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INDONESIA
MEDIA PETERNAKAN - Journal of Animal Science and Technology
Published by Institut Pertanian Bogor
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol. 29 No. 2 (2006): Media Peternakan" : 9 Documents clear
Kajian Aspek Protein Turnover Tubuh pada Ayam Kedu Periode Pertumbuhan N Suthama
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Growth rate can be clarified based on body protein turnover in Kedu chicken given improved diet. Protein turnover is estimated according to the difference of protein synthesis and breakdown rates using the excretion of -methylhistidine (Nτ–MH) as an indicator. One hundred forty four (144) birds of non-black Kedu chicken of 2 weeks old purchased from the farmer group at Kedu village were used as the experimental animals. The birds were then reared until 16 weeks old (4 months). Experiment was started at 4 weeks old by dividing the birds into 3 groups according to the tested diets. Diet 1 (R1): farmer's diet formula consisting of yellow corn (40%), rice bran (40%) and concentrate (20%). Diet 2 (R2): simple modification of R1, added with CaCO3 and premix. Diet 3 (R3): new formula by improving nutritional content. The present experiment was arranged in a completely randomized design with 3 treatments and 6 replications (8 birds each). Data of feed consumption, body weight gain, feed conversion ratio, (Nτ–MH) excretion, rates of protein synthesis (Ks) and of protein degradation (Kd) were statistically analyzed by analysis of variance and continued to Duncan test when the treatment effect was significant (P < 0.05). (Nτ–MH) and nitrogen were measured from the totally collected excreta at the last week of the experiment. Body weight gain, muscle protein mass, nitrogen retention and Ks in R3 increased significantly (P < 0.05) as compared to those in R1. However, feed conversion ratio and (Nτ–MH) excretion in R3 decreased and significantly lower than those in R1. Feed consumption and Kd indicated the same values in all treatments. Improvement of dietary quality and nutritional content brought about the increase in growth rate and muscle protein mass, even though at a slow rate. This phenomenon was supported by the acceleration rate of Ks at a slow rate as well, with unchangeable rate of Kd. Feed utilization was not efficient since the value of feed conversion ratio was categorized high, ranging from 2.9 to 3.3. Key words: diet, growth , protein turnover, Kedu chicken
Fermentabilitas dan Kecernaan in Vitro Ransum Limbah Agroindustri yang Disuplementasi Kromium Anorganik dan Organik A Jayanegara; A S Tjakradidjaja; T Sutardi
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Chromium is a trace element which has been considered essential for humans and animals since 1959. However, the effect of chromium on activity of rumen microorganisms has not been yet investigated. This experiment was conducted to determine the effect of chromium supplementation to agroindustrial waste based diets on rumen microorganisms which was measured in vitro. Chromium supplement was in the form of anorganic and organic incoroporated to Rhizopus sp. fungus. Two experimental designs were used in this experiment. A completely randomized design with 10 treatments and 3 replications was used to measure dry matter and organic matter digestibilities (DMD and OMD). A factorial randomized block design 10 x 3 was used to measure total VFA and NH3 productions. Factor A was diet treatments and Factor B was fermentation period. Rumen fluid was used as block (replication). Treatments consisted of K1 (control diet), K2 (K1 + non mineral Rhizopus sp. fungus), A (K2 + anorganic Cr) with 4 levels of anorganic Cr (1, 2, 3, and 4 ppm), and O (K1 + organic Cr) with 4 levels of organic Cr (1, 2, 3, and 4 ppm). Incubation period was carried out for 1, 3, and 5 hours. The addition of non mineral Rhizopus sp. fungus (K2) decreased total VFA production from 110 to 59 mM (P < 0.05) and increased NH3production from 9.97 to 13.28 mM (P < 0.05). Supplementation of anorganic Cr decreased DMD and OMD compared to K2 (P < 0.05), but organic Cr supplementation increased DMD and OMD. Optimum level of organic Cr supplementation was 1 ppm and 4 ppm for anorganic Cr. This means that supplementation of organic Cr is four times more efficient than that of anorganic Cr. Key words : chromium, anorganic, organic, digestibility, fermentation
Pertumbuhan dan Distribusi Potongan Komersial Karkas Sapi Australian Commercial Cross dan Brahman Cross Hasil Penggemukan Harapin Hafid H; R Priyanto
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

