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Articles by R. Priyanto
Total Records ( 6 ) for R. Priyanto
  A.M. Fuah , R. Priyanto , S. Suharti , K.G. Wiryawan and M. Ismail
  The main problems behind low productivity of beef cattle raised by farmers in the villages are the less sufficiency of feed resources and low quality of feed available for the animals, especially the deficiency of protein/nitrogen and low feed intake. This study was aimed to improve the productivity of local cattle in Indonesia through the utilization of soybean meal and its wastes as the main protein source. Twelve heads of Madura cattle with an average initial live weight of 175.64±16.4 kg and ages between I1-I2 (18-30 months) were used in the study. The cattle were allotted into four feeding treatments i.e., T0 as control (100% native grass); T1 (40% roughage 60% concentrate); T2 (complete feed with 15% soybean pods) and T3 (complete feed with 30% soybean pods, for three months. The observed parameters included cattle performance (final weight, average daily gain, feed consumption and feed conversion), carcass quality (backfat thickness, loin eye area and meat color) and physical quality of meat (pH, water holding capacity, cooking loss and meat tenderness). The results showed that cattle fed soybean wastes (T1, T2 and T3) were higher in all variables of cattle performance and backfat thickness compared to those fed control feed. Utilization of feed combined with soybean waste could improve cattle performance with relatively better meat quality than those given grass only.
  A.M. Fuah and R. Priyanto
  Palm pith, which is available at all seasons, is used in a practical manner by farmers on Timor Island as an additional feed source for chicken during critically dry seasons. This study investigated the utilization of palm pith as a substitute for maize for the feeding of village chickens. Sixty-four birds, consisting of 48 females and 16 males, were divided into four groups fed different feeding treatments, each with four replicates and their growth performance, egg production, weight and size were measured. The four treatments were the following: T1 (30% maize, 20% fish meal, 50% palm pith meal); T2 (0% maize, 20% fish meal, 60% palm pith meal); T3 (10% maize, 20% fish meal, 70% palm pith meal) and T4 (20% fish meal, 80% palm pith meal). The data were analyzed through a multivariate analysis. Significant differences in live weight were observed in weeks 6, 7 and 8: the birds receiving 80% palm pith meal in their diet (T4) had higher average live weights than those receiving 60 and 70% palm pith meal. The results revealed that the effect of the interaction between time (week) and treatment on live weight was highly significant (p<0.01). The birds fed T4 had significantly higher weight than those receiving T2. Greater differences were found when the birds spent a longer time feeding. The growth performance of the birds fed T4 suggested that the protein level in the diet was likely closer to the determined level than the predicted level. The balance of amino acids may have been closer to an optimal level in the fish meal-Corypha gebanga mix (T4) than in the diets containing all three ingredients. The average egg production per month increased over the four months, with 8.8, 15.1, 36.6 and 40.6 eggs produced in months 1 to 4, respectively. The egg weight and length were 30.5 g and 775 cm, respectively. The profits from selling the village chickens contributed to quick-cash incomes for small farming families. A major constraint identified in chicken rearing is the inability of native chickens to respond to improved management practices due to their limited genetic potential. The feeding practices were inefficient in the use of existing feed resources, resulting in an inadequate amount and a low quality of the feed available for chickens and long durations between hen clutch cycles, thereby yielding a low annual egg production per hen.
  R. Priyanto , A.M. Fuah , S. Suharti , I.K.G. Wiryawan , M. Ismail and D. Firmansyah
  Background and Objective: The objective of this study was to evaluate the growth performance of Ongole Crossbreed (PO) cattle fed soybean by-products as a substitution for roughage. Methodology: Twenty PO cattle at 1.5 years of age were used in this study and were given 4 feeding treatments (T1:70% concentrate without tofu waste and 30% grass, T2:70% concentrate containing tofu waste, 15% grass and 15% soybean pods, T3:70% concentrate containing tofu waste and 30% soybean pods and T4:70% concentrate containing tofu waste and 3-0% fermented soybean pods). Each treatment was applied to 5 animals as a replication. The average crude protein content and Total Digestible Nutrients (TDN) of each feed combination were 14 and 70%, respectively. The parameters measured were as follows: (1) Average daily gain, (2) Dry matter intake, (3) Feed efficiency and (4) Rumen characteristics (i.e., rumen microbes, nitrogen retention, protozoa, allantoin and microbial protein synthesis). Results: The results indicate that cattle given 70% concentrate containing tofu waste with 30% fermented soybean pods (T4) performed well in terms of final body weight, average daily gain, dry matter intake and feed efficiency compared to the other treatments. At the end of the experiment, cattle that received T4 had a higher (p<0.05) final body weight compared to those that received the other treatments. Additionally, cattle fed 70% concentrate containing tofu waste with 30% fermented soybean pods showed a steady increase in average daily gain and showed better performance relative to those that received the other treatments. Cattle fed 70% concentrate containing tofu waste, 15% grass and 15% soybean pods and 70% concentrate containing tofu waste with 30% fermented soybean pods had higher dry matter intake compared to those that received the other treatments. The average feed efficiency of cattle fed T1 during phase 1 was higher than T2, T3 and T4, which was closely related to the average daily gain and dry matter intake. Along with the increased live weight, there was a significant change in average daily gain, which increased significantly in phase 2 and decreased in phase 3. Significant compensatory growth was observed during phase 2, cattle showed optimum growth, which was indicated by a significant increase in the average daily gain at 0.52-1.55, 0.85-1.31 and 1.09-1.41 kg day–1 in cattle fed T2, T3 and T4, respectively. During phase 3, the average daily gain of cattle of all feeding treatments decreased by 0.51 kg day–1 (T1), 0.93 kg day–1 (T2), 0.50 kg day–1 (T3) and 0.75 kg day–1 (T4). Based on the waste production analysis, the carrying capacity of soybean waste for cattle production was approximately 8 AU ha–1. Conclusion: Overall, this study suggested that the combination of 70% concentrate containing tofu waste with 30% fermented soybean pods resulted in a better performance of Ongole Crossbreed (PO) cattle, especially in final body weight, average daily gain and feed efficiency. Rumen characteristics of cattle fed all feeding treatments showed similar results, meaning that the conditions of the rumen were not significantly influenced by feeding treatment.
