MATERI 7 PERKEMBANGAN KONSEPTUS

Presentasi berjudul: "MATERI 7 PERKEMBANGAN KONSEPTUS"— Transcript presentasi:

1 MATERI 7 PERKEMBANGAN KONSEPTUS
MK. Ilmu Reproduksi LABORATORIUM REPRODUKSI TERNAK FAPET UB

2 LABORATORIUM REPRODUKSI TERNAK FAPET UB
SUB POKOK BAHASAN Proses pembelahan sel zygote Differensiasi sel embrio dan perkembangan embrio awal Proses implantasi Faktor-faktor yang mempengaruhi perjalanan embrio hingga terjadinya implantasi LABORATORIUM REPRODUKSI TERNAK FAPET UB

3 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Ovulation Only fertilized ova are transported into the the uterine horn of the mare Oviduct Unfertilized Ova Ovary Oviductal Transport in the Mare Uterine Horn Blastocyst PGE Release LABORATORIUM REPRODUKSI TERNAK FAPET UB

4 Ovulasi dan Fertilisasi
LABORATORIUM REPRODUKSI TERNAK FAPET UB

5 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Early Embryonic Development Location Day Development Ampullary One cell Isthmic Junction Two Polar Bodies All cell divisions are mitotic Smaller cell size with each cleavage division Separate Blastomere’s for twins Ampullary- Isthmic Junction Two cell Isthmus Four cell Isthmus Eight cell Enters uterus - Even if not fertilized Except Mare - Unfertilized remain in oviduct Uterus Sixteen cell Fuse two morula together for a chimera Uterus Morula LABORATORIUM REPRODUKSI TERNAK FAPET UB

6 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Day Development Compact Morula form tight cell contacts so that Blastocyst formation is possible Tight Morula Early Blastocyst Fills with fluid in center - Cells have established polarity Blastocyst Blastocoel Inner Cell Mass - Forms Embryo Trophoblast - Forms Placenta If split ICM get twins Expanded Blastocyst Contraction and expansion of blastocyst as well as enzymes are involved with zona removal Hatching Blastocyst Picture reproduced with permission of Academic Press In: Physiology and Technology of Reproduction Picture courtesy of Dr. J.E. Flechon LABORATORIUM REPRODUKSI TERNAK FAPET UB

7 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Unpolarized Morula Polarized Morula Inner Cell Mass Blastocoel Blastocyst Trophectoderm Blastocoel LABORATORIUM REPRODUKSI TERNAK FAPET UB

8 LABORATORIUM REPRODUKSI TERNAK FAPET UB

9 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Embrio Hatching Terjadi Implantasi (Ternak Bunting) LABORATORIUM REPRODUKSI TERNAK FAPET UB

10 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Embryo sapi LABORATORIUM REPRODUKSI TERNAK FAPET UB

11 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Blastocyst - Nuclei Inner Cell Mass LABORATORIUM REPRODUKSI TERNAK FAPET UB Photomicrograph courtesy of Dr. Daniel Pomp

12 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Time comparisons from ovulation during cleavage for different farm species 1 cell 8 Cell Blastocyst Enter Uterus Length of Species (hours) (Days) Gestation Cattle Horse Sheep Swine Note - Late entry in mare LABORATORIUM REPRODUKSI TERNAK FAPET UB

13 LABORATORIUM REPRODUKSI TERNAK FAPET UB
Differentiation o f Conceptus Cell Types Inner Cell Mass 1 2 3 Three Layers Form Day 14 Expanded Blastocyst LABORATORIUM REPRODUKSI TERNAK FAPET UB