This research was conducted to study the growth and distribution of carcass components of beef carcas from Australian Commercial Cross and Brahman Cross cattle. The number of animals used was 165 heads with the body weight range of 350 - 400 kg taken from feedlot fattening. To study the growth and development of carcass component, the equation alometric Huxley was used. The result showed that breed had not significant effect on wholesale cuts. The geometry estimation on the specification of traditional markets and special market showed also the differences on topside (traditional market) and flank (special market). Key words : distribution, wholesale cuts, Australian Commercial cross, Brahman cross, fattening
Pengaruh Penggilingan dan Pembakaran terhadap Kandungan Mineral dan Sifat Fisik Kulit Pensi (Corbiculla Sp) untuk Pakan . Khalil
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

An experiment was conducted to determine the percentage of rate, nutrient contents and physical properties of grinding and roasting products of freshwater mussel shell. Fresh mussel samples were collected from four different lakes in West Sumatra: Maninjau, Singkarak, Danau Diatas and Danau Dibawah. The samples of about 3 kg each were processed to separate the shell and their body content. The shells were then dried and processed to produce three different products: raw coarse ground, raw fine ground and roasted fine ground. Parameters measured included: percent rate of meal, the content of DM, ash, Ca and P, and physical properties (angle of response, bulk and compacted bulk densities and specific density). The results showed that grinding and roasting gave no significant effect on specific density and mineral content of the meal product. The rate of meal product and bulk density decreased, while angle of response and compacted bulk density increased significantly. It was concluded that both roasting and grinding could not improve both nutrient content and physical properties of freshwater mussel shell. Key words : freshwater mussel shell, roasting, mineral composition, physical properties
Sifat Fisik Daging Sapi Dark Firm Dry (DFD) Hasil Fermentasi Bakteri Asam Laktat Lactobacillus plantarum I I Arief; T Suryati; R.R A Maheswari
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

A dark firm dry beef (DFD) can be produced in meat from animal with a degree of stress susceptibility. This type of meat is very sticky in texture and not palatable. The aim of the research was to study physical properties of DFD beef fermented by Lactobacillus plantarum combined with cold smoking. The experiment used a randomized block design. DFD beef samples were collected from beef abatoar with pH value of 6.5 - 6.8. The samples were divided into two groups; fermented by Lactobacillus plantarum and fermented naturally (control) for five days fermentation. Fermentation process was combined with cold smoking. The result showed that the pH value, tenderness and color of both groups were significantly influenced by the treatment, but the water holding capacity was not different. DFD beef fermented by Lactobacillus plantarum was more tender, lighter color and had longer sarcomere than control. Sensory analysis showed that color and tenderness of DFD beef fermented by Lactobacillus plantarum were better than control. Key words : dark firm dry beef, fermentation, Lactobacillus plantarum, color, tenderness
Inkorporasi Kromium pada Khamir dan Kapang dengan Substrat Dasar Singkong yang Diberi Kromium Anorganik W D Astuti; T Sutardi; D Evvyernie; T Toharmat
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Organic-chromium (Cr) has higher availability for animals than inorganic-Cr sources. One of organic-Cr sources known is fungi contained high Cr. This organic-Cr was incorporated to fungi protein. Information about the best fungi or microorganisms used in organic-Cr production is still limited. The objective of this experiment was to study organic-Cr production using different kinds of fungi as Cr carrier. Organic-Cr production was conducted in a 4x3 factorial completely randomized experimental design with 3 replications. Four fungi used as carriers in organic-Cr production as the first factor were Saccharomyces cerevisiae, Aspergillus oryzae, Rhizopus oryzae and "ragi tape". The second factor was levels of Cr addition (500, 1000, 1500 mg/kg). Addition of 1000 mg Cr/kg substrate gave the highest Cr incorporation to fungi protein (484 mg/kg) and Cr incorporation efficiency (21.1%). The best fungi used as carrier in organic-Cr production was Rhizopus oryzae which gave the highest Cr incorporation (488 mg/kg) and incorporation efficiency (24.7%). Key words: organic-Cr, production, Saccharomyces cerevisiae, Aspergillus oryzae, Rhyzopus oryzae, "ragi tape"
Penambahan Urea atau DL-Metionina ke dalam Ransum Komplit Biomassa Ubi Jalar pada Kelinci L Khotijah
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Twenty male cross-breed weanling rabbits were used to study the effect of urea or DL-methionine addition in sweet potatoes biomass complete diets. Completely randomized design was used in this experiment with four treatments and five replications. The treatments consisted of A (comercial diet); B (sweet potatoes biomass diet); BU (B + 0.5% urea) and BM (B + 0.5% DL-methionine). The dry matter intake, average daily gain (AVG), feed conversion ratio, dry matter and protein digestibility and nitrogen retention were measured in this experiment. The result showed that the treatments did not significantly affect dry matter intake and feed conversion ratio, digestibility of dry matter and protein, but supplementation of DL-methionine significantly affected average daily gain and nitrogen retention (P < 0.05). It was concluded that urea or DL-methionine supplementation in sweet potatoes biomass diets could support good performance of rabbits and it could be used as an alternative source of feed for rabbits. Key words : rabbit, sweet potatoes, urea, DL-methionine, performance
Produktivitas Kambing Peranakan Etawah yang Diberi Ransum Berbasis Jerami Padi Fermentasi C I Novita; A Sudono; I K Sutama; T Toharmat
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

