H Martojo
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Morphology growth curve of female cross breed duck between Pekin and White Mojosari Suparyanto, A; Martojo, H; Hardjosworo, P.S; Prasetyo, L.H
Indonesian Journal of Animal and Veterinary Sciences Vol 9, No 2 (2004)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v9i2.414

Abstract

Morphological growth is a very dynamic process. It is reflected the changes of body structure affected by genetic and environmental responses. Each parameter had different growth curve sigmoid pattern those expressed different characteristics. Phenotypic growth data were collected from female ducks resulted from crossbreed between Pekin male and White Mojosari. The hatchers were twicely collected, the first collection was 69 heads and then they were 89 heads. Equation of non-linier regression is determined by Gompertz model using the Marquardt method. Result showed that fast growth happened from the start to 30 days old. Estimation values of circumstance and depth brest length variables were 30 and 83 mm respectively. In the first derivation, the maximum size of back and brest were observed on 16 weeks old. In the second derivation the maximum sizes of wide hip, wide and depth brestes were reached for longer time, those were 22 to 25 weeks. Meanwhile, the correlation between parameter A (body mature) and k (rate of mature) was negative. Every variable had different oscillation slopes, the slope of two infexion points of the original curve or they were variative.     Key words: Duck, growth curve, morphology, crossbreed
Milk production capacity of priangan prolific sheep: II. The lactation curve Tiesnamurti, B; Inounu, I; ., Subandriyo; Martojo, H
Indonesian Journal of Animal and Veterinary Sciences Vol 8, No 1 (2003)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.545 KB) | DOI: 10.14334/jitv.v8i1.369

Abstract

A calculation was made for the lactation curve of Priangan sheep using Wood equation to find out how much differences actual milk production of uncorrected ewes compared to those corrected using parity and litter size born. Milk production was measured using weighing of the lambs before and shortly after suckling, with average of daily and total milk production were 519.5 g/head and 43.6 kg head-1 lactation-1, respectively. The average of parameter a, which reflected milk production at the beginning of the lactation period was 6.296 that equivalent to 571.5 g/head and significantly affected (P<0.05) by parity. The b parameter which reflected the rate of milk increment at the beginning of the lactation period was found to be 0.528 and significantly affected (P<0.05) by parity. The c parameter which reflected the rate of milk decline at the end of lactation period was found to be -0.20 and significantly affected (P<0.05) by parity. The average persistency which reflected the duration of maximum milk production was found to be 22.58 days without any significant contribution of parity and the number of lamb born. The average time to reach maximum milk production was found to be at week 3.5 after lambing without any significant contribution of parity and litter size. The average estimation of maximum milk production was 708.4 g/head and significantly affected (P<0.05) by ewe parity.   Key words: Milk production, lactation curve, Priangan sheep
Prolactin promoter gene as marker assisted selection (MAS) for the control of broodiness of Kampung chicken Sartika, Tike; Mansjoer, S.S; Saefuddin, A; Martojo, H
Indonesian Journal of Animal and Veterinary Sciences Vol 9, No 4 (2004)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v9i4.433

Abstract

Preliminary research about MAS (Marker Assisted Selection) was conducted to detect broodiness trait of Kampung chicken. MAS currently is very important in situations, where the accuracy of selection is low, such as, traits with low heritability, e.g. broodiness trait and egg production. Prolactin promoter was selected as a marker gene for broodiness because it plays a critical part in the neuroendocrine cascade which is triggered at the onset of broodiness. DNA samples were collected from low and highbroodiness samples on basic population (G0) each 24 samples, and from selected population (G3) each 28 samples. As control population without broody behavior was used 16 samples White Leghorn (WL) chicken. Prolactin promoter gene was amplified using polymerase chain reaction (PCR). PCR product was analyzed using electrophoresis agarose gel 2%. The results showed four types of bands represent in the Kampung chicken, three types called as wild type band and one type as the WL band. The chickens with low and high broodiness on G0 generation have 75 and 87.5% of wild type band while in the G3 generation was decreased to 25 and 75%. Conclusions of the research indicated that the selected breed of the Kampung chicken on G3 generation increased WL band like White Leghorn chicken as much as 31,25% from the G0 generation.   Key words: Kampung chicken, prolactin promoter, MAS
Estimation of genetic distance of rabbit by morphometric analysis Brahmantiyo, B; Martojo, H; Monsjoer, S.S; Raharjo, Y.C
Indonesian Journal of Animal and Veterinary Sciences Vol 11, No 3 (2006)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v11i3.527

