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Prabowo Purwono Putro
Bagian Reproduksi dan obstetri FKH UGM
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Ovulatory Follicular Dynamics After Estrus Synchronization Using Intravaginal Progesterone Implant in Dairy Cows Prabowo Purwono Putro
Jurnal Sain Veteriner Vol 31, No 2 (2013): DESEMBER
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.127 KB) | DOI: 10.22146/jsv.3509

Abstract

Abstract The study aimed to follow ovulatory follicular dynamics and plasma progesterone profile after estrus synchronization using progesterone intravaginal implant CIDR and its combination with PGF2a and GnRH. A total of 15 non-pregnant dairy cows, 4-5 years of age, healthy and reproductively sound were divided into 3 treatment groups. Treatment 1, CIDR implant was inserted intravaginally for 9 days (CIDR); treatment 2, given CIDR and 250 mg GnRH intramuscularly at implant removal (CIDR + GnRH); treatment 3, CIDR and 25 mg PGF2a at day 7 of implant insertion (CIDR + PGF2a). Transrectal ultrasonographic examination using real time, B-mode, with 7.5 MHz transducer was performed everyday for 12 days to follow ovulatory follicular dynamics. Blood plasma was taken every day for progesterone determination using EIA technique. Data were tested using analysis of variance and correlation analysis. The result indicated that CIDR implant was a potent agent for estrus synchronization with the onset of estrus was 66.18 + 03.42 hours after its removal. The addition of GnRH resulted the highest ovulatory growth rate following the implant removal (1.67 + 0.17a, 1.93 + 0.13b dan 1.53 + 0.20a mm/day, P < 0.05). Insertion of CIDR hampered dominant follicular development and its removal caused rapid follicular growth and followed by ovulation. Its insertion resulted steady increase in plasma progesterone levels and its removal resulted in sudden decrease in the hormonal levels, induced ovulatory follicular development, followed by estrus and ovulation. The CIDR implant also inhibited luteal growth, caused no effect of PGF2a administration on decrease of plasma progesterone levels. Addition of GnRH at the time of CIDR removal enhanced the highest rate of ovulatory follicular growth.  
Ovulatory Follicular Dynamics After Estrus Synchronization using Prostaglandin F2a in Dairy Cows Prabowo Purwono Putro; Asmarani Kusumawati
Jurnal Sain Veteriner Vol 32, No 1 (2014): JUNI
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (269.965 KB) | DOI: 10.22146/jsv.5419

Abstract

The study aimed to follow development of ovulatory follicular dynamics as well as plasma progesterone profile after estrus synchronization using PGF2 and GnRH.   A total of 15 non-pregnant dairy cows, 4-5 years of age, healthy and reproductively sound were used in the present study.     Treatment 1, given intramuscular injection of PGF2 25 mg (PGF2), treatment 2 PGF2 25 mg and GnRH 250 g 2 days later (PGF2-GnRH), and treatment 3 with GnRH 250 g (7 days prior to injection of PGF2), PGF2 25 mg and GnRH 250 g (2 days after injection of PGF2)  (GnRH-PGF2a-GnRH) (the Ovsynch method).   Transrectal ultrasonographic examination using real time, B-mode, with 7.5 MHz tranducer was performed everyday for 12 days to follow ovulatory follicular and luteal dynamics.   Blood plasma was taken every day for progesterone determination using EIA technique.   Data of follicular, luteal development and progesterone levels were tested using analysis of variance and correlation analysis.   The animals showed estrus within 70.70 + 01.90 hours following PGF2 injection.   Prostaglandin F2 induced corpus luteum regression, decreased  in progesterone plasma levels, followed by ovulatory follicular development and eventually underwent ovulation.   Administration of first GnRH increased corpus luteum size, enhanced its regression and decreased plasma progesterone levels, while  the second administration induce  better ovulatory follicular development.   Rate of the corpus luteum regression, progesterone decrease and ovulatory follicular development following PGF2 injection for respective treatments 1, 2 and 3 were 2.53 + 0.24a, 2.73 + 0.36a and 3.53 + 0.28b mm/day; 1.39 + 0.14a,  1.35 + 0.18a dan 1.57 + 0.12b ng/ml/day; and 1.33 + 0.15a,  1.63 + 0.19b and 1.67 + 0.23b mm/day, respectively (P < 0.05).   It can be concluded that PGF2 induced corpus luteum regression, decreased in  progesterone plasma levels and ovulatory follicular development.   Addition of GnRH increased corpus luteum size and plasma progesterone levels,  after PGF2 injection corpus luteum regression and progesterone decrease became more prominent, while ovulatory folliculkar development occurred much better.   . 
The Accuracy of Transrectal Ultrasonography Diagnostic for Examination of Ovarian Structures in Cattle Prabowo Purwono Putro
Jurnal Sain Veteriner Vol 32, No 2 (2014): DESEMBER
Publisher : Fakultas Kedokteran Hewan Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (529.006 KB) | DOI: 10.22146/jsv.6527

Abstract

The study aimed to determine the accuracy of ovarian follicle and corpus luteum measurements in vivo using ultrasonography diagnostic and in vitro after slicing of the ovaries. A total of 15 cows were examined using transrectal ultrasonography just before being slaughtered. Ultrasonographic examination was performed using 7.5 MHz transrectal tranducer on ovaries, measured dominant follicle and corpus luteum diameters. Follicleappeared echogenic, black with round shape. Corpus luteum, appeared as low echogenicity structure and grayish in color.Ovaries were taken out soon after animals slaughtered, soaked in 10% buffered formalin for 12 hours,then cut in thin slices and measured follicle and corpus luteum diameters. Results of follicle and corpus luteum diameter measurements in vitro and in vivo compared using two sample or paired t-test, correlation and regression analyses. The two methods of follicle and corpus luteum measurements had linear orrelation (follicle measurement, R2 = 0.933 , r = 0.966, n = 15, P < 0.05) (corpus luteum, R2 = 0.912, r = 0.955, n = 15, P < 0.05).Measurements of dominant follicle diameter and corpus luteum size manifested the real size of the two ovarian structures. Transrectal ultrasonography diagnostic on ovaries proved to be having high accuracy and reliability for identification, measurement of ovarian structure diameters, follicle and corpus luteum in cattle.
Co-Authors Asmarani Kusumawati