Rice straw as one of agriculture by product has low nutritive value. Fermentation of rice straw increased its nutrient digestibility and palatability. Present experiments aimed to study the effect of feeding rations composed of concentrate and ground fermented rice straw supplemented with urea and probiotic. The first trial was conducted to study the apparent digestibility of experimental diets in 18 Etawah-grade bucks with 1-1.5 year age and initial body weight of 30.18 ± 8.38 kg. The second trial was conducted to study the effect of feeding experimental rations on reproduction, milk yield and its quality in 24 Etawah-grade does with 1 to 3 years age and initial weight of 35.75 ± 5.72 kg. The rations were as follows; KJP = concentrate + chopped fermented rice straw; KJG = concentrate + ground fermented rice straw; KRG = concentrate + elephant grass. A completely randomized design was applied in both nutrient digestibility and performance trials. In both trials, the rations were offered twice daily. Does and kids were weighted once in two week. Does were milked manually once a week for 3 months post partum. Milk was sampled for determination of its specific gravity, protein, fat and solid content. Gestation length, litter size, birth weigth and weaned weight were recorded. Dry matter (DM) and crude protein (CP) intake, and apparent digestibility of DM did not differ significantly among treatments. However, apparent digestibility of CP in goat offered KJG was lower (P < 0.05) than those of KRG and KJP. DM and CP intake of does was higher (P < 0.05) for the KRG treatment but those were not differ between KJP and KJG treatments. Gestation length, litter size, the body weight of does during pregnancy and lactation, the body weight of kids from birth to weaning, milk yield and quality of milk were not different ammong tretaments. These results suggested that fermented rice straw can be used to substitute the elephant grass. Key words: Goat, straw, fermentation, digestibility, milk, kids
Tingkat Penggunaan Media Massa dan Peran Komunikasi Anggota Kelompok Peternak dalam Jaringan Komunikasi Penyuluhan Sapi Potong A Saleh
Media Peternakan Vol. 29 No. 2 (2006): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

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Abstract

The aims of study were to investigate the communication behavior changes, in term of the level of mass media used by the cattle farmers in utilizing the cattle extension program; and to analyze the participation level of cattle farmers based on their communication roles in the cattle communication network. This research was designed as correlation descriptive survey towards sample of cattle farmers head of families integrated into two groups of advanced category cattle farmers group and two groups of less advanced, lived and having its place of business in three regencies namely the West Java Sukabumi Regency, Central Java Sukohardjo Regency and D.I. Yogyakarta Gunung Kidul Regency. The determination of the regencies and the selected groups were conducted purposively, based on the advance level data of the cattle farmer group derived from the Cattle Farmer Directorate General office of the Ministry of Agriculture. The data analyses were conducted using descriptive analysis comprising of frequency, boxplot, percentage, cross tabulation, correlations matrix, inferences about a mean factor or T2 Hotelling, and byplot test. The results of research showed: (1) there was significant difference among the communication behavior in advanced cattle farmers group and the less advanced group, indicating (the circumstance) a level of mass media usage by cattle farmers in getting information. From prioritized the interpersonal communication relationship in receiving and diffusing information to the media communication behavior, particularly in behavior impact of television broadcast and newspapers. (2) The level of cattle farmers communication role in a cattle communication network comprising of star, mutual pairs and neglectee, did not indicate a communication role as isolate. The advanced cattle farmers group members had a dominant communication role as neglectee, while the less advanced group had a dominant role of mutual pairs. The role of the star, was found more in the less advanced group compared with the advanced group. Key words: cattle extension, communication behavior, communication network, mass media usage, role of group members

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