Abstract

The observation on morphological body conformation of English Spot (ES), Flemish Giant (FG), New Zealand White (NZWm), and Rex (Rexm) from Magelang, Central Java, and New Zealand White (NZWb), Rex (Rexb), Satin (Satin) and RS (RS) from Balitnak-Ciawi, were carried out to determine estimation of Mahalanobis genetic distance.  This research was held in Magelang (Central Java) and Balitnak-Ciawi (West Java), 237 heads of Rabbits were used. Eleven different body parts were measured, those were head (length and width), ear (length and width), chest (girth, depth, and width), humerus length, radius-ulna length, tibia length and body length. General Linear Models were used in this observation (SAS package program). Simple discriminant analyses as further analyses were done for head (length and width), chest (girth, depth, and width), humerus length, radius-ulna length, tibia length and body length. ES, FG and NZWm rabbits had morphological size bigger than others. Mahalanobis genetic distance showed that NZWm and NZWb, Rexm and Rexb were had differences with genetic distances of 5.89139 and 6.75571 respectively. Rabbits from Magelang and from Balitnak were different on morphometric with mahalanobis distance of that region ranges were 4.89426 to 6.96749. Results from canonical analysis showed that the most discriminant variables were obtained by chest girth, chest width and humerus length on first canonical and head length on second cannonical. Key Words: Rabbit, Genetic Distance, Morphometric
Satin and their crossbred rabbit production Brahmantiyo, Bram; Raharjo, Y.C; Martojo, H; Mansjoer, S.S
Indonesian Journal of Animal and Veterinary Sciences Vol 15, No 2 (2010)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v15i2.651

Abstract

Rabbit productivity in intensive management to be evaluated considering development in the rabbit farming were rapidly increased. Rex, Satin and their crossbred (Reza) rabbits have been developed in Research Institute for Animal Production and productivity information of each breed can be used as basis for policy or model of cultivation and breeding in the community. Research conducted by evaluating the productivity of growth, carcass and the carcass proportion of the three strains of rabbit. Rex and satin growth were no different, and Reza was higher at 12-14 weeks of age. Carcass production comes from cutting the rabbit at the age of six months, this trait is strongly influenced by the weight of rabbits, and Reza gives the lowest performance compared to Rex and Satin. Rex, Satin and Reza were medium type rabbits with dual-purpose product (fur and meat). These rabbits showed the childs growth is good enough, to adapt the environment temperature and high food and have adequate carcass production. Key Words: Rabbit, Rex, Satin, Reza, Growth, Carcass
Pertumbuhan persilangan pelung X kampung pada pemeliharaan intensif Darwati, S; Martojo, H
Media Peternakan Vol 24, No 2 (2001): Media Peternakan (Supplement Edition: Animal Production)
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1775.643 KB)

Abstract

Pertumbuhan persilangan pelung X kampung pada pemeliharaan intensif
Prolactin promoter gene as marker assisted selection (MAS) for the control of broodiness of Kampung chicken Sartika, Tike; Mansjoer, S.S; Saefuddin, A; Martojo, H
Jurnal Ilmu Ternak dan Veteriner Vol 9, No 4 (2004): DECEMBER 2004
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.539 KB) | DOI: 10.14334/jitv.v9i4.433

Abstract

Preliminary research about MAS (Marker Assisted Selection) was conducted to detect broodiness trait of Kampung chicken. MAS currently is very important in situations, where the accuracy of selection is low, such as, traits with low heritability, e.g. broodiness trait and egg production. Prolactin promoter was selected as a marker gene for broodiness because it plays a critical part in the neuroendocrine cascade which is triggered at the onset of broodiness. DNA samples were collected from low and highbroodiness samples on basic population (G0) each 24 samples, and from selected population (G3) each 28 samples. As control population without broody behavior was used 16 samples White Leghorn (WL) chicken. Prolactin promoter gene was amplified using polymerase chain reaction (PCR). PCR product was analyzed using electrophoresis agarose gel 2%. The results showed four types of bands represent in the Kampung chicken, three types called as wild type band and one type as the WL band. The chickens with low and high broodiness on G0 generation have 75 and 87.5% of wild type band while in the G3 generation was decreased to 25 and 75%. Conclusions of the research indicated that the selected breed of the Kampung chicken on G3 generation increased WL band like White Leghorn chicken as much as 31,25% from the G0 generation.   Key words: Kampung chicken, prolactin promoter, MAS
Morphology growth curve of female cross breed duck between Pekin and White Mojosari Suparyanto, A; Martojo, H; Hardjosworo, P.S; Prasetyo, L.H
Jurnal Ilmu Ternak dan Veteriner Vol 9, No 2 (2004): JUNE 2004
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.823 KB) | DOI: 10.14334/jitv.v9i2.414

