Indonesian Journal of Animal and Veterinary Sciences

7 - 12

Authors: I.A.K Bintang, A.P Sinurat, T Purwadaria

A study on the use of Zinc bacitracin antibiotic (ZnB) and dried Morinda citrifolia waste as feed additive in broiler ration was conducted. Two hundred and sixteen day old chicks (DOC) was allocated into 4 treatments: control; control + 50 ppm ZnB, and control + M. citrifolia waste at 2 levels (5 and 10 g/kg ration) with 9 replications. Each replicatation consist of 6 birds. The treatments were allocated in a completely randomized design. Variables measured were feed intake, live weight, feed conversion ratio (FCR), percentages of carcass and internal organs (liver, gizard, abdominal fat, and thickness of intestine). The results showed that feed intake of M. citrifolia waste was significantly (P<0.05) lower than that of control. Live weight and live weight gain of M. citrifolia waste treatments did not significantly different (P>0.05) from that of control. The use of M. citrifolia waste (5 and 10 g/kg) gave significantly lower (P<0.05) live weight than the use of antibiotic. FCR of M. citrifolia waste 5 g/kg ration and antibiotic was not significantly different (P>0.05), but was significantly lower (P<0.05 ) than that of control and M. citrifolia waste 10 g/kg. Carcass and internal organ percentages were not effected by antibiotic and M. citrifolia waste. Liver percentages with M. citrifolia waste 10 g/kg was significantly (P<0.05) higher and abdominal fat was lower (P>0,05) than that of control, control + antibiotic ZnB and M. citrifolia waste 5g/kg. It is concluded that the supplementation of M. citrifolia waste (5 g/kg) could substitute ZnB to improve feed eficiency in broiler ration. Key Words: M. Citrifolia Waste, Performances, Broiler

23 - 29

Authors: Muhammad Rizal, Herdis ., Maman Surachman, W. Marlene Mesang-Nalley

In processing of buck semen, seminal plasma is a problem because it contains a phospholipase A enzime produced by the Cowper gland. If this enzime interacts with egg yolk, it causes semen coagulation, and consequently death of spermatozoa. The purpose of this research was to examine the effect of Priangan ram seminal plasma on viability of Peranakan Etawah (PE) buck spermatozoa preserved at 3–5oC. Semen was collected using artificial vagina once a week. Fresh semen was divided into three tubes then centrifuged at 3,000 RPM for 30 min. Supernatant of the first tube was mixed again with Pasteur pipette (treatment A or control). Supernatant of the second tube was removed (treatment B or without seminal plasma). Supernatant of the third tube was removed and changed with Priangan ram seminal plasma in the same volume (treatment C). Semen was diluted with Tris extender containing 20% egg yolk and stored in refrigerator at 3–5oC. Quality of diluted-semen including percentages of motile spermatozoa (MS), live spermatozoa (LS), and intact plasma membrane (IPM) was evaluated every day during storage at 3–5oC for three days. Results of this study showed that mean volume, colour, consistency, pH, mass activity, spermatozoa concentration, MS, LS, spermatozoa abnormal, and IPM of PE buck fresh semen, respectively was 0.68 ml, cream, thick, 7, ++/+++, 4,148.57 million cell/ml, 70%, 83.89%, 7.12% and 84%. At day-4 of storage, percentages of MS, LS, and IPM for treatment C (40, 52.2 and 51.6%) was significantly (P<0.05) higher than that of: treatment B (31, 44.8 and 45.2%) and treatment A (11, 15.6 and 14.8%). In conclusion, seminal plasma of Priangan ram could maintain the quality of PE buck semen preserved at 3–5oC for three days, and it prevent semen from coagulation. Key Words: Seminal Plasma, Priangan Ram, Spermatozoa Viability, PE Buck

