ciclo folicular
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Transcript of ciclo folicular
PROGRAMAS DE SINCRONIZACIÓN ESTRALSINCRONIZACIÓN ESTRAL
M.V.Z.,M.C. ERIC FRAGA ESCAMILLA
Ho
rmo
na
l
Ovulación
Ovulación
Dominancia
PGF2αααα
FSH
E2
LH
EL CICLO ESTRAL
CL Progesterona
Estro Estro5 10 15
Co
nce
ntr
aci
ón
Ho
rmo
na
l
Endometrio PGF2αααα
Seleción
Atresia
Reclutamiento
FASE LUTEÍNICACUERPO LÚTEO ACTIVO
NIVELES ALTOS DE PROGESTERONA
P4
Sincronización de celos
1) Prostaglandina F2a
Hormonas
1) Prostaglandina F2a
(2) Progesterona
(3) Estrógenos
(4) GnRH
PROGESTAGENOSIMPLANTE AURICULAR
CRESTAR: PROTOCOLO BÁSICO
�
�
CRESTAR (PABELLÓN AURICULAR)�
• Implante CRESTAR
RETIRO
�
INYECCIÓN NORG+V.E. (2 ml)
INSEMINACIÓNARTIFICIAL
• Implante CRESTAR
• 9 ó 10 días 48 hrs
CRESTAR: GANADO DE CARNE CON CRÍA
�
�
CRESTAR (PABELLÓN AURICULAR)�
• Implante CRESTAR
RETIRO
�INYECCIÓN NORG+V.E. (2 ml)
INSEMINACIÓNARTIFICIAL
• Implante CRESTAR
• 9 ó 10 días 56 hrs
FOLIGON(500 UI IM)
�
CRESTAR: GANADO LECHERO (VAQUILLAS)
Implantación� IARetiro
�
�
��
56 horas
InyecciónCRESTAR
• Implante CRESTAR
• 9 ó 10 días
48 hrs
�FOLLIGON(500 UI IM)
PROSOLVIN2ml (IM)
FIG. 1. Classification of the days of the
bovine estrous cycle based on ovarian
structures. Pair of ovaries from one
cow at
a particular day(s) of the estrous cycle
is
shown. Detailed descriptions for
classification
of different days of estrous cycle are
presented in Table 1.
Plate 1. Days 1–3. 1, External view of
growing CL; 2, external view of growing CL; 2, external view of
regressed
CL of previous cycle; 3, internal view of
growing CL; 4, internal view of
regressed
CL(s) of previous cycle(s)
Plate 2. Days 4–6. 1, External view of
growing CL; 2, internal view of growing
CL; 3, follicle.
Plate 3. Days 7–9. 1, External view of
growing CL; 2, external view of
regressed
CL of previous cycle; 3, internal view of
growing CL; 4, follicle.
Plate 4. Days 10–12. 1, External view
of
growing CL; 2, growing blood vessels;
3,
follicle; 4, internal view of growing CL.
FIG. 1. Continued.
Plate 5. Days 13–15. 1, External view
of
growing CL; 2, well-developed blood
vessels;
3, follicle; 4, internal view of growing
CL.
Plate 6. Days 16–18. 1, External view
of
regressing CL; 2, regressing blood regressing CL; 2, regressing blood
vessels;
3, follicle; 4, internal view of regressing
CL.
Plate 7. Days 19–21. 1, External view
of
regressing CL; 2, follicle; 3, internal
view
of regressing CL.
Plate 8. 1, External view of CL of
pregnancy;
2, well-developed blood vessels; 3,
internal view of CL of pregnancy.
FIG. 2. Examples of the four grades of oocytes (Grades l–4) are shown, with Grade 1 being assessed as the highest
quality oocyte.
A) Grade 1. Compact cumulus (.4–5 layers) with a homogeneous ooplasm.
B) Grade 2. Compact cumulus of one to two layers with homogeneous ooplasm having a coarse appearance.
C) Grade 3. Less compact cumulus (slightly expanded cumulus) with irregular ooplasm containing dark clusters.
D) Grade 4. Denuded oocyte or expanded cumulus, irregular ooplasm.
Dominancia
PGF2αααα
FSH
E2
LH Ovulation
Horm
on
e co
nce
ntr
ati
on
Estrus 5 10 15
Reclutamiento
Seleción
Atresia