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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology WARTAZOA Indonesian Bulletin of Animal and Veterinary Sciences
B P Widyobroto
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Agriculture, Biological Sciences & Forestry Veterinary

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Determination of in Vitro Digestibility of Tropical Feeds Using Cattle Faeces as Rumen Fluid Alternative R Utomo; M Soedjono; B P Widyobroto; . Sudirman
Media Peternakan Vol. 34 No. 3 (2011): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (642.77 KB) | DOI: 10.5398/medpet.2011.34.3.207

Abstract

The research was conducted to compare the ability of faeces dissolved in distilled water (P1), saline solution (P2), artificial saliva (P3), and rumen fluid (RF) as sources of inoculant  in  in vitro organic matter digestibilities (IVOMD) of rice straw, corn stover, napier grass, and pangola grass. The rumen fluid was collected from two rumen fistulated Ongole Crossbred Cows of 306 and 333 kg body weight (BW). The cows were fed 3% of BW consisted of 70% napier grass and 30% concentrate. At the end of  30 days  feeding, faecal solution was made out of 350 g fresh faeces dissolved in 1 l of each solvent, homogenized using blender for 30 second, while rumen liquor were collected directly from fistula. After straining with four layers of cheesecloth both faecal solution and rumen liquid were mixed with artificial saliva (1:4 v/v). Fifty ml of each inoculants was pipetted  into each incubator tube (100 ml) containing  500 mg sample. The tubes were then  incubated at 39 oC for 48 h. Value of  IVOMD of napier grass, rice straw, corn stover, and pangola grass did not differ among the faecal solvents, but significantly lower (Pin vitro organic matter to predict digestibility of fibrous feed determination. However, the faecal solvent as inoculant produced lower in vitro digestibility than that of rumen fluid.
The Use of Essential Oils as Rumen Modifier in Dairy Cows Dewi Ayu Ratih Daning; C Hanim; B P Widyobroto; L M Yusiati
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 30, No 4 (2020): December 2020
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.987 KB) | DOI: 10.14334/wartazoa.v30i4.2524

Abstract

Feed efficiency is essential for dairy cows because it can increase production and quality of milk, and reduce methane emissions in the environment. One of the strategies on increasing feed efficiency is using rumen modifier. Essential oils have antimicrobial activities and have been used in rumen modifier in dairy cows. The aim of this paper is to review several studies on the utilization of essential oils as feed additive to enhance production and quality of milk of dairy cow. Based on some research reports, using essential oils which contained thymol, eugenol, cinnamaldehyde and carvacrol in dairy cattle feed decreased the population of protozoa, methanogens, proteolytic, and biohydrogenase bacteria. The impact of engineering of the rumen microbial population has led to optimal rumen fermentation resulted in the efficiency of carbohydrate, protein, and fat utilizations. It can be concluded that essential oils are potential as rumen modifier by inhibit methanogenesis, increase propionate, energy efficiency and ruminal by pass protein. The inconsistent results on milk production and milk fat requires further research to study deeper the effect of dosage and type of essential oils on dairy cows  performance.
Co-Authors . Sudirman C Hanim Dewi Ratih Ayu Daning, Dewi Ratih Ayu Hanim, C L M Yusiati M Soedjono R Utomo