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A. Purnomoadi
Faculty of Animal and Agricultural Sciences, Diponegoro University, Tembalang Campus, Semarang 50275
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Veterinary

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Indirect evaluation of digestive tract function on male lambs and ram based on feed digestibility and eating behavior Prima, A.; Rianto, E.; Purbowati, E.; Purnomoadi, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 43, No 2 (2018): June
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.43.2.124-130

Abstract

This studywasaimed to examine the development and function ofdigestive organsof lamb in digesting feed based on feed digestibility valueandeating behaviour. The materials used were 11 lambs aged 3-4 months, body weight(BW)14.78 ± 1.99 kg (CV 3.98%), and 11 ramsaged 10-12 months, BW 22.18 ± 1.81 kg (CV 3.29%). The study used a completelyrandomized design of 2x2 in nestedpatterns. There were two ages compared (lambs vs ram) and every age was nested the diet i.e.100%Napiergrass (G100) vs mixed pellet 50% grass and 50% concentrate(G50C50). The diet was given at 3.5% of BW. Parameters observed were dry matter intake(DMI)and digestibility, eating and ruminating time. The results showed that were no significant differences between lambs and rams in DMI (averaged 3.33% BW),digestibility (averaged 49.00%), eating (192.56 min/d), and ruminating (364 min/d). Animalsgiven diet G50C50 had higher (P<0.05) DMI (666 vs 565 g/d), digestibility (50.49%vs 47.53%), and less (P<0.05) eating (47 vs 338 min/d) and ruminating (305 vs 423 min/d), as compared withthose fed diet G100.It is concludedthat the digestive tracts of lambs had developed and function to the stage similar to ram. 
THE PERFORMANCE OF JAVA AND ONGOLE CROSSBRED BULL UNDER INTENSIVE FEEDING MANAGEMENT Lestari, C.M.S.; Adiwinarti, R.; Arifin, M.; Purnomoadi, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 36, No 2 (2011): (June)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.36.2.109-113

Abstract

This study was set up to evaluate the performance of Java and Ongole Crossbred (OC) bulls fedconcentrate and rice straw. A total of four Java bulls and four OC bulls were used in this experiment. Thebulls were fed concentrates (50% of the total dry matter feed requirement) and rice straw (ad libitum).The concentrates were consisted of rice bran, beer waste product, copra meal, minerals, with crudeprotein (CP) and total digestible nutrients (TDN) contents of 15.32% and 73.09%, respectively. Theaverage daily gain (ADG), dry matter intake (DMI), protein and energy intake, and feed conversion ratio(FCR) were observed. The results of this study showed that the ADG, DMI, CP and TDN intake, andFCR were not significantly different (p> 0.05). The ADG of Java and OC bulls were 0.58 kg and 0.78kg, respectively. The averages of DMI, CP and TDN intake were 6.59 kg (2.09% of BW), 0.81 kg and4.34 kg for Java bulls whereas for OC bulls were 6.42 kg (2.11% of BW), 0.78 kg, and 4.20 kg,respectively. The FCR of Java bulls was 11.49 and those of OC bulls was 9.21. It can be concluded thatJava and OC bulls raised intensively and fed concentrate and rice straw had the similar performance.
EATING BEHAVIOUR OF SHEEP FED AT DAY AND/OR NIGHT PERIOD Nugroho, T. A.; Dilaga, W. S.; Purnomoadi, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 40, No 3 (2015): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.40.3.176-182

Abstract

The aim of this research was to determine the eating behavior of sheep which fed at day and/or night period. Twelve ram average body weight 20.65 + 1.89 kg, CV = 9.15%, and age ranged from 12 to 18 months were used in this study. Rams were daily fed pelleted diet at 5% of body weight (BW) in 100% dry matter base. Animals were assigned to Completely Randomized Design and divided into three groups for different feeding time treatments. The treatments were day feeding time (feeding allowed from 0600 to 1800; T0618), night feeding (from 1800 to 0600; T1806) and whole-day feeding (24 h; T0606), respectively. Parameters observed in this study were duration of eating, rumination, rest, standing and laying activity (minute/day), dry matter intake (DMI, g/day) and eating speed (g/minute). Collected data were analyzed using ANOVA with F-test and if significantly was found were then analyzed with Duncan test. The results showed that eating duration (89.71 min/day) and DMI (1034.53 g/day) on T1806 were significantly lower (P<0.05) than T0618 (117.78 min/day; 1208.75 g/day) and T0606 (127.5 min/day; 1281.63 g/day) but, the other observation of ruminating, rest, standing and laying duration and eating speed were found not significantly different in the all treatments. It can be concluded that feeding at night period can reduce eating time significantly compared to feeding during the day period or 24 hours a day, although it results in decreasing feed consumption.
THE PRODUCTION AND BODY COMPOSITION OF KACANG GOAT FED DIFFERENT QUALITY OF DIETS Restitrisnani, V.; Purnomoadi, A.; Rianto, E.
Journal of the Indonesian Tropical Animal Agriculture Vol 38, No 3 (2013): (September)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.38.3.163-170

