1
|
Kumawat BL, Kumar P, Mahla AS, Kumar A, Kumar A, Singh R, Kumar A. A novel action of insulin sensitizing drug as a potential promotor of preovulatory follicles, ovulation rate and prolificacy in sheep. Vet Res Commun 2024; 48:849-863. [PMID: 37957451 DOI: 10.1007/s11259-023-10259-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/08/2023] [Indexed: 11/15/2023]
Abstract
The effect of the insulin-sensitizing drug metformin on preovulatory follicle (POF) number, ovulation rate, fetal rate and prolificacy was studied in forty-six cyclic Malpura ewes. After estrus synchronization, the ewes were equally divided into two groups (n = 23). The treatment group (MET) received a daily oral dose of metformin at a rate of 500 mg/animal for approximately 12 weeks, spanning five estrous cycles, as against untreated control (CON). All the ewes were bred to proven rams at the end of treatment. Ovarian ultrasound scans were performed at each estrus and day 9 of each cycle to assess the number and diameter of POFs and corpora lutea (CL), respectively. A comprehensive assessment of circulating hormones including, estradiol, progesterone, androstenedione, and insulin as well as metabolic indicators such as glucose, and lipid profile parameters was performed. At the end of treatment on the day of estrus (E5D0), the treatment showed a stimulatory effect on follicular development with a 53.2% (P < 0.001) increase in the number of POFs. It also increased the ovulation rate by 67.4% (P < 0.01), with a higher proportion (χ2df1 = 10.7, P < 0.001) of ewes in the MET group having multiple ovulations compared to the CON group (82.6 vs. 30.4%). With 1.48 ± 0.12 prolificacy rate in MET ewes, the proportion of ewes giving birth to multiple lambs was 2.9-fold higher than in the CON group. Plasma estradiol, insulin, glucose, total cholesterol, and LDL-cholesterol concentrations were lower (P < 0.05) in the MET ewes than in the CON. The results of the present study indicate that metformin can increase the number of POF, ovulation rate, fetal rate and prolificacy in ewes, while reducing the plasma estradiol, insulin, glucose and cholesterol in MET ewes.
Collapse
Affiliation(s)
- Babu Lal Kumawat
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304 501, India
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Bikaner (RAJUVAS), Rajasthan, 334 001, India
- Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Parbhani (MAFSU, Nagpur), Maharashtra, 431 402, India
| | - Pramod Kumar
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Bikaner (RAJUVAS), Rajasthan, 334 001, India
| | - Ajit Singh Mahla
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304 501, India.
| | - Ashok Kumar
- ICAR-Central Sheep and Wool Research Institute, Arid Region Campus, Bikaner, Rajasthan, 334 006, India
| | - Amit Kumar
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Bikaner (RAJUVAS), Rajasthan, 334 001, India
| | - Raghvendar Singh
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304 501, India
| | - Arun Kumar
- ICAR-Central Sheep and Wool Research Institute, Avikanagar, Rajasthan, 304 501, India
| |
Collapse
|
2
|
Masoomi M, Kheirandish P, Javadmanesh A, Danesh Mesgaran S, Izadi H, Danesh Mesgaran M. Rumen-protected l-carnitine supplementation during mating period altered metabolic status and reproductive performance of ewes. J Anim Physiol Anim Nutr (Berl) 2024; 108:300-309. [PMID: 37867377 DOI: 10.1111/jpn.13892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/24/2023]
Abstract
Current study hypothesized that dietary l-carnitine (LC) inclusion during the mating period ameliorates both metabolic status and reproductive performance of ewes. Seventy Baluchi ewes (52 ± 4.2 kg of bodyweight and 18 ± 6 months old of age) were enrolled in this study. Animals were randomly allocated into two dietary treatments, control (only basal diet) or basal diet plus supplementation with a rumen-protected LC (Carneon 20 Rumin-pro; 20% LC; Kaesler Nutrition GmbH) at the rate of 10 g/head/day from 21 days before until 35 days after introducing rams to the ewes (MP). Feed intake was monitored by subtracting the ort from feed offered. Blood sample collection was conducted on Days -10, +10 and +20 relative to MP. Pregnancy was confirmed on Day 30 post-MP. Feed intake of the ewes in the LC group was higher than the control (p < 0.05). LC supplementation increased the cholesterol concentration in the ewes (p < 0.05). Blood urea concentration of animals in the LC group was significantly lower than the control (p < 0.05). The mRNA expression of toll-like receptor 4 was evidently lower in animals supplemented with LC than the control (p < 0.05). Both lambing and fecundity rates in the LC group tended to be higher compared with the control. LC supplementation showed potential to alter certain metabolites in the ewes. A tendency for higher lambing rate may partly be driven by dams efficient energy partitioning to support foetal growth and maintaining pregnancy.
