Jurnal Ilmu Ternak dan Veteriner

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    Performance of Dairy Calves Fed Diet Containing Ca-Palm Oil Fatty Acid and Sapindus rarak Fruit
    (Indonesian Center for Animal Research and Development (ICARD), 2018) Wina E; Widiawati Y; Tangendjaja B
    Calcium salts of palm oil fatty acid (Ca-FA) is a high dense energy source that is protected from degradation in the rumen. Sapindus rarak fruits (SrF) contain high level of saponin and have been reported to increase body weight sheep or cattle and reduced protozoa population in the rumen. This experiment used a combination of Ca-FA and SrF to improve the performance of weaned dairy calves. Thirty two heads of calves of Indonesian Holstein were used in factorial block design experiment (2 x 2). The first factor was Ca-FA (with 2.5% and without addition of Ca-FA) while the second factor was SrF (with 0.3% and without addition of SrF in total diet) and sex of the animal as block was applied. The feed as total mixed ration contained crude protein (CP) 17%, total digestible nutrien (TDN) minimum 69%, Net energy for maintenance 1.70 Mcal/kg and Net energy for gain 0.03Mcal/kg. It was fed 3% of body weight of the animals for 14 weeks included 2 weeks of adaptation period. Feces collection for measuring digestibility of feed was conducted at the end of experiment. Average daily gain (ADG) of calves received SrF was higher than without SrF (896.9 vs 853.7 g/day) while ADG received CaFA was lower than without CaFA (860.6 vs 890 g/day) but both effects were not significantly different (P>0.05). DM intake due to SrF treatment tended to be higher than control treatment (4.4 vs 4.3 kg/day). DM digestibility was not different among treatments. In conclusion, calves received supplementation of 0.3% SrF fruit in the diet had similar average daily gain with those given unsupplemented diet but had reduced diarrhea cases. The use of Ca palm oil fatty acid as a dense energy source at 2.5% in the diet did not show any negative effect on calves performance.
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    Manipulation of rumen fermentation by bioindustrial products of cashew nut shell (Anacardiumoccidentale) to reduce methane and enhance other products
    (Indonesian Center for Animal Research and Development (ICARD), 2028) Andi Saenab; Wiryawan KG; Retnani Y.; Elizabeth Wina
    One of the strategies to reduce methane produced by ruminants is by the application of feed additive from plant materials. One of the potential plants is cashew plant especially its shell. The cashew nut shell can be processed to become 3 bioindustrial products; ie biofat, biochar, biosmoke. The aim of this research was to evaluate the effectivity of different levels of biofat, biochar and biosmoke against methane and other fermented products.This experiment was arranged in block randomised design. The treatments were: Control (substrate=S), Biofat: S+0.25 µLmL-1, S+0.5 µLmL-1, S+0.75 µLmL-1; Biochar: S+0.1 mgmL-1, S+0.2 mgmL-1, S+0.3 mgmL-1; Biosmoke: S + 2.5 µLmL-1, S+5.0 µLmL-1, S + level7.5 µLmL-1. Each treatment was done in duplicates and the in vitro experiment was repeated 4 times. The measured variables were: total gas production, methane production, (dry matter, organic matter, NDF) degradability, ammonia concentration (NH3) and partial VFA concentration. The results showed that biofat, biochar and biosmoke reduced methane productionas much as 43.88%, 24.21%, 37.88% at the highest level of inclusion, respectively. NH3 slightly increased by biochar and biosmoke addition compared to control. Molar proportion of acetic acid decreased and propionic acid increased by addition of cashew nut shell bioindustrial products compared to control. Organik matter degradability decreased significantly with biofat and biosmoke addition. Different mechanisms of biofat, biochar and biosmoke were proposed in affecting rumen fermentation. It can be concluded that each bioindustrial product of cashew nut shell (biofat, biochar and biosmoke) can be utilised as feed additive to reduce methane and increase propionic acid in the rumen fermentation.
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    Contamination of Escherichia coli O157:H7 in Dairy Cow Farms
    (Indonesian Center for Animal Research and Development (ICARD), 2017) Rachmawati F.; Ariyanti T
    E. coli serotype O157:H7 is a foodborne pathogen that endangers human health. Cattle are the main reservoir of this bacterium. E. coli O157:H7 that come out of the livestock can contaminate the surrounding environment, dairy products, meat, vegetable or fruit crops, so it can act as a source of infection and disease in humans. This research was conducted to identify the contamination of E. coli O157:H7 on dairy cow farms so the current situation is known. Sampling area for this research was dairy cow farm in Depok, Cianjur, Sukabumi, and Bandung. Types of samples taken are cow anal swab or fresh feces and livestock drinking water. Isolation of E. coli bacteria was done on mTSB media, agar MacConkey, and Eosin Methylene Agar. Identification of bacteria as E. coli O157:H7 was done by biochemical test and for serotype determination was used agglutination test using monospesifik antiserum for O157 and H7. The results of research showed that of the total 178 samples had 126 (70.8%) samples containing E. coli bacteria. Of the 126 samples containing E. coli bacteria, 94 (74.6%) were determined as E. coli serotype O157:H7. The presence of E. coli O157:H7 contaminants on dairy cow farms, their potential impacts on human health, prevention and control of the disease is discussed in this paper.
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    Novel Mutation of Exon 5 Prolactin Gene in IPB-D1 Chicken
    (Indonesian Center for Animal Research and Development (ICARD), ) Rohmah, Lailatul; Bogor Agricultural University, Bogor 16680; Darwati, Sri; Bogor Agricultural University, Bogor 16680; Ulupi, Niken; Bogor Agricultural University, Bogor 16680; Khaerunnisa, Isyana; University of Insan Cendekia Mandiri (former name: Bandung Raya University), Bandung 40272; Sumantri, Cece; Bogor Agricultural University, Bogor 16680
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    Association of SNP g.232 G>T Calpain Gene with Growth and Live Meat Quality Prediction using Ultrasound Images in Bali Cattle
    (Indonesian Center for Animal Research and Development (ICARD), ) Dairoh, Dairoh; IPB University; Jakaria, Jakaria; IPB University; Ulum, Mokhamad Fakhrul; IPB University; Ishak, Andi Baso Lompengeng; IRIAP; Sumantri, Cece; IPB University