05). The results suggest that the success of the MOET trials was influenced by the transfer of embryos at the late morula stage, almost half of which were classified as grade 2 embryos. These findings highlight the importance of following strict embryo quality grading criteria to inform the most economical management of recipient ewes and maximize pregnancy outcomes.
Collapse
Affiliation(s)
- Caf King
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, New South Wales, 2570, Australia
| | - D Osborn
- Apiam Genetic Services, Dubbo, New South Wales, 2830, Australia
| | - C G Grupen
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, New South Wales, 2570, Australia
| |
Collapse
|
3
|
Yuan Y, Liu R, Zhang X, Zhang J, Zheng Z, Huang C, Cao G, Liu H, Zhang X. Effects of recipient oocyte source, number of transferred embryos and season on somatic cell nuclear transfer efficiency in sheep. Reprod Domest Anim 2019; 54:1443-1448. [PMID: 31381183 DOI: 10.1111/rda.13546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 07/28/2019] [Indexed: 12/13/2022]
Abstract
To improve the efficiency of somatic cell nuclear transfer (SCNT) in sheep, we investigated the effects of recipient oocyte source, number of transferred embryos and season on the pregnancy and live lamb rates for sheep somatic cell nuclear transfer embryos. Follicle-stimulating hormone (FSH)-stimulated ovaries produced significantly more oocytes both in total and of suitable quality for maturation culture than those without FSH treatment (from slaughterhouse). However, their in vitro maturation rates were similar. Embryos were reconstructed using adult fibroblast cells into enucleated MII oocytes. The pregnancy and term rates were significantly higher in the FSH-stimulated group than in the slaughterhouse one. Oocytes from FSH-stimulated ovaries were enucleated as recipient cytoplasm for nuclear transfer in the following experiments. The transfer of 7-9 and 11-13 embryos produced significantly higher pregnancy rates than that of six embryos. However, the former groups exhibited similar live lamb rates. FSH-stimulated ovaries produced significantly more oocytes in November and December (winter) than in May to July (summer), but the associated maturation rate did not increase. Pregnancy and term rates were significantly higher when transfer occurred in winter than in summer. In conclusion, FSH treatment produced significant benefit regarding the number and quality of collected oocytes and also for the pregnancy and live lamb rates for reconstructed embryos. However, the transfer of an appropriate number of embryos (7-13) and at an appropriate season (winter) increased pregnancy and term rates.
Collapse
Affiliation(s)
- Yixin Yuan
- Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, China.,College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Ruming Liu
- College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaosheng Zhang
- Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, China
| | - Jinlong Zhang
- Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, China
| | - Zi Zheng
- Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, China
| | - Chengjun Huang
- Animal Husbandry Economic Management Station of Liaoning Province, Shenyang, China
| | - Guifang Cao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Haijun Liu
- Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, China
| | - Xianfu Zhang
- College of Animal Science and Technology, Zhejiang Agriculture & Forestry University, Hangzhou, China
| |
Collapse
|