Preference and Passage through the Gastrointestinal Tract of Paddy Rice in Young Chicks

Abstract

Rice grain for feed has been used for chicken feed as a substitute for corn, since the nutritive values of corn and rice are similar. However, it is unclear whether rice grain for feed should be available for young chicks from the early stages of ages. It was reported that the preference for unpolished rice was low, but no information was available for paddy rice (PR) which is low in digestibility. In the present study, therefore, preference for PR and the passage of feed through the gastrointestinal tract were investigated. In order to improve this preference, the effect of mixing PR with a practical diet was compared with early learning for adapting to PR. In addition, it was confirmed that the passage rate of PR is improved by the addition of grit, an enzyme or lysine. As a result, replacing 60% of a practical diet with PR was found to significantly increase intake of feed in comparison with the practical diet alone. The preference for PR was very clear irrespective of whether early learning for adapting to PR occurred just after hatching or not. The addition of an enzyme improved the passage of feed through the whole gastrointestinal tract, although the addition of grit and lysine did not affect it. On the other hand, the passage of feed from the crop was not improved by any treatments. In conclusion, mixing PR and the practical diet improved feed intake and the passage of feed through the gastrointestinal tract was improved by adding enzymes in young chicks.

Determination of the Gastrointestinal Passage Rate Using Dexa Technology and Barium Sulfate As a Marker in Japanese Quails

“…results of Nóbrega et al (2020). The average in this study was 32 min similar to the results obtained by Nóbrega et al (2020), who found that Japanese quails have the shortest time between entry and exit of food in the GIT when compared with other production birds such as broilers having a FAT of 80 to 90 min (Almirall & Esteve-Garcia, 1994;Yamanaga & Furuse, 2014) and commercial layers from 155 to 193 min (Mateos et al, 1982;Rougière & Carré, 2010).…”

Effect of Replacing Dietary Corn with Broken Rice on Goose Growth Performance, Body Size and Bare Skin Color

“…Under the trend of increasing global demand for corn, poultry producers are being forced to seek local raw materials to replace corn in animal feed. A large number of researchers have investigated the effect of different feed ingredients on the performance of poultry such as rice bran [ 1 , 2 ], defatted rice bran [ 3 , 4 ], paddy rice [ 5 , 6 , 7 ], whole wheat [ 8 , 9 , 10 ] and millet [ 11 , 12 , 13 ]. China is the largest rice producer in the world, accounting for 27.63% of global rice production [ 14 ].…”