Collapse
Affiliation(s)
- Maziar Masoomi
- Small Ruminant Research Centre, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Parisa Kheirandish
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ali Javadmanesh
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Hooman Izadi
- Small Ruminant Research Centre, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohsen Danesh Mesgaran
- Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
3
|
Mahla AS, Bunkar SK, Kumawat BL, Kumar Saxena V, Selvaraju S, Bhatt RS, Singh R, Kumar A. Dietary n-3 PUFA augments pre-ovulatory follicle turnover and prolificacy in well-fed ewes. Anim Reprod Sci 2023; 252:107231. [PMID: 37086576 DOI: 10.1016/j.anireprosci.2023.107231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 04/24/2023]
Abstract
The present study evaluated the effect of dietary supplementation with n-3 polyunsaturated fatty acids (PUFA) on preovulatory follicle (POF) turnover, prolificacy, and endocrine and metabolic milieu in Malpura sheep. Fifty cyclic ewes with 3-3.5 body condition scores on a five-point scale were allocated equally to two groups (n = 25) following estrus synchronization and were supplemented with 0.6 mL/kg body weight of n-3 PUFA-rich fish oil (FO) or palm oil (PO) as control, for 60 d following an acclimatization period of 7 d. All ewes were mated with sexually active rams at the end of the supplementation period. On ultrasonographic ovarian scanning at the last fourth estrus, the mean number of POFs was 77.8% greater (P < 0.01) in FO ewes than in the PO ewes. The proportion of ewes with multiple ovulations two months after the beginning of supplementation was 56% in the FO group as compared to 8% in the PO group. The number of fetuses was 46% higher (P < 0.01) in the FO than in the PO ewes at d 45 of gestation. At lambing, the twinning percent in the FO ewes was three times greater than in the PO ewes (27.3 vs. 9.1%). Plasma cholesterol, estradiol, and insulin concentrations were lower (P < 0.01) in ewes fed with FO than those offered PO group at the end of the feeding period. It was concluded that the dietary supplementation of n-3 PUFA-rich FO in well-fed Malpura ewes improved the number of follicles and ovulation rate which led to an increased prolificacy, accompanied by a reduction of plasma cholesterols, estradiol, and insulin.
Collapse
Affiliation(s)
- Ajit Singh Mahla
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research, Avikanagar 304 501, Rajasthan, India.
