OESTRUS SYN CHRONISATION AND THE USE OF BOVINE FOLLICULAR FLUID TO INCREASE REPRODUCTIVE EFFICIENCY IN ETTAWA CROSSBREED GOATS



Aris Junaidi(1*), Sri Gustai(2), Agung Budiyanto(3), I Ketut Sutama(4), Polmer Situmorang(5)

(1) Faculty of Veterinary Medicine, Gadjah Mada University, Sekip Unit II Yogyakarta, Indonesia.
(2) Faculty of Veterinary Medicine, Gadjah Mada University, Sekip Unit II Yogyakarta, Indonesia.
(3) Faculty of Veterinary Medicine, Gadjah Mada University, Sekip Unit II Yogyakarta, Indonesia.
(4) Research Institute for Animal Production, Jl. Banjarbaru, Ciawi, Bogor, Indonesia.
(5) Research Institute for Animal Production, Jl. Banjarbaru, Ciawi, Bogor, Indonesia.
(*) Corresponding Author

Abstract


Twenty mature Ettawa crossbreed goats, one-and-a-half to two years of age and
weighing 23 to 30 kg were used in these experiments. Oestrus was synchronised in
20 Ettawa crossbreed goats with two injections of 6.25 rng prostaglandin given ll
days apart. They were randomised into two equal groups; group I received 3 ml
charcoal-extracted bovine follicular fluid daily at 06.00 and 18.00 on the 12”‘ to 15"‘
day of the synchronised oestrus cycle and group II received an equal volume of
normal saline at the same times. Luteolysis was induced 48 hours after the
treatments began by a single injection of 6.25 mg prostaglandin. The onset of
oestrus was detected three times a day. In the goats of group I, oestrus occurred 52 i 12.6 hours afier the injection of prostaglandin, and in the goats of group H afier 58 17.8 hours. The mean duration of oestrus did not differ significantly between groups
32.8 =4: 5.2 hours in group I compare with 34.6 1 2.3 hours in group H. The early
pregnancy diagnosis by measuring plasma progesterone concentration at 40 days
following AI indicated that in group I, does had higher pregnancy rate (80%) than
the does of group II (60%). However, only 6 does (60%) in group I and 2 does (20%
in group 11 finally deliver kids. These finding suggest that the use of charcoal-
extracted bovine follicular fluid could be used for increasing pregnancy rate and
enhance the twining rate in Ettawa crossbreed goats.


Keywords


Oestrus synchronisation, Superovulation, Prostaglandin, Goats

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