The Effect of Thawing Duration on the Post Thawing Quality of Bali Cattle’s Frozen Semen and Conseption Rate in Smallholder Farms of East Lombok Regency

https://doi.org/10.21059/buletinpeternak.v46i2.71035

Ikhwan Firhamsah(1), Sigit Bintara(2*), Diah Tri Widayati(3)

(1) Fakultas Peternakan, Universitas Gadjah Mada
(2) Fakultas Peternakan, Universitas Gadjah Mada
(3) Fakultas Peternakan, Universitas Gadjah Mada
(*) Corresponding Author

Abstract


This research aimed to identify the effect of the length of thawing time on the quality  of  Bali  cattle postthaw semen and  to  investigate  the resulting pregnancy  rate. This  research  was  conducted  at  Wanasaba  Village,  specifically  Tanaq  Mira  Village, Wanasaba  District,  East  Lombok  Regency.  Five  samples  of  Bali  cattle  semen  were  collected  for  insemination  from  each  of  three  different  farmer  groups.  The  semen sample  from  the  remaining  frozen  semen  inseminated  by  the  inseminator  was  used  in this research. Tanaq Mira Village's inseminator performed thawing during the trip from the  artificial  insemination  (AI)  station  to  the  farmer  group's  location.  This  research observed  the  microscopic  quality  of  the postthaw frozen  semen  covering  motility, viability, and abnormality. Moreover, the pregnancy rate on AI acceptors using the non return  rate (NRR)  parameter  or  the  number  of  female parents who returned to  estrus after being inseminated were observed. The observation was conducted on three farmer groups  with  different  distances  and  lengths  of  thawing  time.  Each  farmer  group  was observed five times. The collected data were then analysed by using one-way analysis of variance(ANOVA). The research indicated that the distance of the farmer group’s location significantly affected (P<0,01) the sperm motility and viability. However, it did not significantly affect (P>0,05) the sperm abnormalities. The Sapeng farmer group had the  highest NRR, as  much  as 80%. According  to the  NRR  score,  it  can  be  concluded that the thawing process  using  the  thermos  within  less  than 10 minutes  resulted  in  the best yield.


Keywords


Abnormality; Bali cattle; Motility; Non return-rate; Thawing; Viability

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DOI: https://doi.org/10.21059/buletinpeternak.v46i2.71035

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