| | - Suresh Kumar Bunkar
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research, Avikanagar 304 501, Rajasthan, India
| | - Babu Lal Kumawat
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research, Avikanagar 304 501, Rajasthan, India; Department of Animal Reproduction, Gynaecology and Obstetrics, College of Veterinary and Animal Sciences, Parbhani, MAFSU, Nagpur 431 402, Maharashtra, India
| | - Vijay Kumar Saxena
- Protein Science Laboratory, Department of Pharmacy, University of Eastern Finland, Kuopio, Northern Savonia, Finland
| | - Sellappan Selvaraju
- Reproductive Physiology Laboratory, Animal Physiology Division, ICAR-National Institute of Animal Nutrition and Physiology, Adugodi, Bengaluru 560 030, Karnataka, India
| | - Randhir Singh Bhatt
- Animal Nutrition Division, ICAR-Central Sheep and Wool Research Institute, Avikanagar 304 501, Rajasthan, India
| | - Raghvendar Singh
- Animal Physiology and Biochemistry Division, ICAR-Central Sheep and Wool Research, Avikanagar 304 501, Rajasthan, India
| | - Arun Kumar
- ICAR-Central Sheep and Wool Research Institute, Avikanagar 304 501, Rajasthan, India
| |
Collapse
|
4
|
Wang Y, Duan C, Guo Y, Li J, He H, Li R, Zhang Y, Liu Y. Effects of glucose on glycolysis and steroidogenesis as well as related gene expression in ovine granulosa cells in vitro. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
5
|
Wang Y, Guo Y, Duan C, Yang R, Zhang L, Liu Y, Zhang Y. Long Non-Coding RNA GDAR Regulates Ovine Granulosa Cells Apoptosis by Affecting the Expression of Apoptosis-Related Genes. Int J Mol Sci 2022; 23:ijms23095183. [PMID: 35563579 PMCID: PMC9104640 DOI: 10.3390/ijms23095183] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/30/2022] [Accepted: 04/30/2022] [Indexed: 02/01/2023] Open
Abstract
Short-term dietary supplementation of ewes during the luteal phase can increase fertility, most probably by stimulating glucose uptake by the follicles. However, the molecular mechanism of glucose regulation of follicular development has not yet been clarified, especially the further study of long non-coding RNA (lncRNA) in determining fertility during follicular development. We generated granulosa cell (GC) models of different doses of glucose (0, 2.1, 4.2, 8.4, 16.8 and 33.6 mM), and observed that the highest cell viability was recorded in the 8.4 mM group and the highest apoptosis rates were recorded in the 33.6 mM group. Therefore, a control group (n = 3, 0 mM glucose), a low glucose group (n = 3, add 8.4 mM glucose), and a high glucose group (n = 3, add 33.6 mM glucose) of GCs were created for next whole genomic RNA sequencing. In total, 18,172 novel lncRNAs and 510 annotated lncRNAs were identified in the GCs samples. Gene Ontology indicated that differentially expressed lncRNAs associated with cell apoptosis were highly enriched. Kyoto Encyclopedia of Genes and Genomes enrichment analysis of lncRNA target genes found that the apoptosis pathway and the p53 signaling pathway were both enriched. Furthermore, we focused on the function of a lncGDAR and verified that lncGDAR could influence cell apoptosis in GC development through affecting the mRNA and protein expression of apoptosis-related markers. These results provide the basis for further study of the lncRNA regulation mechanism in nutrition on female fertility.
Collapse
Affiliation(s)
- Yong Wang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
| | - Yunxia Guo
- College of Life Science, Hebei Agricultural University, Baoding 071000, China;
| | - Chunhui Duan
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
| | - Ruochen Yang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
| | - Lechao Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
| | - Yueqin Liu
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
| | - Yingjie Zhang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China; (Y.W.); (C.D.); (R.Y.); (L.Z.); (Y.L.)
