USING CASSAVA BAGASSE FROM INDUSTRIAL STARCH PROCESSING FOR FATTENING CATTLE

USING CASSAVA BAGASSE FROM INDUSTRIAL STARCH PROCESSING FOR FATTENING CATTLE

The research was designed for evaluating effect of replacement of cassava meal by the dried cassava bagasse from starch processing factory in concentrate feed diet for fattening cattle and supply cassava bagasse silage for fattened cattle with the basic  feed was ad libitum of young Panicum maximum grass. The result of research was show 1) the replacement up to 100% of cassava meal by dried cassava bagasse was not significant affect to the feed intake, growth rate of fattened cattle, while the benefit of cattle fattening was significant higher; 2) the supplication of cassava bagasse silage for cattle, that was ad libitum grasses, was significant improvement of feed intake, growth rate and benefit of fattening cattle..

1 - Introduction
Fattening is one of the typical activities of farmers in Ea Kar convert small livestock production to produce goods and market orientation ( Tan Khanh Truong , et al , 2011 ) . One of the difficulties of farmers is the cost of feed ( TA ) mixture for fattening should sizable economic efficiency is not high . Processing plant starch Ea Kar average each year about 36 thousand tons of processed starch and cassava pulp fresh estimate emissions of 60,000 tons / year . Cassava pulp consumption in the rainy season is not a source of heavy pollution from cassava flour processing plant . Dried cassava pulp prices 3 to 5 times lower than tapioca . In fresh cassava pulp contains about 8-10 % starch , 15-20 % crude fiber ( Bui Quang Tuan , 2005) . Cassava pulp as silage or dried TA additional sources of value for ruminants ( March et al , 2006) . Method silage reduced HCN and prolonged use ( Ba et al , 2006 ; Mai Thi Thom and Bui Quang Tuan , 2006 ; Bui Quang Tuan , 2005 ; List and Preston , 1993) . So processing research and industrial uses of cassava residue in cattle significant leverage existing resources and addressing TA environmental pollution caused by the cassava pulp in the cassava flour processing plant .
 The objective of the research topic :
- Evaluate the impact of cassava flour substitute with dried cassava pulp in TA mixed rations for fattening beef cattle ;
- Assessing the impact of using cassava pulp silage supplement for cattle fattening ;
- Assessing the impact of using cassava pulp to economic efficiency in beef fattening .
2 - Content and Research Methods
2.1 Study sites
The experiment was conducted at the local host club , Kmut Ea , Ea Kar district , Dak Lak province .
2.2 Subjects and study materials
Study subjects : Sind bulls 20-24 months
Materials research : cassava pulp purchased from cassava processing plant in Ea Kar processed according to two methods of drying and anaerobic silage .
3 - Results and discussion
Results in Table 1 show that :
- The 4 lots TN1 , TN2 , TN3 , TN4 with the addition of TA mixed or fermented cassava pulp are used to improve dry matter ( DM ) intake significantly compared with the control group ( 6 , 32 to 6.77 kg versus 5.59 kg ) .
- Lot TN1 ( cassava pulp silage supplement ) may amount to DM intake was significantly higher than the additional treatments TA mixture ( 6.77 kg versus 6.32 kg ) , however the amount of energy exchange and protein intake have no significant difference ( p > 0.05 ) .
- Lot TN3 and TN4 with the replacement of 50 % and 100 % of pure cassava flour with cassava pulp has dried amount of DM , energy and protein intake swap wrong no significant difference .
- The percentage of protein compared with DM in 3 batches of mixed use TA 15.3 % from 11.11 % protein - 11 , 23 % significantly higher than plots using cassava pulp silage ( 10 % ) and the control group ( 9.46 % ) , needs protein for fattening beef NRC 1996.
- The percentage of dry matter intake than body weight of the four experimental groups are not significantly different errors ( P < 0.05 ) and significantly higher than the control group ( p < 0.05 ) .
Nguyen Hai Quan and Nguyen Xuan Ba (2009 ) reported that the addition of fermented cassava pulp volume increases, the amount of organic matter intake of sheep increased significantly , due to palatability and stimulate appetite cattle . Werner W. Stur and Peter M. Horne (2000 ) reported that intake sizeable dependence on the ratio of protein in the diet , supplementation mixture TA protein and 15.3 % in Group 3 had lots TN2 increase intake of experimental cows . Standard eat NRC 1996, said that the demand of protein for fattening bulls need from 9.5 to 11.5 % ( compared to DM ) to cows can achieve increases in the 0.8 to 1.2 kg / head / day , cow fattening while providing high quality full TA can eat into a corresponding amount of DM 2.5 to 3.0 % compared to the mass of the body ( Werner W. Stur and Peter M. Horne ) so in this experiment feed intake of cows satisfactory experiments .
4 - Conclusion
- The alternative to 100 % cassava flour in TA mixed ration for fattening beef cattle breeds based TA LaiSind rough lemon grass is green , do not significantly affect intake TA , bovine growth experiments , while profits from fattening significantly higher .
- Additional free cassava pulp silage forage -based TA is 30 days old lemon grass cutting , significantly improve the dry matter intake TA , growth and economic efficiency in feedlot cattle