RESPON OVARIUM SAPI LIMOUSIN DAN SIMMENTAL TERHADAP INDUKSI FOLLICLE STIMULATING HORMONE

Abstract

OVARIUM RESPONSE OF LIMOUSIN COWS AND SIMMENTAL COWS ON  
FOLLICLE STIMULATING HORMONE INDUCTION. To assess the effect of
FSH administration on ovarian response rates. and to examine the effect
of synchronizing follicular waves on ovarian response rates and
the acquisition of embryos that are worthy of transfer. This research was
carried out at the Laboratory of Embryo Production of Livestock Embryo
Hall Cipelang Cijeruk district, Bogor regency, for 30 days. The materials
used in this research were 50 cattle consisting of 25 female Limousin
cows and 25 Simmental female cows at the aged around 5-7 years.
They have given birth, and have been superovulated, at the body
condition score (BCS) of 2.5-3.0, at the healthy and given forage and
concentrate (BET protocol). FSH used was the Folltropin®-V brand
superovulation with a dose of 20 mg / ml, the cement used was
in accordance with the type of donor cow, with a concentration of
25 x 106 spermatozoa per straw. Primary data retrieval were done
by observing the focal animal sampling technique requiring direct
observation in the research location where the research material was
located. The variables measured were response rate, number of corpus
luteum (CL) in the left and right ovaries, the total collected embryos
and ovum. Superovulation using Folltropin®-V in Simmental and Limousin
cattle at Cipelang Livestock Embryo gave more significantly effect on
Simmental cattle compared to Limousin cattle. Limousin and Simmental
 cattle supplemented with the hormone Folltropin®-V produced an
average number of CL, embryos and ovum in Simmental cattle higher
than Limousin cattle superovulated with FSH hormone. They have also
a significant effect on the response rate, recovery rate, average
CL number and the average number of embryos. The results obtained
showed that Limousin and Simmental cattle differences significantly
affected the number of collected embryos and ovum, the proportion
of transferable embryos, Degenerate (Dg) embryo proportions and
unfertilized proportion of Embryo Unfertilized (UF).

Keywords: Limousin cows, Simmental cows, Superovulasi, FSH