- Correspondence: ; Tel.: +86-312-7528366
| |
Collapse
|
6
|
Hussein HA, Mahmoud GB, Abdel-Raheem SM, Mohamed RH, Wehrend A. Impact of short-term protein supplementation on estrus, ovarian activity, and blood metabolites in Ossimi ewes synchronized with PGF2 α analogue ( Cloprostenol) in subtropics. BIOL RHYTHM RES 2021. [DOI: 10.1080/09291016.2019.1603690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Hassan A Hussein
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Gamal B Mahmoud
- Department of Animal Production, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Sherief M. Abdel-Raheem
- Department of Nutrition & Clinical Nutrition, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt
| | - Ragab H. Mohamed
- Department of Theriogenology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Axel Wehrend
- Clinic of Obstetrics, Gynecology and Andrology of large and small animals with a veterinary ambulance, Justus Liebig University, Giessen, Germany
| |
Collapse
|
7
|
Yao YC, Song XT, Zhai YF, Liu S, Lu J, Xu X, Qi MY, Zhang JN, Huang H, Liu YF, Liu GS, Yuan H. Transcriptome analysis of sheep follicular development during prerecruitment, dominant, and mature stages after FSH superstimulation. Domest Anim Endocrinol 2021; 74:106563. [PMID: 33129139 DOI: 10.1016/j.domaniend.2020.106563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/08/2020] [Accepted: 09/08/2020] [Indexed: 12/29/2022]
Abstract
Sheep is usually a monovular animal; superovulation technology is used to increase the number of offspring per individual and shorten generation intervals. To date, mature FSH superstimulatory treatments have been successfully used in sheep breeding, but much remains unknown about genes, pathways, and biological functions involved in follicular development. Therefore, in this study, we performed transcriptome profiling of small follicles (SFs; 2-2.5 mm), medium follicles (MFs; 3.5-4.5 mm), and large follicles (LFs; > 6 mm) in Mongolian ewes after FSH superstimulation. Furthermore, we identified differentially expressed genes and performed Kyoto Encyclopedia of Genes and Genomes pathway and Gene Ontology enrichment analyses in 3 separate pairwise comparisons. We found that ovarian steroidogenesis was significantly enriched in the SFs versus MFs analysis; the associated genes, cytochrome P450 family 19 (CYP19) and Hydroxy-delta-5-steroid dehydrogenase 3 beta- and steroid delta-isomerase 1 (HSD3B1), were significantly upregulated. Moreover, proline metabolism, glutathione metabolism, and PPAR signaling pathways were significantly enriched in the LFs versus SFs analysis; the associated genes, glutamate-cysteine ligase modifier subunit (GCLM) and cystathionine gamma-lyase (CTH), were significantly upregulated, whereas peroxisome proliferator-activated receptor gamma (PPARγ) was significantly downregulated. In summary, our study provides basic data and possible biological direction to further explore the molecular mechanism of sheep follicular development after FSH superstimulation.
Collapse
Affiliation(s)
- Y C Yao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - X T Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - Y F Zhai
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - S Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - J Lu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - X Xu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - M Y Qi
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, Heilongjiang, China
| | - J N Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - H Huang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China
| | - Y F Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, Heilongjiang, China
| | - G S Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - H Yuan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, Heilongjiang, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang province, Harbin 150030, Heilongjiang, China.
| |
Collapse
|
8
|
Effect of short-term nutritional supplementation on hormone concentrations in ovarian follicular fluid and steroid regulating gene mRNA abundances in granulosa cells of ewes. Anim Reprod Sci 2019; 211:106208. [PMID: 31785624 DOI: 10.1016/j.anireprosci.2019.106208] [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: 04/16/2019] [Revised: 09/30/2019] [Accepted: 10/16/2019] [Indexed: 11/21/2022]
Abstract
This study was conducted to investigate effects of short-term nutritional supplementation on concentrations of reproductive hormones in follicular fluid and on mRNA abundance in granulosa cells (GCs) during the luteal phase of ewes. Eighteen ewes were randomly assigned to treatment or control groups (n = 9, each group). All the ewes were subjected to estrous synchronization using a Controlled Intravaginal Releasing Device (CIDR). From the second to the eleventh day of estrous synchronization, ewes were fed a diet with a relatively greater (treatment group) or a maintenance (control group) energy content. Samples of follicular fluid and GCs were collected from antral follicles of estrous ewes after CIDR removal. The results indicate mean FSH concentration of fluid in small follicles and mean LH concentrations of fluid in large follicles of the ewes in the treatment group were greater (P < 0.05) than that of ewes in the control group. Follicular fluid E2 concentrations were directly related (P < 0.05) to follicular diameter. The ewes of the treatment group had greater (P < 0.05), compared with the control group, abundances of Follicle Stimulating Hormone Receptor (FSHR) in small and medium follicles, and (P<0.05) Luteinizing Hormone Receptor (LHR), Steroid Acute Regulatory Protein (STAR), cytochrome P450 (CYP17A1, CYP19A1) enzyme and Estrogen Receptor (ESR1) in large follicles. The results of this study provide evidence for a potential mechanism by which short-term nutritional supplementation improves follicular development possibly because of increased expression of steroid synthesis-regulating genes in large follicles.
