Garuda - Garba Rujukan Digital

Isolation and number of circulated primordial germ cells (circulated-PGCs) on stages of embryonic development of Gaok chicken T, Kostaman; TL, Yusuf; M, Fahrudin; MA, Setiadi
Indonesian Journal of Animal and Veterinary Sciences Vol 18, No 1 (2013)
Publisher : Indonesian Animal Sciences Society

Avian primordial germ cell (PGCs) show a unique migration pathway during early development. During the early embryonic development, as soon as the formation of blood vessels, PGCs enter the circulatory system and migrate to the gonadal primordial. The aim of this study was to examine the number of circulated-PGCs from Gaok chicken at different developmental stages of embryo. One hundred fertile eggs were divided into 5 groups and incubated in a portable incubator at 38oC and humidity 60%. Hatching was set according to the embryonic development stage between 14-18. The blood collection was done through the dorsal aorta using micropipette under microscope. The collected blood was grouped based on the embryonic stages and placed on a 1.5 ml eppendorf tube which had been filled with 1.000 Âµl of Calcium and Magnesium-free phosphate buffered saline (PBS -). The PGCs were then purified using nycodenz density gradient centrifugation. The results showed that the average number of circulated-PGCs per embryo from Gaok chicken were significantly affected by the stage of embryonic development (P < 0.05). The number of circulated-PGCs at stages 14, 15, 16, 17 and 18 were 42.8 Â± 8.9, 51.0 Â± 5.8, 37.6 Â± 5.9, 32.8 Â± 3.6 and 32.6 Â± 3.2, respectively. However, the number of circulated-PGCs was no different between stage of 17 and 18. At Gaok chicken, the number of circulated-PGCs reach the peak at stage 15, it is recommended that collection of PGCs embryonic chicken from blood circulation was the best on stage 15. This information is useful in efficiency production of germline chimera and to preserve PGCs of other Indonesian native chicken. Key Words: Gaok Chicken, PGCs, Embryonic Development Stages

Effect of glycerol and dimethylformamide cryoprotectants on buck Etawah Crossbreed frozen semen using modified tris diluents. OS, Ariantie; TL, Yusuf; D, Sajuthi; RI, Arifiantini
Indonesian Journal of Animal and Veterinary Sciences Vol 18, No 4 (2013)
Publisher : Indonesian Animal Sciences Society

A cryoprotectan is component that must be present in a cryopreservation medium to minimize the physical and chemical stresses resulting from the cooling, freezing and thawing of sperm cells. This study was carried out to determine the effect of glycerol (G) and dimethylformamide (DMF) as cryprotective agent in tris-egg yolk (TEY) trehalose (T) and tris-soya (TS) raffinose (R) diluents. Semen were collected from three sexually mature bucks using artificial vagina, evaluated and divided into four aliquot. Each of them was diluted with TEY suplemented with 50 mM trehalose and TS supplemented with 50 mM raffinose, added with glycerol or DMF 4% (v/v). Diluted semen was packed in minitube straw (100 x 106 sperm/0.25 mL) and equilibrated for 4 hours at 5Â°C, then freeze in N2 vapor for 10 minutes in styrofoam box and stored in liquid N2 container (-196) until futher evaluation. Progressive motility, viability and plasma membrane intact were evaluated after thawed at 37Â°C for 30 seconds factorial experimental design (2 x 2) was used in this study. The sperm motility in TEYTG was significantly higher (65.07Â±5.38%) compared to TEYTDMF (61.67Â±5.55%). In contrast sperm diluted with TSRDMF indicated better motility (42.22Â±8.13%) than TSRG (39.07Â±5.38%). It was concluded that cryoprotectant had different effect on different diluents. Key Words: Buck Etawah Crossbreed, Cryoprotectant, Diluent, Frozen Semen

Formation of germline chimera Gaok chicken used circulation primordial germ cells (circulation PGCs) fresh and thawed T, Kostaman; TL, Yusuf; M, Fahrudin; MA, Setiadi; AR, Setioko
Indonesian Journal of Animal and Veterinary Sciences Vol 19, No 1 (2014)
Publisher : Indonesian Animal Sciences Society

