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Henao-Gonzalez M, Ferrer MS, Jiménez-Escobar C, Palacio-Baena LG, Maldonado-Estrada JG. Ultrasonographic Screening of Dairy Cows with Normal Uterine Involution or Developing Postpartum Uterine Disease Using B-Mode, Color, and Spectral Doppler. Vet Med Int 2023; 2023:2597332. [PMID: 37745163 PMCID: PMC10516695 DOI: 10.1155/2023/2597332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 07/25/2023] [Accepted: 08/28/2023] [Indexed: 09/26/2023] Open
Abstract
Uterine involution, ovarian activity, and incidence of postpartum uterine disease (PUD) were assessed in forty-eight dairy cows from calving until the 10th postpartum week. Postpartum follow-up included evaluation of uterine involution and ovarian structures by B-mode, Doppler color, and Doppler spectral ultrasound of the right uterine artery in cows with no calving or postpartum uterine problems (healthy cows). Data from cows that developed PUD (PUD cows) were compared with healthy cows matched by herd and days in milk (DIM). Data were analyzed by descriptive statistics, simple regression, one-way ANOVA, or repeated ANOVA measures, and in data analysis of healthy cows, uterine horn diameter assessed by B-mode ultrasound ranged from 22.9 ± 2.4 to 19.4 ± 1.4 mm and 19.9 ± 2.2 to 20.5 ± 2.3 mm from the fourth to the seventh postpartum week in the left and right uterine horns, respectively (P > 0.05). During the study, 15 and 7 cows had corpus luteum in the left and right ovaries, respectively. The mean time for the first postpartum CL was 30.1 ± 3.2 DIM (min 8, max 67 DIM). In data analysis of PUD cows, uterine blood flow assessed by color Doppler ranged from 7.4 ± 4.0 to 43.75 ± 10.3% in cows that developed PUD compared to 16.7 ± 11.0% in healthy cows (P > 0.05). No statistically significant changes were found in resistance index, pulsatility index, time-averaged maximum velocity, time-averaged mean velocity, or diastole/systole ratio (D/S) in cows that developed PUD compared to healthy cows (P > 0.05). Finally, no correlation was found between Doppler spectral parameters and uterine involution (P > 0.05). Our data suggest that cows receiving transition diets and exhibiting normal calving undergo a rapid macroscopic uterine involution and ovarian follicular dynamics resumption. Complete ultrasound evaluation provides valuable data for assessing uterine involution in postpartum dairy cows.
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Affiliation(s)
- Mariana Henao-Gonzalez
- One Health and Veterinary Innovative Research and Development (OHVRI-Group), College of Veterinary Medicine, University of Antioquia, Medellin 050034, Colombia
| | - María S. Ferrer
- Department of Large Animal Medicine, College of Veterinary Medicine, The University of Georgia, Athens, Georgia, USA
| | - Claudia Jiménez-Escobar
- Reproductive Biotechnology Laboratory, Section of Theriogenology and Herd Health, Department of Animal Health, Faculty of Veterinary Medicine and Zootechny, National University of Colombia, Bogota, DC, Colombia
| | - Luis G. Palacio-Baena
- One Health and Veterinary Innovative Research and Development (OHVRI-Group), College of Veterinary Medicine, University of Antioquia, Medellin 050034, Colombia
| | - Juan G. Maldonado-Estrada
- One Health and Veterinary Innovative Research and Development (OHVRI-Group), College of Veterinary Medicine, University of Antioquia, Medellin 050034, Colombia
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Pirokad W, Yadmak C, Yama P, Jitjumnong J, U-krit W, Chaikol W, Sangkate M, Promsao N, Montha N, Sudwan P, Mektrirat R, Panatuk J, Intawicha P, Lumsangkul C, Tang PC, Moonmanee T. Increased luteal tissues after secondary corpus luteum formation leads to enhanced progesterone concentrations and improved fertility in repeat-breeder dairy cows during heat stress condition in tropical climate. Trop Anim Health Prod 2022; 54:308. [DOI: 10.1007/s11250-022-03295-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 08/31/2022] [Indexed: 11/28/2022]
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Ruiz S, Gardón JC, Hernández-Caravaca I, Luongo C, García-Vázquez FA. Analysis of Uterine Blood Flow in Breeding Sows through the Estrus and Early Diestrus, and after Artificial Insemination. Vet Sci 2022; 9:vetsci9060260. [PMID: 35737312 PMCID: PMC9228517 DOI: 10.3390/vetsci9060260] [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: 04/24/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to determine uterine blood flow indices by transabdominal Doppler ultrasound in sows (n = 18) under different conditions: (i) sows after estrus detection (day 0, D0); (ii) sows 2 h after artificial insemination (AI), performed 24 h after detection of estrus (day 1, D1); (iii) sows in early diestrus (day 5, D5). Moreover, three different types of seminal doses were used for AI depending on the ejaculate fraction included (F1: doses containing only the rich fraction of the ejaculate; F2: F1 + the transition fraction between rich and poor fractions; F3: F2 and poor fraction). The statistical analysis revealed significant differences in some indices regarding the period of analysis (D0, D1, and D5). Diastolic velocity and mean velocity showed lower values at D5 in comparison with D0 and D1 (p < 0.01). On the other hand, the pulsatility index and the relationship systolic velocity/diastolic velocity indicated higher values at D5 in comparison with D0 and D1 (p < 0.01). No differences were observed regarding the type of seminal dose used in any of the time points analyzed (p > 0.05). Neither insemination per se nor the type of ejaculate fraction used immediately modified the uterine vascularity, but some indices are affected by the stage of the estrus cycle (estrus vs. early diestrus).