Collapse
|
9
|
Erdoğan S, Karaca S, Güney M, Kor A, Çakmakçı C, Sarıbey M. Effect of dried corn distillers' grains with solubles and soybean meal supplements on physiological indicators and reproductive performance of ewes. Arch Anim Nutr 2018; 72:351-367. [PMID: 30183394 DOI: 10.1080/1745039x.2018.1507976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
This study aimed to evaluate the effects of adding dried distillers' grains with solubles (DDGS) to the nutritional regimens of ewes at different time periods on reproductive traits, serum hormones and serum metabolites. In Experiment 1, 100 ewes were divided into 4 groups (n = 25) according to diet. The four diets were grass hay (H) alone (group H), H with barley (group H + B), H with DDGS for the whole feeding period (27 d) (group H + DDGS) or H and DDGS for 5 d (d 8-12 of oestrus cycle) (group H + DDGS5). Serum progesterone concentrations were affected by oestrus cycle (p < 0.001), but not by dietary treatments. However, feeding H + DDGS caused significant increases in serum insulin, leptin and growth hormone concentrations (p < 0.05). In Experiment 2, 30 ewes were divided into 2 groups (n = 15), receiving DDGS or soybean meal (SBM) during the prepartum period. Diets had no significant effect on weights of dams or lambs at birth; however, the weaning weights of lambs born from ewes of group DDGS were significantly higher (p < 0.05). Moreover, serum glucose, blood urea nitrogen, triglyceride and beta hydroxybutyric acid (BHBA) concentrations during the prepartum period were affected by dietary treatments and by time (p < 0.001). During the prepartum period, BHBA concentrations of ewes fed SBM were higher, while BHBA levels decreased during the last weeks of pregnancy regardless of diet. Lamb serum immunoglobulin G concentrations increased from 1 h to 24 h after birth (p < 0.001). Colostrum of ewes fed SBM had higher fat-free dry matter (DM) and protein contents in comparison to colostrum of ewes fed DDGS (p < 0.05). In conclusion, DDGS can be included as protein source in pregnancy rations up to 15% of DM to obtain reproductive performance outcomes equal to or exceeding those obtained with SBM.
Collapse
Affiliation(s)
- Sibel Erdoğan
- a Department of Animal Science , Faculty of Agriculture, Yüzüncü Yıl University , Van , Turkey
| | - Serhat Karaca
- a Department of Animal Science , Faculty of Agriculture, Yüzüncü Yıl University , Van , Turkey
| | - Mehtap Güney
- b Department of Animal Nutrition , Faculty of Veterinary Medicine, Yüzüncü Yıl University , Van , Turkey
| | - Aşkın Kor
- a Department of Animal Science , Faculty of Agriculture, Yüzüncü Yıl University , Van , Turkey
| | - Cihan Çakmakçı
- a Department of Animal Science , Faculty of Agriculture, Yüzüncü Yıl University , Van , Turkey
| | - Muammer Sarıbey
- a Department of Animal Science , Faculty of Agriculture, Yüzüncü Yıl University , Van , Turkey
| |
Collapse
|
10
|
Asgari Safdar AH, Sadeghi AA, Chamani M. Effects of different fat sources (saturated and unsaturated) on reproductive performance and biological indices of ewes during flushing period. Trop Anim Health Prod 2017; 49:1447-1453. [PMID: 28687939 DOI: 10.1007/s11250-017-1346-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 06/26/2017] [Indexed: 11/30/2022]
Abstract
This study was conducted to evaluate the effect of feeding different sources of fat during flushing period on the reproductive performance, lambing percent, and twin numbers of Afshari ewes. A total of 84 ewes (mean weight 48 ± 3 kg; age: 3-4 years) were divided into seven groups of 12 animals and received flushing-specific rations for 5 weeks. The control group just received a basic ration (non-flushing). Lipid sources were calcium salt of palm oil (CaP), pure palm oil (PO), calcium salt of flaxseed (CaFL), calcium salt of sunflower oil (CaSF), flaxseed oil (FLO), and sunflower oil (SFO). Estrous cycles were synchronized in all ewes using 14-day CIDRs followed by 400-IU PMSG injection at the time of CIDR removal. Fertility and lambing percent