REPLACEMENT BOAR Flashcards
T or F: Greater selection is possible with boars than gilts since in most herd, one boar is selected for every 15-20 gilts
TRUE
The ff. traits should be considered.
- BEHAVIOR
- SOW PRODUCTIVITY
- PERFORMANCE
- BACKFAT
- REPRODUCTIVE SOUNDNESS
- COFORMATION
The boar should reach how many kg at 155 days?
104kg
Boar should consume about how many kg of feed per 45 kg gain weight.?
125 kg
has a very high heritability externally it can be measured by leanness of the animal.
BACKFAT
A boar of about 104 kg should have a backfat of how manu cm.?
1.5 cm or less
REPRODUCTIVE SOUNDNESS :
- Spacing number & presentation of teats
- genetic abnormalities & mating ability
physical soundness of fet and leg:
- w/ medium to large bone
- wide stance both front and rear feat
- free in movement
- good cushion
- equal size of toes
6, bone size & strength
includes body length, dept & skeletal size & shapes, boar musculinity & testicular development
CONFORMATION
7 or less age in month how many services per week.?
none
in age of 8-10 months how many number services per week?
1 or every 5-10 days
in age of 11 months how many number services per week?
1 or 4 days
in age of 12 months how many number services per week?
2 or every 3 days
in age of 18 months and over how many number of service per week?
3-7 or every other daysToo lo
this inhibits production of fresh & result into a very low fertility level.
STALE SEMEN
T or F : the service is a very cruscial point in a young boar’s life, it’s important that the first mating should be with a suitable female that knows the rudiments of mating.
true
T or F: the female should not be nervous, shaky, & elusive
True
T or F: the 1st service should not be a failure so as not to frustrate & depress the boar
true
T or F: the female should be full heat, quiet & cooperative to give the boar full satisfaction & self-confience.
true
if there is only 1 boar & is 12 moths or older, it can serve how many sows? and how many services per sows?
15 sows or less & 2 services/sows
if there is 2 boars & is less than 12 months, it can sereves how many sows? and how many serves per sows?
15-25 sows & 2 services/sows
if there is only 1 YOUNGE boar & female are all gilts, how many sows can he served & how many served per gilts?
20 gilts & 1 serves per heat period
if there’s only 1 boar & 12 months old or OLDER how many sows will he be able to served on how many serve per heat period.
30 sows or less & 1 services / heat period.
Fertility check of the boar by examining the:
COLOR
CONCENTRATIONS
MOTILITY
VOLUME OF SEMEN.
it produces sperm in the seminiferous tubules.
TESTIS
it protect the testis & regulates temperature of testis
SCROTUM
Sperm maturation & storage
EPIDIDYMIS
Passageway for urine & semen
URETHRA
Aids in erection
SIGMOID FLEXURE
Semen delivery to cervix
GLANS PENIS
produces LH & FSH that acts in inregulating sperm TESTOSTERONE production
ANTERIOR PITUITARY
in terms of feeding how many kg is to be given?
2.0 kg per/day
if thin or fat you must less it or add how many kg?
0.5 kg
This will help harden the claw horn.
FOOTBATH TREATMENT w/ 5% copper sulfate , 5% FORMALIN
vaccination of boars is done every?
6 months (refere to drug vit.)
deworming & mange tx?
3-4 times a year
Vit. ADE injection
1-2 times a month
HC vaccine
6 months of age
FMD vaccine
6.5 months of age
Parvovirus vaccine
Pseudorabies vaccine
7 months of age
this service is considered as the most crucial point, in young boar’s life.
1st service
before mating the female should not be:
- shaky, nervous, & elusive
Footbath treatment. This will help harden the claw horn. Do it once in a
week with the following solution
5% COPPER SULFATE, 5%
FORMALIN.
It is believed that ovulation takes place______ hours after the onset of estrus (standing heat).
40 hours
