Evaluation of boar semen extended in belt`s ville thaw solution
By: Kantharaj S.
Contributor(s): Athman K V (Guide).
Material type:
BookPublisher: Mannuthy Department of Animal Reproduction, College of Veterinary and Animal Sciences 2001DDC classification: 636.082 Online resources: Click here to access online Dissertation note: MVSc Abstract: An experiment was conducted to study the effect of
natural service and artificial insemination on reproductive
performance of pigs and to assess the fertility and
preservability of boar semen extended in Belt's ville thaw
solution.
Twenty-four Large White Yorkshire (LWY) gilts,
twenty-four sows and six LWY boars were selected for the
study. Out of six boars, three boars were used for natural
service and the other three maintained for artificial
insemination purpose.
A total of 52 ejaculates were collected from boars
maintained for artificial insemination purpose at weekly
intervals by the gloved hand technique. Among these boars, no
significant differences were found for most of the semen
characteristics except proximal and distal protoplasmic
droplets , which were significantly different between boars
(P<O.05). Negative correlation between total volume of
ejaculate and sperm concentration was observed. No
significant correlation between total sperm abnormalities and
live sperm count could be detected.
Twenty ejaculates from these boars were used for
preservation studies. No significant variation In the
preservability of spermatozoa could be detected between
boars, whereas, there was a highly significant difference
(p<O.O 1) in the preservability of spermatozoa between hours of
preservation.
Twelve LWY gilts and twelve sows (Group-I) and
three boars were used for natural service. Each gilt and sow
was mated twice during the oestrus. Twelve gilts and twelve
sows (Group-Il) were artificially inseminated twice during the
oestrus with the semen diluted in BTS.
There was a significant difference (P<0.05) In the
duration of oestrus between gilts and sows. There was a
marginal difference in the conception rates between naturally
served and artificially inseminated gilts and sows. The
farrowing rate was 100 per cent for both naturally served and
artificially inseminated gilts and sows. There was a significant
difference in the gestation length between artificially
inseminated gilts and sows. There was a significant variation•
in the litter size between naturally served and artificially
inseminated gilts and sows.
It can be concluded from the study that artificial
insemination In pIgS could well be performed under
commercial farming conditions for effective disease control
and increased productivity.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 636.082 KAN/EV (Browse shelf) | Available | 171706 |
MVSc
An experiment was conducted to study the effect of
natural service and artificial insemination on reproductive
performance of pigs and to assess the fertility and
preservability of boar semen extended in Belt's ville thaw
solution.
Twenty-four Large White Yorkshire (LWY) gilts,
twenty-four sows and six LWY boars were selected for the
study. Out of six boars, three boars were used for natural
service and the other three maintained for artificial
insemination purpose.
A total of 52 ejaculates were collected from boars
maintained for artificial insemination purpose at weekly
intervals by the gloved hand technique. Among these boars, no
significant differences were found for most of the semen
characteristics except proximal and distal protoplasmic
droplets , which were significantly different between boars
(P
significant correlation between total sperm abnormalities and
live sperm count could be detected.
Twenty ejaculates from these boars were used for
preservation studies. No significant variation In the
preservability of spermatozoa could be detected between
boars, whereas, there was a highly significant difference
(p
Twelve LWY gilts and twelve sows (Group-I) and
three boars were used for natural service. Each gilt and sow
was mated twice during the oestrus. Twelve gilts and twelve
sows (Group-Il) were artificially inseminated twice during the
oestrus with the semen diluted in BTS.
There was a significant difference (P<0.05) In the
duration of oestrus between gilts and sows. There was a
marginal difference in the conception rates between naturally
served and artificially inseminated gilts and sows. The
farrowing rate was 100 per cent for both naturally served and
artificially inseminated gilts and sows. There was a significant
difference in the gestation length between artificially
inseminated gilts and sows. There was a significant variation•
in the litter size between naturally served and artificially
inseminated gilts and sows.
It can be concluded from the study that artificial
insemination In pIgS could well be performed under
commercial farming conditions for effective disease control
and increased productivity.
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