were higher in ewes fed with diets containing calcium salts of flaxseed and SFO, as compared to other treatments. Total number of lambs in flushing treatments was significantly higher than that in the control group (p < 0.01). Serum cholesterol and progesterone levels were significantly greater in omega-3 (CaFL) and omega-6 (CaSF) treatments relative to other treatments (p < 0.01). It was concluded that supplementing the flushing diet with calcium salts of fatty acids (CSFA) increased blood metabolites and hormones related to reproductive performance; and improved fertility, lambing rate and ewes of CaFL treatment have the highest number of lambs (16 lambs) between different groups. Using saturated and unsaturated fatty acids, especially in their CSFA forms during flushing period, could improve the reproduction problems induced by progesterone deficiency, lack of durability of the fetus due to hormonal instability, and abortion control factors.
Collapse
Affiliation(s)
| | - Ali Asghar Sadeghi
- Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Mohammad Chamani
- Department of Animal Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
11
|
Abstract
The development of new varieties of lupin, so-called “sweet lupinsˮ with low alkaloid (bitter substances) and high protein content has resulted in a renewed interest in utilization of lupin as source of proteins in human and animal nutrition. The nutraceutical potential of lupin can be applied in the prevention from various pathological states in humans; by suppressing appetite and affecting energy balance, by its positive effect on glycaemia and indicators of blood lipids, by its positive influence on hypertension and by improving defecation. In the field of animal nutrition, lupin seeds can positively affect both production indicators and the biological value of food of animal origin.
Collapse
|
12
|
Luo F, Jia R, Ying S, Wang Z, Wang F. Analysis of genes that influence sheep follicular development by different nutrition levels during the luteal phase using expression profiling. Anim Genet 2016; 47:354-64. [PMID: 26970339 DOI: 10.1111/age.12427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2016] [Indexed: 01/09/2023]
Abstract
Nutrition is an important factor that regulates reproductive performance of sheep and affects follicle development. However, the correlation between nutrition and follicle development is poorly understood at the molecular level. To study its possible molecular mechanisms, we performed expression profiling of granulosa cells isolated from sheep that were fed different levels of nutrition levels during the luteal phase. To do this, ewes received a maintenance diet (M), and their estrus was synchronized by intravaginal progestogen sponges for 12 days. Ewes were randomly divided into the short-term dietary-restricted group (R; 0.5 × M) and the nutrient-supplemented group (S; 1.5 × M). RNA samples were extracted from granulosa cells. Transcriptome libraries from each group were constructed by Illumina sequencing. Among 18 468 detected genes, 170 genes were significantly differentially expressed, of which 140 genes were upregulated and 30 genes were downregulated in group S relative to group R. These genes could be candidates regulating follicular development in sheep. Gene Ontology, KEGG and clustering analyses were performed. Genes related to oocyte meiosis, such as ADCY7, were upregulated. We identified two important groups of related genes that were upregulated with improved nutrition: one group comprising the genes PTGS2, UCP2 and steroidogenic acute regulatory protein and the other group comprising interleukin-1A and interleukin-1B. The genes within each group showed similar expression patterns. Additionally, all five genes are involved in the reproduction process. Quantitative real-time PCR was performed to validate the results of expression profiling. These data in our study are an abundant genomic resource to expand the understanding of the molecular and cellular events underlying follicle development.
