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http://dx.doi.org/10.5333/KGFS.2002.22.2.107

The Effects of Addition of Apple Pomace to Rice Straw Silage on Feed Intake and Digestibility of Korean Native Goats  

조익환 (대구대학교 자연자원대학)
황보순 (대구대학교 자연자원대학)
전하준 (대구대학교 자연자원대학)
안종호 (한경대학교)
이주삼 (연세대학교)
한태호 (농촌진흥청 농업생명공학연구원)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.22, no.2, 2002 , pp. 107-114 More about this Journal
Abstract
Rice straw silage added with apple pomace in different ratios were mixed with commercial concentrates and fed to Korean native goats in comparison to the corn silage mixed with the same content of commercial concentrates in whole diet as that of apple pomace added rice straw silage (rice straw : apple pomace = 100:0, 80:20, 60:40, 40:60). Dry matter intake, digestibilities of nutrients and nitrogen retention were investigated for the possibilities of application of agricultural by-products for the diets of Korean native goats. Crude protein contents of rice straw silage added with apple pomace were 6.3~7.3% and the contents of ADF, NDF and crude ash were highest in 100% rice straw mixed ratio (A) as 39.4, 61.6 and 8.9% respectively. Those were lower in corn silage (E) as 30.3, 53.4 and 4.9% respectively, however NSC content of corn silage was highest among the experimental treatments as 31.4%. Daily dry matter intakes per head and also per metabolic basal weight (DM g/kg of $BW^{0.75}$ were significantly (p<0.05) higher in D of the highest mixed ratio of apple pomace (605.3, 69.5g) than those of corn silage (E: 394.0, 46.8g). Daily live weight changes were significantly (p<0.05) higher in 40% (C: 16.7g) and 60% (D: 22.9g) apple pomace mixed ratios than 0% (A: 0.17g) and 20% (B: 4.3g) apple pomace mixed ratios. Digestibilities of dry matter and organic matter were higher in D and E than in A and B and those of ADF and NDF were higher in D as 50.2 and 57.4% respectively than the digestibilities in A, B and E. Nitrogen retention (g, %) was highest in D of the highest mixed apple pomace ratio (1.4g, 20.4%) however lowest in A (-0.3g, -7.75%).
Keywords
Rice straw silage; Apple pomace; Corn silage; Dry matter intake; Digestibility; Nitrogen retention;
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