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Effect of processing on nutritive value of corn cobs: Chemical composition and in vitro digestibility Dwi Yulistiani; W Puastuti; E Wina; Supriati .
Jurnal Ilmu Ternak dan Veteriner Vol 17, No 1 (2012): MARCH 2012
Publisher : Indonesian Center for Animal Research and Development (ICARD)

One of the causes of in low productivity of ruminants in Indonesia is the lack of continual availability of high quality feed. Agriculture by-product such as corn cob is potential to be used as roughage for ruminants. However its nutrient quality is low; therefore, processing needs to be done to increase its nutrient quality. The objective of the study was to obtain technology which able to increase the nutritive value of corn corb. Corn cobs were ground to obtain corn grain size and then treated with one of six treatments. These treatments were (1). Urea treatment at the level 3% of DM corn cob, (2). Fermentation using Trichoderma viridae; (3). Combination of fermentation using T. viridae and urea at the level 0.5% DM, (4). Fermentation using Aspergilus niger, (5). Fermentation using A. niger and urea at the level of 0.5% DM and (6). Ensiling of corn cob. All treated samples were dried in an oven then were ground for chemical analyses and in vitro digestibility. The study was done using randomised completely design and the data was analyzed using SAS programe v6.1. Result shows that untreated corn cob had low quality nutritive value which was indicated by its low protein content (2.9%) and low in vitro digestibility (42.5%). All treatments could increase corn cob’s protein contents; the highest increase was on urea treatment and fermentation of corn cob using A. niger supplemented with urea (210 and 172% respectively). The in vitro digestibility was only significantly increased by urea treatment where its digestibility was increased by 43%. On the other hand, fermentation using A. niger either with or without urea supplementation increased neutral detergent fibre digestibility by 300% and 200%. In conclusion, nutritive value of a corn cob can be improved by urea treatment at the level of 3% or by fermentation using A. niger. Key Words: Corn Cob, Silage, Ammoniation, Fermentation

Effect of Supplementations of Comin+ and Zn-biocomplex on the performances of Ettawa Crossbred goats Supriyati .; W Puastuti; I-G.M Budiarsana; I-K Sutama
Jurnal Ilmu Ternak dan Veteriner Vol 17, No 4 (2012): DECEMBER 2012
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Digestibility of ruminant feeds is greatly determined by ruminal fermentation which in turn is greatly affected by micro-ecology of the rumen. Manipulation of micro-ecology such as supplementing with various yeasts or micro elements could improve digestibility of the feed. The effect of Comin+ (R1) and Zn-biocomplex (R2) alone or their combination (R3) on performance of Ettawa Crossbred kids, fed concentrate containing Aspergillus oryzae (R0) was studied. Twenty four Ettawa Crossbred kids (6-8 month of age; initial liveweights =16.63±2.10 kg) were divided into 4 groups. Feeds given were King grass (Pennicetum purpuroides) ad libitum and concentrate. The observations were carried out for 16 weeks with 2 weeks adaptation period and the experiment was conducted in a completely randomized design with 4 treatments and 6 replications. The results showed that supplementations significantly (P < 0.05) increased total DM intakes from 685 g/d (R0) became 748, 711 and 858 g/d; and grass DM intakes from 304 g/d (R0) became 373, 331 and 479 g/d for R1, R2 and R3, respectively. Digestibilities of DM, NDF and DE/GE were not affected by supplementation, but supplementations significantly (P < 0.05) affected digestibilities of ADF and CP. Supplementation also significantly improved (P < 0.05) ADG from 65.18 g/d (R0) became 94.64, 83.04 and 90.77 g/d; and FCR from 10.51 (R0) became 7.82, 8.36 and 9.46 for R1, R2 and R3, respectively. It was concluded that supplementation of Comin+ (R1) gave the best growth performance of Ettawa Croosbred goats, where ADG and FCR improved by 45.20% and 34.40%. Key Words: Supplementation, Comin+ , Zn-biocomplex, Performances, Goats

The effect of feeding mixtures of banana trunk and soybean meal on lambs performance I-W Mathius; D Yulistiani; w Puastuti; M Martawidjaja
Jurnal Ilmu Ternak dan Veteriner Vol 6, No 3 (2001): SEPTEMBER 2001
Publisher : Indonesian Center for Animal Research and Development (ICARD)

This study was intended to determine the effects of increasing the ratio of banana trunk to soybean meal on intake, nitrogen excretion and lambs performance. Sixteen lambs (averaging 21.21 + 1.69 kg) were pen individually and fed a basal diet consisted of chopped fresh king grass and commercial concentrate and unlimited access of water. Lambs were randomly assigned to one out of four different ratio of banana trunk to soybean meal as feed supplements, i.e. (R0) 0:1; (R1) 1:1; (R2) 2:1 and (R3) 4:1. Results showed that the inclusion of banana trunk had no adverse effect on lambs performance. As it is expected, altering the ratio of banana trunk to soybean meal increased (P < 0.05) dry matter intake of forage as well as total dry matter intake. The digestion coefficient of dietary ration was not affected (P >0.05) by feed supplement. Despite of no difference was observed in the coefficient of nitrogen digestibility, apparent fecal and urine N-output were significantly (P < 0.05) affected. The highest ratio of fed supplement (R3) tended to decrease nitrogen retention. Overall data indicated that lambs offered basal diet supplemented with R2 treatment accumulated more N per-day, than those fed other treatments, and consequently lambs performance was the best on those fed R2 treatment. Key words: Banana trunk, protected protein, lambs