35 - 42

Authors: Yudi ., I Arifiantini, B Purwantara, T.L Yusuf

The objective of the experiment was to study the motility and viability of spermatozoa of fresh semen, and the quality of extended semen with different sperm concentration in Dimitropoulos-modified extender. Semen was collected using artificial vagina from three 4-8 year old stallions (different breed). Semen characteristics and quality was evaluated macro- and microscopically. For longevity evaluation, semen was stored at room and chilled temperature, and was evaluated for motility and viability every 3 h. Prior extension, semen was centrifugated at 3000 rpm for 20 minutes. The condensed sperm was re-suspended in Dimitropoulos (DV) supplemented with 50 mM fructose with the concentration of 200, 100 and 50 x 106 spz/mL. All samples were stored at room and chilled temperature, and was evaluated for motility and viability every 3 h and 12 h for room and chilled temperature. Results of the experiments indicated that fresh semen characteristics was fairly good. For longevity evaluation, semen with motility of 48.33 and 10.42% was observed at 3 h and 12 h after the onset of storage. The extended-semen with 50 x 106 spz/mL showed significantly higher in term of motility and viability (P<.05) than that with 200 x 106 spz/mL, but for that of 100 x 106 spz/mL. It is recommended that sperm concentration should be 50 x 106 spz/ml for a long period storage with reasonable good quality. Key words: Stallion, Semen, Sperm Concentration, Dimitropoulos

52 - 60

Authors: Adin Priadi, Lily Natalia

Clostridium perfringens (C. perfringens) is a normal inhabitant of the intestinal tract of chickens as well as a potential pathogen causing necrotic enteritis. C. perfringens only causes necrotic enteritis when it transforms from non-toxin producing type to toxin producing type. The alpha toxin, (phospholipase C) is believed to be a key to the occurrence of Clostridial necrotic enteritis (CNE). The best known predisposing factor is mucosal damage, caused by coccidiosis that damages the intestinal lining, making the gut susceptible to infections including C. perfringens. The purpose of this study was to observe the chicken performance in experimental CNE and field cases of CNE. Diagnosis of CNE were made by latex agglutination test, isolation and identification of the agent. Pathological and histopathological changes were also observed. Experimentally, NE could be reproduced when Eimeria sp and C. perfringens spores are inoculated in chicken. Signs of an NE are wet litter and diarrhea, and an increase in mortality is not often obvious. The depression of growth rate and feed efficiency of chicken become noticeable by week 5 because of damage to the intestine and the subsequent reduction in digestion and absorption of food. Subclinical form of CNE was also frequently found in the field, leading to significant decreases in performance. Chicken gut samples examinations revealed that subclinical form of CNE causes damage to the intestinal mucosa caused by C. perfringens leads to decreased digestion and absorption, increased feed conversion ratio and reduced weight gain. Dual infection with C. perfringens and Eimeria sp. was frequently found in field. The results of these studies provide evidence for C. perfringens as a causative bacteria for growth depression. Key Words: Clostridial Necrotic Enteritis, Chicken, Growth Depression

67 - 74

Authors: Soeripto

Up to presence chronic respiratory disease (CRD) of chickens is still causing economic losses against poultry industries in the world. The purpose of this trial is to determine the efficacy and safety of a compatible dose of Tiamulin hydrogen fumarat 10% in combination with monensin for the control of CRD in broilers. A number of 630 day-old broilers were divided into 3 groups and each group was divided again into 7 subgroups of 30 equally sexed birds. Each subgroup was placed randomly in 2 chicken houses. Up to 3 weeks of age, chickens in Group I were fed with starter feed (SP1) containing 100 ppm monensin only without other treatment and used as control. Chickens in Group II were fed with SP1 feed containing 30 ppm Tiamulin hydrogen fumarat (3 – 6 mg/ kg BW) and 110 ppm amoxicillin, this feed is called SP1+, whereas chickens in Group III were administered with SP1 feed and treated with enrofloxacin liquid formulation 10% with a dose 0.5ml/L in drinking water for the first 5 days of life. Started from 22nd day until the end of the experiment at 32 days of age, all chickens in Groups I, II and III were fed with SP2 finisher feed containing neither monensin nor Tiamulin hydrogen fumarat. The results of the experiment showed that no statistical difference in bodyweight and feed conversions among the groups at 32 days of age but feed conversion in Group II was statistically different compared to those in Groups I and III at week 2. No clinical signs of toxic interaction of monensin combined with Tiamulin were observed. Lesions of airsacculitis and ascites occurred only in dead chickens of Groups I and III but not in chickens of Group II. The incidence of pneumonia in Group I occurred in all dead birds which is statistically different to Group II that had one lesion of pneumonia. Mycoplasma gallisepticum and Escherichia coli organisms were able to be isolated from the chickens that had pneumonia and ascites in Groups I and III only. The results of the experiment showed that combination of 30ppm Tiamulin hydrogen fumarat + 110 ppm amoxicillin is effective for preventing CRD in broilers and save if it is combined with 100 ppm monensin. Key Words: Tiamulin Hydrogen Fumarat, Chronic Respiratory Disease, Broilers