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Affiliation(s)
- Salvador Ruiz
- Departamento de Fisiología, Facultad de Veterinaria, Campus de Excelencia Mare Nostrum Universidad de Murcia, 30100 Murcia, Spain; (S.R.); (C.L.)
- Instituto Murciano de Investigación Biosanitaria Hospital Virgen de la Arrixaca (IMIB-Virgen de la Arrixaca), 30120 Murcia, Spain;
| | - Juan Carlos Gardón
- Department of Animal Medicine and Surgery, Faculty of Veterinary and Experimental Sciences, Catholic University of Valencia-San Vicente Mártir, Guillem de Castro 106, 46003 Valencia, Spain;
| | - Iván Hernández-Caravaca
- Instituto Murciano de Investigación Biosanitaria Hospital Virgen de la Arrixaca (IMIB-Virgen de la Arrixaca), 30120 Murcia, Spain;
- Departamento de Enfermería Comunitaria, Medicina Preventiva y Salud Pública e Historia de la Ciencia, Facultad Ciencias de la Salud, Campus de Sant Vicent del Raspeig, E-03080 Sant Vicent del Raspeig, Spain
| | - Chiara Luongo
- Departamento de Fisiología, Facultad de Veterinaria, Campus de Excelencia Mare Nostrum Universidad de Murcia, 30100 Murcia, Spain; (S.R.); (C.L.)
| | - Francisco Alberto García-Vázquez
- Departamento de Fisiología, Facultad de Veterinaria, Campus de Excelencia Mare Nostrum Universidad de Murcia, 30100 Murcia, Spain; (S.R.); (C.L.)
- Instituto Murciano de Investigación Biosanitaria Hospital Virgen de la Arrixaca (IMIB-Virgen de la Arrixaca), 30120 Murcia, Spain;
- Correspondence:
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Yama P, Yadmak C, Sangkate M, Jitjumnong J, U-krit W, Promsao N, Montha N, Sudwan P, Mektrirat R, Panatuk J, Inyawilert W, Sringarm K, Lumsangkul C, Tapingkae W, Doan HV, Tang PC, Moonmanee T. In Vivo Follicular and Uterine Arterial Indices as an Indicator of Successful Hormonal Stimulation for Inactive Ovaries in Repeat-Breeder Crossbred Dairy Cows Using a Short-Term Progesterone-Based Programme. Animals (Basel) 2022; 12:ani12030292. [PMID: 35158616 PMCID: PMC8833532 DOI: 10.3390/ani12030292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Blood supply of female reproductive organs plays an important role in reproductive performance in cattle. Ovarian and uterine arterial indices (vascularised area) from colour Doppler imaging provided important information about ovarian activity, supporting clinical diagnoses and reproductive management decisions in female cattle. However, the information regarding the relationship between reproductive vascular indices and resumption of follicular activity after hormonal stimulation for inactive ovaries in infertile dairy cows is scarce; thus, infertile crossbred dairy cows with inactive ovaries were induced using a 5-day progesterone-based programme. Our results highlighted that repeat-breeder crossbred dairy cows with greater follicular size and follicular and uterine arterial indices underwent a resumption of ovarian activity after hormonal stimulation. Therefore, additional information on follicular and uterine arterial indices that can be helpful in predicting the resumption of ovarian activity after hormonal stimulation in inactive ovary cows can be gained by reproductive vascularisation from colour Doppler ultrasonography. Abstract An investigation of vascularity of ovarian and uterine arteries after hormonal treatment for inactive ovaries using the short-term progesterone-based programme had not yet been explored in repeat-breeder crossbred dairy cows. To investigate the in vivo follicular and uterine arterial indices as an indicator of successful hormonal stimulation for inactive ovaries in repeat-breeder crossbred dairy cattle, 59 cows with inactive ovaries were induced with a 5-day progesterone-based protocol. At the completion of hormonal synchronisation, cows were divided into two groups according to the size of the largest follicle (LF) on their ovary: small (≤10.0 mm) and large (>10.0 mm) LFs. Vascularities of LF and uterine artery (UtA) were evaluated using a colour Doppler tool. Cows that presented with large LF had greater follicular and UtA vascular indices (p < 0.001) and pregnancy rate (p < 0.01) than cows bearing small LF on their ovary. There was a positive correlation (p < 0.001) between follicular size and LF and UtA vascular indices. Our findings highlighted that in vivo LF and UtA vascular indices at the completion of hormonal stimulation might be a promising indicator for predicting success in ovarian response to hormonal stimulation for inactive ovaries of infertile crossbred dairy cows.
