Indonesian Journal of Animal and Veterinary Sciences

207 - 213

Authors: Saulan Sinaga, Marsudi Silalahi

An experiment had been conducted to find out the effect of layer manure in the ration pig. Twenty four pig were randomized into 24 individual pens. Completely Randomized Design was used in this experiment; treatments consist of four levels of layer manure (0; 5; 10 and 15%), each treatment was replicated six times. The result indicated that up to 5% layer manure add to the starter-grower diet can be fed without any significant effect. Key words: Layer manure, starter-grower period

220 - 226

Authors: Amlius thalib

Effect of microbial growth factors (FPM) combined with and without microbe preparate (SM) on growth of Etawah-crossgoat has been conducted for 14 weeks, including 2 weeks of adaptation period. Animals used were 24 male goats of Etawahcross (PE) with a mean liveweight of 17.73 ± 1.80 kg. The animals were randomly distributed into 3 treatment groups. Eachgroup consisted of 8 animals. All animals were fed elephant grass (ad lib.) + concentrate containing 16% crude protein (1.0% oflive weight) as basal diet. The treatment groups were : I. Control (K); II. K + FPM; III. K + SM + FPM. Measurements recordedwere: feed consumption, average daily gain (ADG), dry matter digestibility (in vitro and in vivo DMDs), as well as rumenecosystem. All animals were placed in metabolism cages for 2 weeks for determination of in vivo DMD. The results showed thatFPM combined with and without SM improved the performance of both rumen ecosystem and host animals. Compared tocontrol, combination of FPM with SM increased the following parameters significantly (P<0.05): ADG (55 vs. 36 g); DMI (645vs. 609 g head-1 day-1); in vivo DMD (74 vs. 69%); FCR (12 vs. 17); in vitro DMD (49 vs. 46%); colony number of bacteria percell number of protozoa (3.09 x 104 vs. 1.12 x 104); VFA content (3.53 vs. 2.82 mg ml-1); NH3-N content (68 vs. 56 mg l-1); pH(6.78 vs. 6.65). Microbe preparate enhanced the effect of FPM on VFA content so that the combination of FPM and SM(treatment III) significantly increased the VFA content as compared to the control (P<0.05). Key words: Microbial growth factor, microbe preparate, etawah-cross goat

237 - 243

Authors: A.R Setioko, P Situmorang, E Triwulanningsih, T Sugiarti, D.A Kusumaningrum

The study was conducted to evaluate the effect of cryoprotectant and equilibration period on quality and fertility of duck and muscovy spermatozoa. Semen collected from Alabio and muscovy drakes was diluted using three different cryoprotectants:glycerol, DMSO and DMF, thereafter the semen was equilibrated 50C for 15; 30 and 60 minutes then frozen and stored in liquid nitrogen, designed by factorial 3 x 3. After thawing, semen sample was investigated on the motility and mortality rate. The best cryoprotectant and equilibration period was used in fertilization test. Duration of fertility was calculated from the second day after insemination until the last fertile egg, and the percent of fertility was calculated from the second day until the forth day after insemination. The use of cryoprotectant significantly affected sperm motility after freezing. The use of glycerol as a cryoprotectant was the lowest (P<0.05) compared to DMSO and DMF. Similarly, duck sperm motility after being freezed with glycerol, DMF and DMSO were 9.02; 21.75, and 32.86%, and for muscovy sperm motility were 11.78; 32.45 and 34.92% respectively. The percentage of live sperm for duck were 23.84; 40.14 and 42.20, while for muscovy were 29.26; 53.06 and 51.80 respectively after being freezed with glycerol, DMF and DMSO. Equilibration period did not affect the percentage of live sperm after freezing. Results of this study showed that duration of fertility of Alabio duck after being inseminated with fresh drake semen was longest compared to that of insemination using fresh muscovy semen, frozen drake semen and frozen muscovy semen (4.96 vs 3.5; 2.4 and 1.5 days respectively). Results from this study clearly indicated that preservation of sperm reduced the quality of spermatozoa. It is suggested that freezing technique of both duck and Muscovy sperm could be conducted using DMF or DMSO as a cryoprotectant with the equilibration period between 15 to 60 minutes. Key words: Sperm, cryoprotectant, fertility, AI, duck, muscovy

251 - 258

Authors: Polmer Situmorang

This study was conducted to evaluate the effect of cholesterol on the viability and fertility of chilled and deep-frozen bull spermatozoa. Semen was collected by means of artificial vagina, diluted in Tris-Citrat diluent and cooled to 50C for 60 minutes. Following an equiliberation for 4 hours, semen was frozen at 5 cm above surface of liquid nitrogen for 10 minutes. The experiment was 2 x 3 factorial designed with two level of egg yolk (10 and 20% v/v) and 3 level of cholesterol (0; 0.5 and 1.0 mg/ml). The viability of spermatozoa was evaluated after the temperature reduced to 50C, stored at 50C for 1, 3 and 7 days and after thawing. For fertility test, cows were artificially inseminated (AI) using chilled and frozen semen on the onset or 6 hours of oestrus. Rectal palpation was conducted 3 months after AI to determine the pregnancy. The percentages motile of chilled semen was higher in 0.5 mg/ml than those of 0.0 or 1.0 mg/ml cholesterol but this difference was not significant. After thawing, the effects of cholesterol on the percentage motile was significant (P<0.05). The mean percentage motile was 47.5; 51,5 and 56.0 for 0.0; 0.5 and 1.0 mg/ml cholesterol respectively. The percentage of live sperm and intact apical ridge was higher in cholesterol however this effects was not significant. The effects level of egg yolk and its interaction with cholesterol on the viability was not significant. The percentage of pregnant was higher in 1.0 mg/ml and the mean percentage of pregnant was 45.8; 48.2 and 55.7 for 0.0; 0.5 and 1.0 mg/ml cholesterol respectively. Percentage of pregnant was higher for chilled semen than those of frozen semen (54.3 vs 45.5). In conclusion the addition of 1 mg/ml cholesterol increase the percentage of motile after thawing and pregnancy of cows inseminated with chilled and frozen semen. Key words: Semen, viability, cholesterol, pregnan

265 - 271

Authors: Simson Tarigan

The purpose of this study was to compare macroscopic dermatopathology in naïve and sensitised goats, and to assess protective immunity possessed by sensitised goats against Sarcoptes scabiei challenge. Eighteen goats were allocated evenly into 3 groups; group 1 sensitised with the mite twice, group 2 once and group 3 was not sensitised (naïve). Sensitisation was done by infesting goats with the mites on the auricle and infestation was allowed to progress for 7 weeks, then the goats were treated with Ivermectin to obtain complete recovery. After sensitisation, all sensitised and naïve goats were infested with the mites on the auricles. Infestation in the sensitised goat caused severe immediate hypersensitivity that resulted in severe peracute pustular dermatitis. After one week, however, the lesion waned slowly. At 7 weeks post infestation, the remnant of lesion could only be perceived by palpation on the primary site of infestation as a mild papular dermatitis. Infestation on the naïve goats, in contrast, produced slowly progressing lesions which at 7-week post infestation, it ended up with severe crusted scabies affecting almost the whole skin. Antigens responsible for the immediate hypersensitivity which are supposedly contained in the mite secretions or excretions are immunologically protective but unlikely to have the capacity to induce a complete protection against mite challenge in immunised animals. This notion is based on the fact obtained from this study that goats sensitised twice did not possess a higher immune protection against mite challenge than goats sensitised once. Key words: Sarcoptes scabiei var. caprae, sensitisation, protective immunity, immediate hypersensitive