  A.M. Fuah , M. Baihaqi , R. Priyanto , M. Yamin , C.N.S.D. Lucia and D.M.H.K.S Panca
  Background and Objective: Problems arising from sand mining include very low soil fertility, erosion and a lack of water resources. Reclamation to improve this mined land can initially involve recontouring, regrading, resloping and revegetation. Reclamation success, especially revegetation with plants suitable for forage, can be followed by integration with livestock. The aim of this study was to identify and analyze the production capacity and potential of dairy goat farms developed on post-sand-mining land in Sumedang Regency, West Java. Materials and Methods: Surveys and group discussions were performed to obtain information about farming practices and management. Secondary data were derived from the literature, reports and relevant institutions and in-depth discussions with experts were carried out as part of a detailed analysis of existing production systems. An Analytical Hierarchy Process (AHP) analysis and external (EFAS) and internal (IFAS) factor analysis strategies were used to determine the dominant factors influencing PE dairy goat production and to formulate appropriate strategies for sustainable production in post-sand-mining areas. Results: The results indicated a high percentage (75%) of productive females with low mating ratios 1:3-1:5. From an economic point of view, the Revenue-to-Cost (R/C) ratio was 1.57. An internal-external matrix analysis showed that growth and stability strategies should be implemented and a space matrix analysis indicated that a diversification strategy should be applied. Conclusion: Finally, an integrated approach, through improving the capacity of farmer’s groups and support from local government will help to improve sustainable PE dairy goat production and provide benefits to small farmers on post-sand-mining land.
  N. Nurmeiliasari , R. Priyanto , D.A. Astuti , Salundik , J. Takahashi , M. Okamoto , T. Okamoto and A. Jayanegara
  Background and Objective: The effects of rumen mechanical stimulating (RMS) brushes on the health of Brahman crossbred steers were determined by measuring blood parameters and examining the rumen wall. Materials and Methods: This study used twenty Brahman crossbred steers divided into control and RMS groups. The steers were given low-forage diets (95.5% concentrate and 4.5% maize stover) based on 3% dry matter by body weight. The installation of RMS was conducted by a professional. Blood samples were collected at the end of the experiment from the coccygeal vein for blood profile and immunoglobulin G (IgG) measurements. The steers were slaughtered at the 93rd day of the experiment, samples of the rumen wall were collected and rumen histological observations were made. Results: The results showed that the RMS brush administration did not affect the hematocrit, hemoglobin (Hb), number of red blood cells (RBC), number of white blood cells (WBC) or IgG (p>0.05). However, there was a significant increase in neutrophils (p<0.05). The steers with RMS had a higher ratio of neutrophils to lymphocytes (p<0.05). Even though the treatment affected the neutrophil count and the ratio of neutrophils to lymphocytes, these values were in a normal range. The results of the rumen gross anatomy and histology observations showed that there was no tissue damage of the rumen, thus, it is in a normal state. Conclusion: The data indicate that the RMS brush utilization in steers does not result in adverse effects on the health of steers as measured by blood profiles, IgG concentrations and rumen histology.
  R. Priyanto , H. Nuraini , Muladno , M. Ismail and H. Wijayanto
  Background and Objectives: Local cattle and buffalo slaughtered in public abattoirs vary widely in body fatness and live weight. The study was aimed to characterise carcass and non-carcass parameters of local cattle and buffalo differing in breed, sex and body fatness score using a carcass dressing procedure based on the national standard carcass definition. Methodology: A total of 291 cattle and buffalo were slaughtered at 20 public abattoirs from ten provinces of Indonesia. The slaughtered animals were classified according to breed (Bali, Madura, PO, local crossbred cattle, PFH and buffalo), body fatness score (very thin, thin, medium, fat and very fat) and sex (male and female). Results: The results indicated that the local cattle and buffalo slaughtered at public abattoirs were dominated by local crossbred cattle (59%), followed by Bali cattle (14%), PFH cattle (10%), PO cattle (8%), Madura cattle (7%) and swamp buffalo (2%). The animals were mainly in medium (49%) and poor (36%) conditions, while only 15% of the animals were in fat condition. Variations due to breed, age, sex and body fatness score were observed in slaughter weight, carcass and non-carcass characteristics. Conclusion: Overall, the majority of local cattle and buffalo of various breeds, ages and sexes slaughtered at public abattoirs in Indonesia had low to medium carcass productivity, which could be improved by increasing their body fatness score.
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