Abstract

Morphological growth is a very dynamic process. It is reflected the changes of body structure affected by genetic and environmental responses. Each parameter had different growth curve sigmoid pattern those expressed different characteristics. Phenotypic growth data were collected from female ducks resulted from crossbreed between Pekin male and White Mojosari. The hatchers were twicely collected, the first collection was 69 heads and then they were 89 heads. Equation of non-linier regression is determined by Gompertz model using the Marquardt method. Result showed that fast growth happened from the start to 30 days old. Estimation values of circumstance and depth brest length variables were 30 and 83 mm respectively. In the first derivation, the maximum size of back and brest were observed on 16 weeks old. In the second derivation the maximum sizes of wide hip, wide and depth brestes were reached for longer time, those were 22 to 25 weeks. Meanwhile, the correlation between parameter A (body mature) and k (rate of mature) was negative. Every variable had different oscillation slopes, the slope of two infexion points of the original curve or they were variative.     Key words: Duck, growth curve, morphology, crossbreed
Morphology growth curve of female cross breed duck between Pekin and White Mojosari Suparyanto, A; Martojo, H; Hardjosworo, P.S; Prasetyo, L.H
Jurnal Ilmu Ternak dan Veteriner Vol 9, No 2 (2004): JUNE 2004
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.823 KB) | DOI: 10.14334/jitv.v9i2.414

Abstract

Morphological growth is a very dynamic process. It is reflected the changes of body structure affected by genetic and environmental responses. Each parameter had different growth curve sigmoid pattern those expressed different characteristics. Phenotypic growth data were collected from female ducks resulted from crossbreed between Pekin male and White Mojosari. The hatchers were twicely collected, the first collection was 69 heads and then they were 89 heads. Equation of non-linier regression is determined by Gompertz model using the Marquardt method. Result showed that fast growth happened from the start to 30 days old. Estimation values of circumstance and depth brest length variables were 30 and 83 mm respectively. In the first derivation, the maximum size of back and brest were observed on 16 weeks old. In the second derivation the maximum sizes of wide hip, wide and depth brestes were reached for longer time, those were 22 to 25 weeks. Meanwhile, the correlation between parameter A (body mature) and k (rate of mature) was negative. Every variable had different oscillation slopes, the slope of two infexion points of the original curve or they were variative.     Key words: Duck, growth curve, morphology, crossbreed
Estimation of genetic distance of rabbit by morphometric analysis Brahmantiyo, B; Martojo, H; Monsjoer, S.S; Raharjo, Y.C
Jurnal Ilmu Ternak dan Veteriner Vol 11, No 3 (2006): SEPTEMBER 2006
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.293 KB) | DOI: 10.14334/jitv.v11i3.527

Abstract

The observation on morphological body conformation of English Spot (ES), Flemish Giant (FG), New Zealand White (NZWm), and Rex (Rexm) from Magelang, Central Java, and New Zealand White (NZWb), Rex (Rexb), Satin (Satin) and RS (RS) from Balitnak-Ciawi, were carried out to determine estimation of Mahalanobis genetic distance.  This research was held in Magelang (Central Java) and Balitnak-Ciawi (West Java), 237 heads of Rabbits were used. Eleven different body parts were measured, those were head (length and width), ear (length and width), chest (girth, depth, and width), humerus length, radius-ulna length, tibia length and body length. General Linear Models were used in this observation (SAS package program). Simple discriminant analyses as further analyses were done for head (length and width), chest (girth, depth, and width), humerus length, radius-ulna length, tibia length and body length. ES, FG and NZWm rabbits had morphological size bigger than others. Mahalanobis genetic distance showed that NZWm and NZWb, Rexm and Rexb were had differences with genetic distances of 5.89139 and 6.75571 respectively. Rabbits from Magelang and from Balitnak were different on morphometric with mahalanobis distance of that region ranges were 4.89426 to 6.96749. Results from canonical analysis showed that the most discriminant variables were obtained by chest girth, chest width and humerus length on first canonical and head length on second cannonical. Key Words: Rabbit, Genetic Distance, Morphometric