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Affiliation(s)
- Punnawut Yama
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan; (J.J.); (P.-C.T.)
| | | | - Molarat Sangkate
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
| | - Jakree Jitjumnong
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan; (J.J.); (P.-C.T.)
| | - Warittha U-krit
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
| | - Nalinthip Promsao
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
| | - Napatsorn Montha
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
| | - Paiwan Sudwan
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Raktham Mektrirat
- Department of Veterinary Biosciences and Public Health, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand;
| | - Julakorn Panatuk
- Faculty of Animal Science and Technology, Maejo University, Chiang Mai 50290, Thailand;
| | - Wilasinee Inyawilert
- Department of Agricultural Science, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok 65000, Thailand;
| | - Korawan Sringarm
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
| | - Chompunut Lumsangkul
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wanaporn Tapingkae
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Hien Van Doan
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pin-Chi Tang
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan; (J.J.); (P.-C.T.)
- The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Tossapol Moonmanee
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.Y.); (M.S.); (W.U.-k.); (N.P.); (N.M.); (K.S.); (C.L.); (W.T.); (H.V.D.)
- Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel.: +66-53-944342
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Bok R, Guerra DD, Lorca RA, Wennersten SA, Harris PS, Rauniyar AK, Stabler SP, MacLean KN, Roede JR, Brown LD, Hurt KJ. Cystathionine γ-lyase promotes estrogen-stimulated uterine artery blood flow via glutathione homeostasis. Redox Biol 2020; 40:101827. [PMID: 33485059 PMCID: PMC7823052 DOI: 10.1016/j.redox.2020.101827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/16/2020] [Accepted: 12/01/2020] [Indexed: 12/16/2022] Open
Abstract
During pregnancy, estrogen (E2) stimulates uterine artery blood flow (UBF) by enhancing nitric oxide (NO)-dependent vasodilation. Cystathionine γ-lyase (CSE) promotes vascular NO signaling by producing hydrogen sulfide (H2S) and by maintaining the ratio of reduced-to-oxidized intracellular glutathione (GSH/GSSG) through l-cysteine production. Because redox homeostasis can influence NO signaling, we hypothesized that CSE mediates E2 stimulation of UBF by modulating local intracellular cysteine metabolism and GSH/GSSG levels to promote redox homeostasis. Using non-pregnant ovariectomized WT and CSE-null (CSE KO) mice, we performed micro-ultrasound of mouse uterine and renal arteries to assess changes in blood flow upon exogenous E2 stimulation. We quantified serum and uterine artery NO metabolites (NOx), serum amino acids, and uterine and renal artery GSH/GSSG. WT and CSE KO mice exhibited similar baseline uterine and renal blood flow. Unlike WT, CSE KO mice did not exhibit expected E2 stimulation of UBF. Renal blood flow was E2-insensitive for both genotypes. While serum and uterine artery NOx were similar between genotypes at baseline, E2 decreased NOx in CSE KO serum. Cysteine was also lower in CSE KO serum, while citrulline and homocysteine levels were elevated. E2 and CSE deletion additively decreased GSH/GSSG in uterine arteries. In contrast, renal artery GSH/GSSG was insensitive to E2 or CSE deletion. Together, these findings suggest that CSE maintenance of uterine artery GSH/GSSG facilitates nitrergic signaling in uterine arteries and is required for normal E2 stimulation of UBF. These data have implications for pregnancy pathophysiology and the selective hormone responses of specific vascular beds. CSE-null mice exhibit abnormal estrogen augmentation of uterine artery blood flow. Estrogen lowers uterine artery nitric oxide metabolites in CSE null mice. CSE loss and estrogen additively impair uterine artery glutathione homeostasis. Neither CSE loss nor estrogen influences renal artery blood flow or glutathione.
