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- W89148664 abstract "A series of experiments were conducted to evaluate barley fodder (BF) as a feed forruminants. Barley seeds were grown in a specially designed and controlledenvironment cabin at 15 - 18°C. The first experiment was conducted to germinatebarley seeds from day 0 (dO) to day 10 (dIO, n=ll) and samples were collected dailyfor chemical composition analysis. In the second experiment, the rumen simulationtechnique (RUSITEC) was used to measure the in vitro dry matter (DM) and crudeprotein (CP) digestibility and the volatile fatty acids (VF A) produced by BF atdifferent times. The nylon bag technique was also used to measure the DMdegradability of BF in the rumen of cattle at 2, 4, 8, 12, 24 and 48 hours.The third experiment on the intake and digestibility of eight-day old BF wasmeasured by an in vivo technique, using four bucks. The fourth experiment involvedthe measurement of rumen fluid parameters (pH, ammonia and VFA) in three rumenfistulated bucks that were fed on eight-day old BF ad libitum. The CP, organic matter (OM), ether extract (EE), neutral detergent fibre (NDF), aciddetergent fibre (ADF) and crude fibre (CF) contents of BF from d1 to d10 increased,but the DM content decreased with the age of BF. DM content at d7 and d8 were 16and 18% while CP content were 12 and 13% respectively. The amount of calcium(Ca), phosphorus (P) and Nitrate (N03) did not change significantly throughoutsprouting time. The in vivo, in vitro and in sacco DM degradability studies showedthat 80 to 100% DM loss for BF harvested on d7 to dW.DM intake was lower in the third experiment although digestion coefficient (DC) ofBF was very high (98%). This condition was probably due to the abnormal growthof BF during the experimental period. Rumen fluid pH was 5.9-6.0 and ammonia-N(NH3-N) content was 7.0 to 8.8 mg/mL. Total fatty acids production was 70 to 1 00mmoVL between two and eight hour of collection. The acetic:propionic:butyricratios were 58:36:1.3, 68:25:2, 61:35:1.2, 64:33:0.7 and 65:32:1 at 0, 2, 4, 6 and 8hours, respectively.Overall results showed that VFA and ammonia-nitrogen (NH3-N) were produced at aminimum level when BF was given ad libitum although the digestibility was higherin both in sacco and in vitro studies. BF should be given at different levels in orderto get optimum pH, VFA and NH3-N production." @default.
- W89148664 created "2016-06-24" @default.
- W89148664 creator A5027246685 @default.
- W89148664 date "2001-09-01" @default.
- W89148664 modified "2023-09-26" @default.
- W89148664 title "Nutritive Value of Barley Fodder Grown in a Hydroponics System" @default.
- W89148664 hasPublicationYear "2001" @default.
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