Abstract

An experimental study was carried out to assess the effect of diet quality on productivity and bodycomposition of Kacang goat. Fifteen male Kacang goats weighing 14.28 ± 3.36 kg (CV = 23.55%) weredivided into 5 groups based on body weight. The experimental design used in this study wasRandomized Block Design (RBD) with 3 treatments of dietary protein and total digestible (TDN)contents (T1= diet with 9.20% protein and 54.67% TDN; T2= diet with 11.6% protein and 58.61%TDN; T3= diet with 18.33% protein and 65.23% TDN). Parameters observed were feed intake, drymatter intake, crude protein intake, TDN intake, live weight gain (LWG) and body composition ofKacang goat. The results showed that feed quality did not significantly affect (P>0.05) dry matter intakeand body composition, but significantly affect (P<0.05) protein intake, TDN intake and LWG. It can beconcluded that the higher quality diet resulted in higher productivity, but the higher quality diet was notaffect body composition of Kacang goat, except body fat gain (%).
RUMINAL FERMENTATION AND BLOOD GLUCOSE AT LOW AND HIGH LEVEL INTAKE OF GROWING AND MATURE KACANG GOAT Luthfi, N.; Lestari, C. M. S.; Purnomoadi, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 39, No 3 (2014): September
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.39.3.152-158

Abstract

This study was conducted to compare ruminal Volatile Fatty Acids (VFA) concentration andblood glucose in young and mature Kacang goats at different feeding levels. Eigth male young Kacanggoats weights at 12.75±2.68 kg (6-7 months) and male mature goat weights at ± 17.34±3.32 kg (8-12months) were used in this study. The pelleted complete feed was formulated to give 18,8% of CrudeProtein (CP) and 78.82% of total digestible nutrients (TDN). The experiment design was nested designexperimental 2x2 with 4 replications. The main factors (based on nested) were young and mature goatsand the second factor was low feeding (near maintenance level) and high feeding (2X maintenance).Data measured were daily feed intake, feed digestibilities, ruminal VFA concentration and bloodglucose. The data obtained were analyzed by using analysis of variance. The results showed that drymatter intake (DMI), digestible carbohydrates, digestible crude fiber, and digestible organic matter wasaffected by age (P<0.05), as well as level of feeding (P<0.001), but age and feeding level has no effecton digestibility (P>0.05). Ruminal VFA and blood glucose concentrations were found similar (P>0.05) neither in young and mature goats. However, VFA and concentration on the 3 and 6 h on high feeding aswell as blood glucose on 3 h in high feeding were higher than those on low feeding.
Early fattening and improving feeding quality of Kejobong goats could reduce methane production and improve meat production Restitrisnani, V.; Pangestu, E.; Rianto, E.; Kurihara, M.; Nabila, F.; Adiwinarti, R.; Purnomoadi, A.
Journal of the Indonesian Tropical Animal Agriculture Vol 47, No 1 (2022): March
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jitaa.47.1.55-64

Abstract

An experimental study was carried out to evaluate the implication of early fattening of Kejobong goats by improving feeding quality on methane production and meat production. Sixteen goats (8 young and 8 mature) were raised for 4 months study period. Nested design was used in this study, with young and mature as a nest factor, and diet (G7C3: 70% grass and 30% concentrate and G3C7: 30% grass and 70% concentrate) as the treatments. The main parameters observed were DMI, BWG, carcass (CWG) and meat weight gain (MWG), and methane emission. The results showed, the young goat fed G3C7 was higher than that fed G7C3 in DMI. The BWG’s of goats fed G3C7 were higher than those fed G7C3, but there was no difference between ages in BWG. The FCR of young goat fed G3C7 was lower than that fed G7C3. The DMI of mature goat was higher than young goat, but there were no differences between the ages in DM digestibility, carcass weight and meat weight gain. The young and mature goats fed G3C7 was significantly lower than that of G7C3 in methane emissions per unit of BWG (0.28 vs 0.40 and 0.36 vs 0.53, respectively), in methane emissions per unit CWG (0.60 vs 0.93 and 0.79 vs 1.47, respectively), and methane emission per unit MWG (0.89 vs 1.42 and 1.16 vs 2.19, respectively). It can be concluded that fattening young Kejobong goats by improving feed quality is more environmentally friendly than fattening the mature ones.
Optimizing Methane Production from Anaerobic Digestion of Dairy Cow Manure: The Potential Use of Carica (Carica pubescens) Seeds as a Co-Substrate Purwasih, R.; Saindah, M.; Triyuwanti, H.; Yusuf, F. S.; Purnomoadi, A.; Purbowati, E.; Sutaryo, S.
Tropical Animal Science Journal Vol. 48 No. 1 (2025): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2025.48.1.37