Biological value (in vitro and in sacco) of chemically treated feather as rumen by pass protein source W Puastuti; D Yulistiani; I-W Mathius
Jurnal Ilmu Ternak dan Veteriner Vol 9, No 2 (2004): JUNE 2004
Publisher : Indonesian Center for Animal Research and Development (ICARD)

A series of experiments has been conducted to study chemical processing method of feather meal using hydrocloric acid (HCl) and to evaluate the biological values by in vitro and is sacco methods of the hydrolitic feather meal (HBA). Feather meal was hydrolyzed using four levels of HCl concentration (i.e.0, 6, 12 and 24%) in three incubation times (i.e. 2, 4, and 6 days). The hydrolysis reaction was carried out in closed container in the ratio of feather meal and HCl of 2:1 (w/v). In vitro evaluation was conducted to measure dry matter (DM) and organic matter (OM) digestibility, DM solubility, ammonia (NH3) and volatile fatty acid (VFA) content. In sacco to observe the degradation of HBA crude protein. Results of in sacco evaluation in rumen showed that soluble and degraded crude proteins (CP) were significantly only affected by HCl concentration (P<0.01). The rate and the amount of degraded protein in 24 hours inclution in the rumen were affected by the HCl concentration and incubation time of hydrolysis. More amino acid degradation occurred on longer time showed that HCl had quadratic effect (P<0,01) on pH of HBA. However durations of hydrolysis did not significantly affect acidity (P>0.05). In vitro DM and OM digestibilities of HBA increased as the concentration of HCl was increased. The increase of DM digestibility followed the equation Y = -0.0231x3 + 0.7323x2 – 1.5716x + 12.383 (r = 0.994); and the OM digestibility followed the equation Y = -0.0229x3 + 0.7194x2 – 1.0606x + 15.951 (r = 0.993). Time of incubation, on the other hand, did not affect OM and DM digestibilities (P>0.05). DM solubility of HBA was significantly affected by HCl concentration and the length of incubation time (P<0.01). The increase of DM solubility was followed by the increase of NH3 content (P<0.01). The relation between DM solubility and NH3 content followed the equation Y = 0.4365x + 5.4047 (r = 0.966). The increase of DM solubility followed the equation Y = -0.027x3 + 0.9596x2 – 4.8142x + 5.3878 (r = 0.973) and the increase of NH3 content followed the equation Y = -0.0085x3 + 0.3175x2 – 1.4139x + 7.0889 (r = 0.992). Result of in sacco evaluation showed that fraction of crude protein (CP) disolved and fraction of CP degraded in rumen was significantly affected by HCl concentration (P<0.01), while the rate of CP degradation and the amount of fraction degraded during 24 hours in the rumen were affected by the HCl concentration and the durations of hydrolysis (P<0.01) indicating that more feather meal protein was hydrolized by HCl, therefore weakened or cut the chain of amino acid in the feather protein. Treatment with 12% HCl for 4 days hydrolysis of feather meal resulted in CP fraction degradation during 24 hours incubation in the rumen of 53%, indicating that the potency of CP of HBA as rumen by pass protein was 47%. Key words: Chicken feather, HCl hydrolysis, digestibility by pass protein

Carrying Capacity for Ruminant Based on Plantation Byproducts and Potency of Enteric Methane Emission Gresy Eva Tresia; W Puastuti; I Inounu
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 31, No 1 (2021): March 2021
Publisher : Indonesian Center for Animal Research and Development

Feed is one of the main pillars that need to be considered in optimizing production parameters in order to develop an efficient livestock business. Two aspects that need to be considered in order to make agricultural byproducts as a source of feed; those are the availability of raw materials for animal rations with high economic value and the function to reduce environmental pollution. Methane emissions are not only related to environmental problems, but also reflect the loss of some energy from livestock so that it cannot be used for the production process. The purpose of this paper is to review and estimate the carrying capacity for ruminant based on plantation by-products based feed and potential enteric methane emissions. The availability of feed from agricultural byproducts in Indonesia is estimated at 69.6 million tonnes of dry matter (DM), 34.8 million of total digestible nutrient (TDN), and 5 million tonnes of crude protein (CP)/year so it is estimated that it can accommodate 62.4 million livestock unit (LU) based on the DM availability or 39.1 million LU based on TDN availability or 51.6 million LU based on CP availability. From these calculations, it was found that the carrying capacity for ruminant in Indonesia could still be increased much greater than the current livestock population, namely 21.7-45 million livestock units if all byproducts are used entirely as components in rations. There are two groups of feed originating from plantation byproducts based on the potential for methane emissions produced, namely low (65-73 g CH4 / kg of material) and high (83-103 g CH4 / kg of material). Utilization of plantation byproducts as ruminant feed is expected to overcome the shortage of forage, especially during dry season. Utilization of these byproducts which in line with efforts to reduce methane emissions would enhance the development of livestock populations in friendly environment.

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