Media Peternakan 

About: Media Peternakan is an academic journal. The journal publishes majorly in the area(s): Feed conversion ratio & Population. It has an ISSN identifier of 0126-0472. It is also open access. Over the lifetime, 442 publications have been published receiving 2440 citations.

Herbage Production and Quality of Shrub Indigofera Treated by Different Concentration of Foliar Fertilizer

Abstract: A field experiment on fodder legume Indigofera sp. was conducted to investigate the effects of foliar fertilizer concentration on forage yield and quality, and to identify optimum concentrations among the fertilizer treatments on herbage yield, chemical composition (CP, NDF, ADF, minerals), and in vitro dry matter (IVDMD) as wll as organic matter (IVOMD) digestibility in goat's rumen. Randomized block design was used for the six concentration of fertilizer treatments; control, 10, 20, 30, 40, and 50 g/10 l with 3 replicates. Leaves were sprayed with foliar fertilizer at 30, 34, 38, and 42 days after harvest. Samples were collected at 2 harvest times with 60 days cutting interval. Application of the foliar fertilizer up to 30 g/10 l significantly increased herbage DM yield, twig numbers, tannin, saponin, Ca and P content, as well as herbage digestibility (IVDMD and IVOMD). The lower and higher concentration of foliar fertilizer resulted in lower value of those parameters, but NDF and ADF contents had the opposite patterns. The optimum level of foliar fertilizer that resulted the highest herbage yield and quality was 30 g/10 l, and the highest in vitro digestibility and Ca concentration was 20 g/10 l.

Herbage Yield and Quality of Two Vegetative Parts of Indigofera at Different Times of First Regrowth Defoliation

Abstract: A field experiment using Indigofera sp. was conducted at the Farm Research Station of Faculty of Animal Science, Bogor Agricultural University, Darmaga Campus, during 2008-2009. The objectives of this study were to identify the effect of defoliation time on herbage dry-matter production, protein, fiber contents, and in vitro digestibility of different vegetative parts of Indigofera sp. Block randomized design comprising three levels of defoliation time at first regrowth after pruning (38, 68, and 88 days) with 3 replications were used in this experiment. Pruning was done 3 months after transplanted into the experimental plots. First defoliation was conducted after the plant had been pruned. Herbage was derived from different vegetative parts, i.e: leaves of branch base and all parts of shoot tips. The results revealed significant effect of defoliation time on dry matter (DM) production of both branch base and shoot tip herbages. Crude fiber (CF), neutral detergent fiber (NDF), acid detergent fiber (ADF) and in vitro organic matter digestibility (IVOMD) of branch base were influenced significantly by defoliation time, except crude protein (CP) and in vitro dry matter digestibility (IVDMD). Defoliation time significantly affected CP, CF, NDF, ADF, IVDMD and IVOMD of herbage derived from shoot tips. Key words: Indigofera, defoliation time, herbage quality, herbage yield

Condensed Tannin Effects on Nitrogen Digestion in Ruminants: a Meta-analysis From in Vitro and in Vivo Studies

Abstract: Statistical meta-analysis approach was conducted to quantify the effect of a wide range of dietary condensed tannin (CT) concentration on nitrogen digestion in ruminants. A total of 19 studies from published papers and own previously unpublished studies comprising of 100 treatments were pooled in a database. The database was segregated into two categories based on different methods or systems where the experiments were carried out, i.e. in vitro (6 studies, 65 treatments) and in vivo experiments (13 studies, 35 treatments). Mixed model effects were applied to the data; different studies were treated as random effects whereas dietary CT (continuous predictor variable) was treated as fixed effects. The results showed that in the in vitro studies, organic matter digestibility (OMD) decreased linearly ( P =0.002) as CT concentration in feed increased. Likewise, such linear decrease of OMD at increasing CT was observed in the in vivo studies ( P < 0.001) as well as crude protein digestibility (CPD, P < 0.001). The variation on in vitro OMD was higher at lower level of CT. Nitrogen retention was not significantly affected by CT level. It was concluded that CT reduced nutrient digestibility in ruminants, but its effect on N retention was unclear from the present study.

Penentuan Aktivitas Biologis Tanin Beberapa Hijauan secara in Vitro Menggunakan 'Hohenheim Gas Test' dengan Polietilen Glikol Sebagai Determinan

Abstract: Leaves from trees are alternative source of forage for ruminant's feed. However, most of the leaves contain high concentration of phenolic compounds, especially in the form of tannins. This experiment was aimed at quantifying biological activity of tannins using in vitro gas production method without and with the addition of polyethylene glycol (PEG). The leaves used in this experiment was Salix alba, Rhus typhina and Peltiphyllum peltatum . Several rumen fermentation variables, such as organic matter digestibility (OMD), metabolizable energy (ME) and total VFA production were measured. The results showed that crude protein, NDF and hemicellulose contents of S. alba leaves were the highest, while there was no difference in ADF content from the others. Biological activity of tannins in S. alba, R. Typhina and P. Peltatum were 0.7%, 45.7% and 122.6%, respectively. There was a significant correlation between total phenols and tannins biological activity (r=0.70; P in vitro gas production, organic matter digestibility, metabolizable energy and total VFA production after 24 hours incubation period. Key words: tannins, PEG, in vitro, fermentation, Hohenheim gas test

Pengaruh Iklim Mikro terhadap Respons Fisiologis Sapi Peranakan Fries Holland dan Modifikasi Lingkungan untuk Meningkatkan Produktivitasnya (ULASAN)

Abstract: Most of Holstein in Indonesia were imported from European countries which have temperate climate (13-25 0 C). If those Holstein were kept under high temperature and high humidity and exposed to direct solar radiation, the cattles would be experienced with heat stress, resulted in decreasing appetite, increased water intake, decreased metabolism, increased catabolism, increased heat loss through evaporation, decreased hormone concentration in blood, increased body temperature, increased respiration and heart rate and behavioral changes. To reduce the heat stress can be achieved by environment modification, such as type of animal house construction, type of roof material selected for animal house and determination of animal housing height. The improvement of environmental condition was gained for maintaining the animal heat balance in steady state, due to reducing the thermoregulatory responses (i.e heart rate, respiration rate and mean body temperature). Controlling the heat stressed animals to lower thermoregulatory activities will improve their productivity. Key words : Holstein, physiological responses, heat stress, micro-climate, environmental modification