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Affiliation(s)
- Rachael Bok
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA
| | - Damian D Guerra
- Department of Biology, University of Louisville, 2301 S. 3rd Street, Louisville, KY, 40292, USA
| | - Ramón A Lorca
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA
| | - Sara A Wennersten
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA
| | - Peter S Harris
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E. Montview Blvd, Aurora, CO, 80045, USA
| | - Abhishek K Rauniyar
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E. Montview Blvd, Aurora, CO, 80045, USA
| | - Sally P Stabler
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA
| | - Kenneth N MacLean
- Section of Clinical Genetics and Metabolism, Department of Pediatrics, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA
| | - James R Roede
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 E. Montview Blvd, Aurora, CO, 80045, USA
| | - Laura D Brown
- Section of Neonatology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Perinatal Research Center, 13243 E. 23rd Avenue, Aurora, CO, 80045, USA
| | - K Joseph Hurt
- Division of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA; Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Aurora, CO, 80045, USA.
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Jitjumnong J, Moonmanee T, Sudwan P, Mektrirat R, Osathanunkul M, Navanukraw C, Panatuk J, Yama P, Pirokad W, U-Krit W, Chaikol W. Associations among thermal biology, preovulatory follicle diameter, follicular and luteal vascularities, and sex steroid hormone concentrations during preovulatory and postovulatory periods in tropical beef cows. Anim Reprod Sci 2020; 213:106281. [PMID: 31987316 DOI: 10.1016/j.anireprosci.2020.106281] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 12/11/2019] [Accepted: 01/09/2020] [Indexed: 11/17/2022]
Abstract
The objectives were to evaluate effects of tropical seasons on thermal biology, preovulatory follicle (POF) diameter, POF and luteal vascularities, and estradiol (E2) and progesterone (P4) concentrations; and to determine the associations among the values for these variables during preovulatory and postovulatory periods in Thai native cows in tropical climates: cold, hot, and rainy seasons. Development and vascularity of the POF and corpora lutea (CL) were evaluated using color Doppler ultrasonography. The temperature-humidity index (THI) was greater when the preovulatory period occurred during the rainy season when compared with the occurrence during the hot and cold seasons of the year. Furthermore, POF diameter was less when the THI was greater. The THI was greater when the postovulatory period occurred during the rainy season when compared to the occurrence of the postovulatory period during the hot and cold seasons of the year. Furthermore, the CL vascularity and P4 concentration were less when the THI was greater. The THI was inversely correlated with CL vascularity and P4 concentrations. When the THI was greatest during the hot and rainy seasons of the year, there were the greatest negative effects on POF size, POF and CL blood flow, and concentrations of E2 and P4 during the preovulatory and postovulatory periods. While native Bos indicus are capable of adapting to tropical conditions, there are still negative effects, such as impaired POF and CL functions, when the THI induces heat stress.
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Affiliation(s)
- Jakree Jitjumnong
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand; Department of Animal Science, National Chung Hsing University, 40227 Taichung, Taiwan
| | - Tossapol Moonmanee
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand.
| | - Paiwan Sudwan
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Raktham Mektrirat
- Department of Veterinary Biosciences and Veterinary Public Health, Faculty of Veterinary Medicine, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Maslin Osathanunkul
- Department of Biology, Faculty of Science, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Chainarong Navanukraw
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, 40002 Khon Kaen, Thailand
| | - Julakorn Panatuk
- Faculty of Animal Science and Technology, Maejo University, 50290 Chiang Mai, Thailand
| | - Punnawut Yama
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Wilasinee Pirokad
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Warittha U-Krit
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - Warunya Chaikol
- Laboratory of Histology and Animal Disease Diagnosis, Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, 50200 Chiang Mai, Thailand
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