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R Dharsana
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The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate Sinurat, A.P; Dharsana, R; Pasaribu, T; Panggabean, T; Habiebie, A
Indonesian Journal of Animal and Veterinary Sciences Vol 2, No 2 (1996)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (801.12 KB) | DOI: 10.14334/jitv.v2i2.54

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of  phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers.   Keywords: Rock phosphate, NDCP, layers, phosphorous
Oestrous synchronization using composite solution of testosterone, oestradiol and progesterone on Peranakan Etawah goat Sutama, I-Ketut; Dharsana, R; Budiarsana, I-G.M; Kostaman, T
Indonesian Journal of Animal and Veterinary Sciences Vol 7, No 2 (2002)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.719 KB) | DOI: 10.14334/jitv.v7i2.282

Abstract

Progestagen is generally used for hormonal treatment in the synchronization program, but the cost of this stuffs is relatively expensive. An alternatif low cost agent for sinchronization is needed and this is a focus of the present study. Forty eight heads of mature does and 4 bucks of Peranakan Etawah (PE) goats was used in two phases of study. In the first phase, three types of composite compounds (TOP-A, TOP-B and TOP-C) were tested on a number of PE does. In the second phase of the study, the best TOP composite of the first phase was compared with Fluogestone Acetate (FGA) which is a commercially made of progestagen for synchronization. FGA was inserted intravaginal for 7 days (FGA-7) and 14 days (FGA-14). Results of the study in phase I showed that only 40-60% of does showed oestrus following TOP composite treatment, and 50-67% of them in groups TOP-A and TOP-B did not ovulate, while all oestrous does in TOP-C group ovulated. Oestrous cycle length was within a normal range of oestrous cycle (15 - 22 days) indicating that TOP composite did not have negative effect on reproductive activity of goats. The best TOP-C in the study phase I was tested in the study phase II and compared with FGA. The results showed that the number of does in oestrus in TOP-C group was only 63.6% which was much lower than those of FGA-7 (81.8%) and FGA-14 (100% ). Imperiority of TOP-C and FGA-7 were shown by a relatively high incident of oestrus without ovulation which were 14.3% and 11.1% for the respective groups. Consequently, ovulation rates in both groups were lower than those of FGA-14 (1.1 vs 1.4 vs 1.8, P<0.05). Pregnancy rate in TOP-C was also the lowest (27.3%) compared with those of group FGA-7 (63.6%) and group FGA-14 (81.8%). Based on the results obtained, it could be concluded that TOP composite used in this study was not as good as FGA in inducing oestrus in goat.   Key words: Oestrous synchronization, progestagen, Peranakan Etawah goat
The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate Sinurat, A.P; Dharsana, R; Pasaribu, T; Panggabean, T; Habiebie, A
Indonesian Journal of Animal and Veterinary Sciences Vol 2, No 2 (1996)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.569 KB) | DOI: 10.14334/jitv.v2i2.53

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers. Keywords: Rock phosphate, NDCP, layers, phosphorous (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers. Keywords: Rock phosphate, NDCP, layers, phosphorous
The utilization of rock phosphate (natural defluorinated calcium phosphate or NDCP) in laying hens diet to replace dicalcium phosphate A.P Sinurat; R Dharsana; T Pasaribu; T Panggabean; A Habiebie
Jurnal Ilmu Ternak dan Veteriner Vol 2, No 2 (1996)
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (801.12 KB) | DOI: 10.14334/jitv.v2i2.54

Abstract

An experimentwas conducted to study the utilization of local rock phosphate or natural defluorinated calcium phosphate (NDCP) as phosphorus source for layer chickens by using the imported dicalcium phosphate (DCP) as a reference. Eight experimental diets consisted of 2 source of phosphorus (DCP and NDCP) and 4 dietary total P levels (0.4, 0.5, 0.6 and 0.7%) were formulated. Each diet was fed to 24 pullets (6 replicates with 4 birds each) from 20 weeks of age to 14 weeks of egg production. Observations were made on feed consumption, egg production, egg weight, mortality, egg quality, Ca and P retention and ash content of tibial bones . Results showed no significant effect of different source and level of  phosphorus tested on egg production (% HD), feed consumption, egg weight and mortality rates . Egg shell thickness was depressed in NDCP diet as compared with DCP, however this only occurred at firstmonth of production. It is concluded that the NDCP can be used in layers diet to replace DCP as phosphorus source. The relative biological value of phosphorus inNDCP is 96% for layers.   Keywords: Rock phosphate, NDCP, layers, phosphorous
Oestrous synchronization using composite solution of testosterone, oestradiol and progesterone on Peranakan Etawah goat I-Ketut Sutama; R Dharsana; I-G.M Budiarsana; T Kostaman
Jurnal Ilmu Ternak dan Veteriner Vol 7, No 2 (2002): JUNE 2002
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.719 KB) | DOI: 10.14334/jitv.v7i2.282

Abstract

Progestagen is generally used for hormonal treatment in the synchronization program, but the cost of this stuffs is relatively expensive. An alternatif low cost agent for sinchronization is needed and this is a focus of the present study. Forty eight heads of mature does and 4 bucks of Peranakan Etawah (PE) goats was used in two phases of study. In the first phase, three types of composite compounds (TOP-A, TOP-B and TOP-C) were tested on a number of PE does. In the second phase of the study, the best TOP composite of the first phase was compared with Fluogestone Acetate (FGA) which is a commercially made of progestagen for synchronization. FGA was inserted intravaginal for 7 days (FGA-7) and 14 days (FGA-14). Results of the study in phase I showed that only 40-60% of does showed oestrus following TOP composite treatment, and 50-67% of them in groups TOP-A and TOP-B did not ovulate, while all oestrous does in TOP-C group ovulated. Oestrous cycle length was within a normal range of oestrous cycle (15 - 22 days) indicating that TOP composite did not have negative effect on reproductive activity of goats. The best TOP-C in the study phase I was tested in the study phase II and compared with FGA. The results showed that the number of does in oestrus in TOP-C group was only 63.6% which was much lower than those of FGA-7 (81.8%) and FGA-14 (100% ). Imperiority of TOP-C and FGA-7 were shown by a relatively high incident of oestrus without ovulation which were 14.3% and 11.1% for the respective groups. Consequently, ovulation rates in both groups were lower than those of FGA-14 (1.1 vs 1.4 vs 1.8, P<0.05). Pregnancy rate in TOP-C was also the lowest (27.3%) compared with those of group FGA-7 (63.6%) and group FGA-14 (81.8%). Based on the results obtained, it could be concluded that TOP composite used in this study was not as good as FGA in inducing oestrus in goat.   Key words: Oestrous synchronization, progestagen, Peranakan Etawah goat
Co-Authors A Habiebie A.P Sinurat I-G.M Budiarsana I-Ketut Sutama T Kostaman T Panggabean T Pasaribu