Collapse
Affiliation(s)
- F Luo
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.,Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - R Jia
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - S Ying
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Z Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - F Wang
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China.,Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, 210095, PR China
| |
Collapse
|
13
|
Habibizad J, Riasi A, Kohram H, Rahmani HR. Effect of feeding greater amounts of dietary energy for a short-term with or without eCG injection on reproductive performance, serum metabolites and hormones in ewes. Anim Reprod Sci 2015; 160:82-9. [PMID: 26250419 DOI: 10.1016/j.anireprosci.2015.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 07/09/2015] [Accepted: 07/23/2015] [Indexed: 10/23/2022]
Abstract
This study was conducted to compare the effect of transient high-energy diet in a short-term period with or without eCG injection on ovarian follicle development, twining rate, serum metabolites and hormones in ewes. A total of 45 estrous cyclic Naeini ewes were randomly assigned to three experimental groups: 1-Control (control), 2-High energy short-term feeding (HE), and 3-high energy short-term feeding + eCG injection (HEe). Ewes were housed in individual pens with free access to feed and water. The stage of the estrous cycle of all ewes was synchronized by insertion of intravaginal progesterone sponges. Focus feeding started from 4 days before until 1 day after sponge removal. Follicle development was monitored from 4 days before until 1 day after sponge removal and blood samples were taken during this time. Results showed that ewes fed high energy diets (HE and HEe) had greater (P < 0.05) large follicle numbers compared with the control group. Feeding high energy diets increased (P < 0.05) serum glucose, cholesterol and insulin, but had lesser (P < 0.05) serum urea nitrogen concentrations near the time of ovulation. After the start of experiment, ewes fed high energy diets had less (P < 0.05) serum estradiol. However, 1 day after sponge removal, serum estradiol in HE and HEe groups increased (P < 0.05). It was concluded that short-term (6-day) changes in amount of dietary energy with or without eCG injection increased twin births and had beneficial effects on the blood metabolites and hormone concentrations in Naeini ewes.
Collapse
Affiliation(s)
- Javad Habibizad
- Department of Animal Science, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Ahmad Riasi
- Department of Animal Science, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hamid Kohram
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Hamid Reza Rahmani
- Department of Animal Science, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran
| |
Collapse
|
14
|
Scaramuzzi RJ, Zouaïdi N, Menassol JB, Dupont J. The effects of intravenous, glucose versus saline on ovarian follicles and their levels of some mediators of insulin signalling. Reprod Biol Endocrinol 2015; 13:6. [PMID: 25604903 PMCID: PMC4417278 DOI: 10.1186/1477-7827-13-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 01/17/2015] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND A short-term increase in food intake and specifically dietary energy can stimulate folliculogenesis and increase ovulation rate in ewes. The mechanism appears to involve the insulin-glucose metabolic system and its interaction with FSH signalling pathways in the granulosa cells of ovarian follicles. This experiment was designed to investigate the interaction between these two systems in the granulosa cells of ovarian follicles. METHODS Thirty six Ile-de-France ewes were used in this controlled experiment to study the effects of intravenous glucose on folliculogenesis. Eighteen ewes were infused with glucose (10 mM/h for 72 h) from day 8 of the oestrous cycle, while the others (controls) received saline. Ovaries were collected when the infusions ended (luteal phase) or 30 h later and after a luteolytic dose of a PGF2α analogue (follicular phase). Follicles were dissected and granulosa cells and follicular fluid harvested. The blood concentrations of glucose, insulin, oestradiol and FSH were monitored over the experiment. The levels of Aromatase P450 and of the phosphorylated and non-phosphorylated forms of Akt, AMPK and ERK in granulosa cells and the concentration of oestradiol in follicular fluid, were determined. RESULTS Glucose increased the circulating concentration of glucose (P < 0.05) and insulin (P < 0.05). It also increased the total number of follicles >1.0 mm in diameter (P < 0.05) and small (P < 0.05) follicles (>1.0 to 2.0 mm in diameter) but not medium (>2.0 to 3.5 mm in diameter) or large (>3.5 mm in diameter) follicles. Glucose decreased circulating oestradiol (P < 0.05) but not that of FSH or progesterone. Glucose reduced aromatase P450 (P < 0.05) and decreased the phosphorylation of Akt (P < 0.05), ERK (P < 0.05) and AMPK (P < 0.05) in granulosa cells from oestrogenic follicles. The level of Aromatase P450 was greatest in large oestrogenic follicles and the phosphorylation of Akt (P < 0.05), ERK (P < 0.05) and AMPK (P < 0.05) was lower in small follicles compared to medium and large follicles. CONCLUSIONS These data suggest that the effect of glucose in small follicles is a direct action of glucose that increases the number of small follicles while the effect of glucose in oestrogenic follicles is an indirect insulin-mediated action.
