“Chemical composition and in vitro dry matter digestibility of corn distillers grains with solubles”
Loading...
Files
Date
2013
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Mahatma Phule Krishi Vidyapeeth, Rahuri.
Abstract
The study was conducted to assess the “Chemical composition and in vitro dry matter digestibility of corn distillers grains with solubles”, The samples were collected from different distilleries like Yashraj Distilleries (Satara), Vitthal Distilleries (Solapur), Mali Nagar sugar factory lim.(Akluj), Viraj distilleries (Shirala) and Pranav distilleries (Gangapur).Then samples were analyzed for proximate and detergent constituents, in vitro dry matter digestibility (IVDMD), mineral composition and then energy content was estimated by using prediction equations. Proximate constituents in dried distillers grains with solubles with respect to DM, CP, EE, CF, TA and NFE were 89.76%, 30.00%, 9.80%, 8.40%, 4.54% and 47.20%, respectively. Whereas in WDGS these contents were 29.94%, 30.89%, 10.30%, 8.62%, 4.09% and 46.19%, respectively.
Fiber fractions in DDGS regarding NDF, ADF, hemicellulose, cellulose and lignin were 38.93%, 15.10%, 23.84%, 13.01% and 2.07%, respectively. Whereas, in WDGS these contents were 40.40%, 16.61%, 24.04%, 14.45% and 2.16%, respectively. The in vitro dry matter digestibility of DDGS was 69.36% while it was 69.78% in WDGS.
Mineral composition in DDGS with respect to Ca, P, Mg, K, Na, S, Fe, Zn, Cu and Mn were 0.11%, 0.74%, 0.29%, 1.14%, 0.23%, 0.41%, 336.8 ppm, 71.82 ppm, 9.66 ppm and 69.61 ppm, respectively. Whereas in WDGS these contents were 0.10%, 0.74%, 0.29%, 1.14%, 0.23%, 0.40%, 339.7 ppm, 71.95 ppm, 9.57 ppm and 69.11 ppm respectively.
It was observed that TDN content was 92.16, 77.14, 82.10 and 81.96 per cent in maize, rice, sorghum and wheat DDGS, respectively. It indicated that TDN content in maize DDGS was highest while TDN content in rice DDGS was lowest, which is due to low fat content in rice DDGS. Similar trend was observed in TDN per cent of WDGS. The TDN content in WDGS was found to be 92.19, 81.12, 82.26 and 82.68 per cent in maize, rice, sorghum and wheat DDGS, respectively.
The digestible energy content was found to be 4.06, 3.42, 3.61, 3.61 and 4.00, 3.51, 3.62 and 3.60 Mcal/kg in DDGS and WDGS of maize, rice, sorghum and wheat, respectively.
On the basis of results obtained in this investigation it can be stated that, distillers byproducts are rich source of crude protein, crude fat, crude fiber and minerals and also superior in digestibility. Further it is revealed that dried distillers grains with solubles and wet distillers grains with solubles of maize, rice, sorghum and wheat contains high level of protein and energy to their corresponding grain sources. On the other hand, their high fibre content makes this co-product especially interesting for nutrition respect to various ruminants and nonruminants. Hence DDGS and WDGS are good source of nonconventional feed.