Formation of germline chimeras by transfer of chicken primordial germ cells (PGCs) is one of the effective techniques for preservation and regeneration of genetic resources in chickens. This study attempted to form germline chimeras of Gaok chicken buy purifying circulated PGCs of donor embryo before it is transferred to the recipient (White Leghorn chickens=WL) and studied the ability of recipient embryo on survival in incubators, and hatchability. This study used 200 fertile eggs of Gaok and 90 fertile WL breed all of the eggs was incubated at 380C and 60% humidity in a portable incubator. PGCs-circulation of the blood collected Gaok embryos at stage 14-16 were taken from the dorsal aorta, and then purified by centrifugation method using nycodenz. PGCs-circulation results further purification frozen in liquid nitrogen before being transferred to the recipient embryo. The results showed that for the development of embryos transferred to the fresh circulation of PGCs-circulation as many as 25 cells can survive up to day 14, while one of the transferred of 50 and 100 cells into recipient embryos was hatched (10%). On the contrari recipient embryos that are transferred to the frozen PGCs-circulation the embryos development was shorter, and only survived until day 10th (treatment 25 cells), day 14th (treatment of 50 cells) and day 17th (treatment of 100 cells). It is concluded that the amount of PGCs-circulation embryos transferred to the recipient is one factor that influence the success of the development germline chimeras. Key Words: Gaok Chicken, White Leghorn Chicken, Circulated PGCs, Transfer, Germline Chimera

Isolation and number of circulated primordial germ cells (circulated-PGCs) on stages of embryonic development of Gaok chicken Kostaman T; Yusuf TL; Fahrudin M; Setiadi MA
Jurnal Ilmu Ternak dan Veteriner Vol 18, No 1 (2013): MARCH 2013
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Avian primordial germ cell (PGCs) show a unique migration pathway during early development. During the early embryonic development, as soon as the formation of blood vessels, PGCs enter the circulatory system and migrate to the gonadal primordial. The aim of this study was to examine the number of circulated-PGCs from Gaok chicken at different developmental stages of embryo. One hundred fertile eggs were divided into 5 groups and incubated in a portable incubator at 38oC and humidity 60%. Hatching was set according to the embryonic development stage between 14-18. The blood collection was done through the dorsal aorta using micropipette under microscope. The collected blood was grouped based on the embryonic stages and placed on a 1.5 ml eppendorf tube which had been filled with 1.000 µl of Calcium and Magnesium-free phosphate buffered saline (PBS -). The PGCs were then purified using nycodenz density gradient centrifugation. The results showed that the average number of circulated-PGCs per embryo from Gaok chicken were significantly affected by the stage of embryonic development (P < 0.05). The number of circulated-PGCs at stages 14, 15, 16, 17 and 18 were 42.8 ± 8.9, 51.0 ± 5.8, 37.6 ± 5.9, 32.8 ± 3.6 and 32.6 ± 3.2, respectively. However, the number of circulated-PGCs was no different between stage of 17 and 18. At Gaok chicken, the number of circulated-PGCs reach the peak at stage 15, it is recommended that collection of PGCs embryonic chicken from blood circulation was the best on stage 15. This information is useful in efficiency production of germline chimera and to preserve PGCs of other Indonesian native chicken. Key Words: Gaok Chicken, PGCs, Embryonic Development Stages

Microencapsulation of bull spermatozoa: Its viability in alginate-egg yolk media Kusumaningrum DA; Purwantara B; Yusuf TL; Situmorang P
Jurnal Ilmu Ternak dan Veteriner Vol 20, No 1 (2015): MARCH 2015
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Microencapsulation of spermatozoa is a process to entrap a number of spermatozoa in microcapsule. Alginate, as a natural polymer polysaccharide is commonly used in cell microencapsulation. Tris Yolk Citrate buffer is a good buffer for spermatozoa dilution, therefore this experiment aimed to determine optimal concentration of alginate and egg yolk to sperm quality in bull spermatozoa microencapsulation. Concentration of egg yolk and alginate in media of encapsulation were determined in applications of sperm microencapsulation. Four bulls were used as semen source and only semen with good quality were used in this study. Poolled semen was diluted using the medium to get final concentration 100 x 106 cell/ ml. The first study was conducted to determine the effect of concentration of alginate (0, 1, and 1.5%) on viability of spermatozoa. The second study to determine the effect of alginate concentration, egg yolk and its interaction was done by comparing two levels of alginate (1 and 1.5%) with four levels of egg yolk (5, 10, 15 and 20%). Viability of spermatozoa, motility (M), live spermatozoa (L) and Intact Apical Ridge (IAR) were observed at 0, 1, 2 and 3 h incubation at room temperature. Results indicated that alginate concentration increased the osmolality and viscosity but did not affect pH of the medium. The osmolality and viscosity of medium were 275, 325, 425 and 1.12, 26.62, 47.98 for concentration of alginate 0, 1 and 1.5% respectively. Percentage of motility is significantly lower (P<0.05) in alginate medium than those of control, and 1.5% alginate could produce more uniform beads. Concentration of alginate, egg yolk and its interaction did not significantly affect viability of sperm. It is concluded that the combination of 1.5% alginate with 5, 10, 15 or 20% egg yolk can be used as media for sperm encapsulation.

