ESTIMASI NILAI REPITABILITAS DAN PERFORMA PRODUKSI UMUR LAHIR DAN SAPIH INDUK BABI PERANAKAN LANDRACE (The estimate of repitability value and performances at birth and weaning age of landrace crossbred)

The aims of this research  were to  estimate   repitability  coefficients of production  at birth  and  weaning characters  and to determine the average and standard deviation  of landrace  crossbreed sows. This research  was carried out in two breeding farms namely the Instalation of Pig Breeding, village of Tarus, Kupang Regency and the Manise Pig Farm, Village of Oetete, Kupang City, East  Nusa  Tenggara.   Materials used  15heads  landrace  crossbreed  sows ( 15  heads ) which born and weaned piglets  during the study periode.  The number of piglets for the first parity was 151heads and for the second parity was  162heads. All  sows  was  mated by artivicial insemination  with  boars of  landrace  crossbreed.   Variables were  liter size, weaning rate, birth weight, weaning  weight and weaning  rate.  Results  showed that landrace  crossbreed sows had the  average and  deviation standard for  the first and second liter size were 10.00±1.50heads  and  10.73±2.40heads, respectively;  for the first and second  birth weight were 1.37±0.23kg and 1.68±0.34kg, respectively;  for the first and second weaning  weight were  6.42±0.38kg  and  6.72±0.51kg, respectively  and for the first and second weaning rate were 8.33±1.28heads and  8.68±1.43 heads; respectively.  The average of litter size, birth weight, weaning weight and weaning rate between the first and second  parity  was no difference (P > 0,05). The  value of  repeatabitily for  characters  of  liter size, birth weight, weaning weight  and  weaning  rate   were  0.32; 0.47;  0.49 and 0,42; respectively.   In  conclusion,  the   repeatabily value   of litter  size,  birth weight, weaning  weight and weaning rate from landrace  crossbred sows were  medium value  and the performance of  those characters between  the first  and  second parity were  no difference

PENGARUH LAMA EKUILIBRASI TERHADAP KUALITAS SEMEN BEKU BABI DUROC DALAM PENGENCER TRIS-MODIFIKASI DENGAN PENAMBAHAN KRIOPROTEKTAN (Effect of equilibration time on frozen sement quality of the duroc pig in tris diluents modification With.....

The purpose of this study was to test the influence of the equilibration time on the frozen semen quality of duroc pig in modified tris-egg yolk with the addition of extracellular cryoprotectants. Semen is collected twice per week using massage methods from two duroc males aged ±2.5 years which in good health and have been trained in semen colection. The design used is a completely randomized design with 4 tests and 3 treatments T1: equilibration time of 1 hour, T2: equilibration time of 2 hours, T3: equilibration time of 3 hours at a temperature of 50C. Observed parameters were motility, viability, abnormality, MPU, and recovery rate (RR). The results showed that motility, viability, abnormalities, MPU, and RR were higher (P<0.05) at 2 hours of equilibration (25.63±3.15%, 55.86±5.41%, 4.92±0.53%, 56.69±5.64%, 36.61±4.49%) compared to 1 and 3 hours (20.00±3.54%, 39.28±9.89%, 7.93±0.76%, 40.21±9.39%, 28.57±5.05%) and (15.00±4.08%, 32.19±7.0%, 8.41±0.70%, 32.71±7.07%, 21.43±5.83%). It was concluded the motility of duroc pig spermatozoa in the tris-modified diluents after 2 hours of equilibration reached 64.375% and 25.63% post thawing, but did not reach the requirement of 40% spermatozoa motility for artificial insemination. It was concluded that the sperm motility of Duroc pig in tris-modified diluent after 2 hours of equilibration reached 64.375% and 25.63% post thawing, but did not reach the standard of 40% spermatozoa motility for artificial insemination

The Estimate of Repitability of Performances at Birth and Weaning Age of Duroc Crossbred Sows

The aims of this study were to determine the average and standard deviation and to  estimate   repitability  coefficients of production  at birth  and  weaning characters of duroc crossbred sows. The study  was carried out in two breeding farms namely the Instalation of Pig Breeding, village of Tarus, Kupang Regency and the Manise Pig Farm, Village of Oetete, Kupang City, East  Nusa  Tenggara (NTT).   Materials used  duroc  crossbred  sows ( 15  heads ) which born and weaned piglets  during the study periode.  All  sows  was  mated artivicialy  with  boars of  duroc crossbred.   Variables were  liter size, weaning rate, birth weight and weaning  weight.  Analysis of  statistical description was  used to determine the  average  and  deviation standard  of  liter  size,  weaning  rate,  birth  and  weaning  weights. Effects  between paritas was analysed using  t-test  and the  interclass correlation was used to calculate  the  coefficient of  repitability.  Results  showed that duroc crossbred sows had the  average and  deviation standard for  the first and second liter size 9.87±1.80 head  and  10.67±2.58  head;  for the first and second  birth weight  1.30±0.26  kg and 1.47±0.47 kg, for the first and second weaning  weight  6.01±0.49 kg  and  6.47±0.61 kg  .and for the first and second weaning rate 8.20±1.78 head and  8.53±2.23 head; respectively.  The average of litter size, birth weight, weaning weight and weaning rate between the first and second  parity  was no difference (P > 0,05). The  coefficients of  repeatabitily for  characters  of  liter size, birth weight, weaning weight  and  weaning  rate   were  0.48; 0.30;  0.46 and 0,52; respectively.   In  conclution,  the  coefficients  of repeatabily  of litter  size,  birth weight  and weaning  weight from duroc  crossbred sows were  medium  and that  for weaning rate  was high value  and the performance of  characters between  the first  and  second parity were  relatively same