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Veterinary Medicine

2004

In vitro digestibility

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Full-Text Articles in Medicine and Health Sciences

The Effects Of Urea And Molasses Addition Into Corn Harvested At Early-Milk Stage On Silage Quality And Digestible Dry Matter Yield, Ni̇hat Denek, Suphi̇ Deni̇z Jan 2004

The Effects Of Urea And Molasses Addition Into Corn Harvested At Early-Milk Stage On Silage Quality And Digestible Dry Matter Yield, Ni̇hat Denek, Suphi̇ Deni̇z

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was to evaluate the effects of the addition of 0.5% urea or 0.5% urea plus 4% (w/w) molasses into corn varieties (Rx-947, 33-94, Frassino, and Arifiye) harvested at the early-milk stage on silage quality, in vitro digestibility and digestible dry matter (DM) yield. The addition of urea into silage increased the CP content (P < 0,05). The neutral detergent fiber and acid detergent fiber contents of the control silages were 69.40 and 38.68 for Rx-947, 69.34 and 38.69 for 33-94, 62.67 and 34.93 for Frassino, and 64.35 and 37.04 for Arifiye (P < 0,05). The addition of urea or urea plus molasses into silage increased the silage pH in all varieties, except for Rx-947 (P < 0,05). The lactic, acetic, propionic and butyric acid contents of the silage samples were between 23.2 and 153.3, 7.8 and 23.4, 0.6 and 1.6, and 0.0 and 0.54 g/kg DM, respectively. The addition of urea or urea and molasses into Rx-947 and Frassino varieties and the addition of urea only into the 33-94 variety increased silage lactic acid levels. The addition of urea and molasses into Rx-947, Frassino and Arifiye varieties also increased silage acetic acid levels (P < 0,05). There was a significant difference only between the Frassino and Arifiye varieties on this parameter (P < 0,05). The addition of urea only into silage decreased DM digestibility; the addition of molasses with urea, however, eliminated this negative effect of urea on digestibilit in all varieties, except for Frassino (P < 0,05). Digestible DM yields of untreated silage were 863.68, 1142.43, 1044.43, and 1075.07 kg/decare (10 decares = 1 hectare) for Rx-947, 33-94, Frassino and Arifiye, respectively (P < 0,05). The digestible DM yield of untreated Rx-947 silage was significantly lower than those of the others (P < 0,05). It can be concluded that corn varieties harvested at the early-milk stage (20% DM) can be ensiled, and that urea and molasses can be used as silage additive to increase CP and energy content of silages.


The Effects Of Adding Urea Or Urea + Molasses In Some Sorghum Varieties Harvested At Dough Stage On Silage Quality And Digestible Dry Matter Yield, Murat Demi̇rel, Suphi̇ Deni̇z, İbrahi̇m Yilmaz, Hüseyi̇n Nursoy Jan 2004

The Effects Of Adding Urea Or Urea + Molasses In Some Sorghum Varieties Harvested At Dough Stage On Silage Quality And Digestible Dry Matter Yield, Murat Demi̇rel, Suphi̇ Deni̇z, İbrahi̇m Yilmaz, Hüseyi̇n Nursoy

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to evaluate the effects of the addition of 0.5% urea or 0.5% urea plus 4% molasses into some sorghum varieties (Gözde, P-988, Grazer and Grass-II) harvested at the dough stage on silage quality, in vitro dry matter (DM) digestibility and digestible DM yields. Triplicate silage samples from each variety and treatment group, a total of 36 silage samples, were prepared in 1 l mino-silos and incubated for 90 days. Silage DM and crude protein (CP) levels ranged from 29.56 to 33.46%, and from 7.16 to 12.63%, respectively. Addition of urea or urea + molasses …


The Determination Of Digestibility And Metabolizable Energy Levels Of Some Forages Commonly Used In Ruminant Nutrition By In Vitro Methods, Ni̇hat Denek, Suphi̇ Deni̇z Jan 2004

The Determination Of Digestibility And Metabolizable Energy Levels Of Some Forages Commonly Used In Ruminant Nutrition By In Vitro Methods, Ni̇hat Denek, Suphi̇ Deni̇z

Turkish Journal of Veterinary & Animal Sciences

This study was carried out to determine the dry matter (DM) and organic matter (OM) digestibilities, and metabolizable energy levels of some forages commonly used in ruminant nutrition by 2 different in vitro methods; the enzyme technique and the 2- stage method (rumen fluid + HCl-pepcine). Seven different samples of alfalfa hays, sainfoin hay and grass hay, and 4 different samples of wheat straws, lentil straw, corn silage and sorghum silage were used in the experiment. DM digestibilities were 51.53% for alfalfa hay, 47.79% for sainfoin hay, 41.02% for grass hay, 30.15% for wheat straw, 47.81% for lentil straw, 63.74% …