Formation of germline chimera Gaok chicken used circulation primordial germ cells (circulation PGCs) fresh and thawed Kostaman T; Yusuf TL; Fahrudin M; Setiadi MA; Setioko AR
Jurnal Ilmu Ternak dan Veteriner Vol 19, No 1 (2014): MARCH 2014
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Formation of germline chimeras by transfer of chicken primordial germ cells (PGCs) is one of the effective techniques for preservation and regeneration of genetic resources in chickens. This study attempted to form germline chimeras of Gaok chicken buy purifying circulated PGCs of donor embryo before it is transferred to the recipient (White Leghorn chickens=WL) and studied the ability of recipient embryo on survival in incubators, and hatchability. This study used 200 fertile eggs of Gaok and 90 fertile WL breed all of the eggs was incubated at 380C and 60% humidity in a portable incubator. PGCs-circulation of the blood collected Gaok embryos at stage 14-16 were taken from the dorsal aorta, and then purified by centrifugation method using nycodenz. PGCs-circulation results further purification frozen in liquid nitrogen before being transferred to the recipient embryo. The results showed that for the development of embryos transferred to the fresh circulation of PGCs-circulation as many as 25 cells can survive up to day 14, while one of the transferred of 50 and 100 cells into recipient embryos was hatched (10%). On the contrari recipient embryos that are transferred to the frozen PGCs-circulation the embryos development was shorter, and only survived until day 10th (treatment 25 cells), day 14th (treatment of 50 cells) and day 17th (treatment of 100 cells). It is concluded that the amount of PGCs-circulation embryos transferred to the recipient is one factor that influence the success of the development germline chimeras. Key Words: Gaok Chicken, White Leghorn Chicken, Circulated PGCs, Transfer, Germline Chimera

Effect of glycerol and dimethylformamide cryoprotectants on buck Etawah Crossbreed frozen semen using modified tris diluents. Ariantie OS; Yusuf TL; Sajuthi D; Arifiantini RI
Jurnal Ilmu Ternak dan Veteriner Vol 18, No 4 (2013): DECEMBER 2013
Publisher : Indonesian Center for Animal Research and Development (ICARD)

A cryoprotectan is component that must be present in a cryopreservation medium to minimize the physical and chemical stresses resulting from the cooling, freezing and thawing of sperm cells. This study was carried out to determine the effect of glycerol (G) and dimethylformamide (DMF) as cryprotective agent in tris-egg yolk (TEY) trehalose (T) and tris-soya (TS) raffinose (R) diluents. Semen were collected from three sexually mature bucks using artificial vagina, evaluated and divided into four aliquot. Each of them was diluted with TEY suplemented with 50 mM trehalose and TS supplemented with 50 mM raffinose, added with glycerol or DMF 4% (v/v). Diluted semen was packed in minitube straw (100 x 106 sperm/0.25 mL) and equilibrated for 4 hours at 5°C, then freeze in N2 vapor for 10 minutes in styrofoam box and stored in liquid N2 container (-196) until futher evaluation. Progressive motility, viability and plasma membrane intact were evaluated after thawed at 37°C for 30 seconds factorial experimental design (2 x 2) was used in this study. The sperm motility in TEYTG was significantly higher (65.07±5.38%) compared to TEYTDMF (61.67±5.55%). In contrast sperm diluted with TSRDMF indicated better motility (42.22±8.13%) than TSRG (39.07±5.38%). It was concluded that cryoprotectant had different effect on different diluents. Key Words: Buck Etawah Crossbreed, Cryoprotectant, Diluent, Frozen Semen

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search