Collapse
Affiliation(s)
- Rex John Scaramuzzi
- L'Institut National de la Recherche Agronomique, Unité Mixte de Recherche 6175, Physiologie de la Reproduction et des Comportements, Nouzilly, 37380, France.
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, Hawkshead Lane, North Mimms, Hertfordshire, AL9 7TA, UK.
| | - Nesrine Zouaïdi
- L'Institut National de la Recherche Agronomique, Unité Mixte de Recherche 6175, Physiologie de la Reproduction et des Comportements, Nouzilly, 37380, France.
| | - Jean-Baptiste Menassol
- L'Institut National de la Recherche Agronomique, Unité Mixte de Recherche 6175, Physiologie de la Reproduction et des Comportements, Nouzilly, 37380, France.
- L'Institut National de la Recherche Agronomique, UR 1213 URH Unité de Recherches sur les Herbivores, Centre de recherche de Clermont-Ferrand-Theix, Clermont-Ferrand, France.
| | - Joëlle Dupont
- L'Institut National de la Recherche Agronomique, Unité Mixte de Recherche 6175, Physiologie de la Reproduction et des Comportements, Nouzilly, 37380, France.
| |
Collapse
|
15
|
Clarke IJ. Interface between metabolic balance and reproduction in ruminants: focus on the hypothalamus and pituitary. Horm Behav 2014; 66:15-40. [PMID: 24568750 DOI: 10.1016/j.yhbeh.2014.02.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 02/13/2014] [Accepted: 02/15/2014] [Indexed: 01/24/2023]
Abstract
This article is part of a Special Issue "Energy Balance". The interface between metabolic regulators and the reproductive system is reviewed with special reference to the sheep. Even though sheep are ruminants with particular metabolic characteristics, there is a broad consensus across species in the way that the reproductive system is influenced by metabolic state. An update on the neuroendocrinology of reproduction indicates the need to account for the way that kisspeptin provides major drive to gonadotropin releasing hormone (GnRH) neurons and also mediates the feedback effects of gonadal steroids. The way that kisspeptin function is influenced by appetite regulating peptides (ARP) is considered. Another newly recognised factor is gonadotropin inhibitory hormone (GnIH), which has a dual function in that it suppresses reproductive function whilst also acting as an orexigen. Our understanding of the regulation of food intake and energy expenditure has expanded exponentially in the last 3 decades and historical perspective is provided. The function of the regulatory factors and the hypothalamic cellular systems involved is reviewed with special reference to the sheep. Less is known of these systems in the cow, especially the dairy cow, in which a major fertility issue has emerged in parallel with selection for increased milk production. Other endocrine systems--the hypothalamo-pituitary-adrenal axis, the growth hormone (GH) axis and the thyroid hormones--are influenced by metabolic state and are relevant to the interface between metabolic function and reproduction. Special consideration is given to issues such as season and lactation, where the relationship between metabolic hormones and reproductive function is altered.
Collapse
Affiliation(s)
- Iain J Clarke
- Monash University, Department of Physiology, Wellington Road, Clayton 3168, Australia.
| |
Collapse
|