Abstract

A method to increase methane production in dairy cow manure (DCM) is to co-digest DCM with nutritious biomass. This study aimed to determine the methane yield during the anaerobic co-digestion of DCM and carica seeds meal (CSM). Four continuous stirred tank reactors were operated with treatments P0 (100% DCM), P1 (98% DCM and 2% CSM), P2 (96% DCM and 4% CSM), and P3 (94% DCM and 6% CSM). The results demonstrated that the presence of CSM as a co-substrate of DCM significantly increased (p<0.05) methane production. The average methane production resulting from P0, P1, P2, and P3 in units of mL/g substrate and mL/g volatile solid (VS)added were 10.05, 20.54, 32.26, and 19.29 mL/g substrate and 171.49, 278.96, 357.92 and 179.30 mL/g VSadded, respectively. Thus, the highest methane production was obtained at P2. Treatment P3 contained a substrate containing excessively high protein and organic content, negatively affecting anaerobic microorganisms’ activity. The presence of CSM as a co-substrate enhanced methane production by 91.94%–221.06% compared with the control. The presence of CSM as a co-substrate significantly increased (p<0.05) volatile fatty acid and total ammonia nitrogen (TAN) concentrations and the pH of digested slurries but did not affect VS reduction. The co-digestion of DCM and CSM must consider the proportion of organic material in the mixed substrate. In this study, the mixed substrate with a VS proportion of 51.68% was the best-mixed substrate.
Productivity, Carcass Traits, and Meat Quality of Local Lambs Fed with Carica pubescens Seeds Meal Idayanti, R. W.; Istianah, I.; Putri, S. N. H.; Fauziah, A. N.; Murniyadi, Z.; Esnadewi, L. G.; Purbowati, E.; Arifin, M.; Purnomoadi, A.
Tropical Animal Science Journal Vol. 47 No. 1 (2024): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2024.47.1.87

Abstract

This study aimed to determine the effect of substituting agricultural by-products of Carica pubescens seeds meal with some concentrates on productivity, carcass characteristics, and meat quality of local lambs. Eighteen male thin-tailed lambs with an average initial body weight of 10.68 ± 1.3 kg (3-4 months old) were treated with a completely randomized design for ten weeks. The feed ingredients were C. pubescens, Pakchong grass (PG), and concentrate (K). Feed ingredients were prepared into complete feed with a balance of forage and concentrate 40:60% with three treatments, namely: T1= 40% PG + 55% K + 5% C. pubescens; T2= 40% PG + 47.5% K + 12.5% C. pubescens; and T3= 40% RG + 40% K + 20% C. pubescens. The use of 20% C. pubescens-treated lambs was statistically different (p<0.05) regarding the increasing BWG (115.60 g/day), CPI (104.96 g/day), FCR (6.40), slaughter weight (19.62 kg), carcass weight (7.83 kg), meat weight (4.49 kg), and fat weight (1.66 kg). The treatment with 12.5% C. pubescens resulted in significantly different increasing tenderness (p<0.05) in longissimus dorsi and biceps femoris muscle pain (2.79 kgf/cm2) and (3.36 kgf/cm2), respectively. The inclusion level of C. pubescens seeds up 20% resulted in higher body weight gain, crude protein intake, feed cost ratio, slaughter weight, carcass weight, and meat weight.
Co-Authors A. Muktiani A. Prakoso A. Prima A.M. Legowo B. Kurnadi, B. B. Rahmi, B. C. M. S. Lestari C.M.S. Lestari D. Nugroho, D. E. Pangestu E. Purbowati E. Rianto E. Riyanto, E. Esnadewi, L. G. F. Iskandar Fauziah, A. N. G. Puspitasari, G. Idayanti, R. W. Istianah, I. Kurihara, M. L.D. Ambara M. Arifin M. Umar M.N. Aprilliza Murniyadi, Z. N. Luthfi, N. Nabila, F. Nurwantoro . Putri, S. N. H. Retno Adiwinarti Rita Purwasih S. Dartosukarno S. Mulyani S. Surahmanto S. Sutaryo S.A.B. Santoso, S.A.B. Saindah, M. Sunarso . Surahmanto T. A. Nugroho, T. A. T. Miyagi, T. Triyuwanti, H. V. Restitrisnani V.P. Bintoro W. S. Dilaga Y. Kawamoto Y. Yanti Yusuf, F. S.