Samuels W A, Fontenot J P, Allen V G, Abazinge M D
Dept. of Anim. Sci., Virginia Polytechnic Institute and State University, Blacksburg 24061.
J Anim Sci. 1991 Dec;69(12):4983-92. doi: 10.2527/1991.69124983x.
Ensiled mixtures of seafood processing wastes and wheat straw were evaluated. Thirty-six crossbred wethers (average BW = 34 kg) were fed 1) a basal diet (hay and concentrate) alone, or a 1:1 ratio (DM basis) of basal and 2) ensiled fish waste plus straw (70:30, wet basis), 3) ensiled fish waste and straw (51:49), 4) ensiled crab waste plus straw (60:40), 5) ensiled crab waste plus straw (40:60), or 6) ensiled wheat straw (50% moisture). Dry molasses (5%) was included in all ensiled mixtures, and glacial acetic acid (16% vol/wt) was added to the crab waste mixtures. Among diets containing ensiled fish waste, DM digestibility was greater (P less than .01) for the diet containing silate with 70% fish waste than the diet containing 51% fish waste. There was no difference (P greater than .05) in DM digestibility between the two crab waste silages. Apparent digestibility of CP was greater (P less than .01) for diets containing fish than for those containing crab waste. Nitrogen retention (g/d) was positive for sheep receiving all diets but not different among treatments. Apparent absorption of P (g/d) was greater (P less than .01) by sheep fed fish waste silage diets than by those fed crab waste silage diets. Among seafood silages, DMI was greater (P less than .01) for sheep consuming the 60:40 than for those consuming the 40:60 crab waste silage diet and less (P less than .01) for sheep fed the 70:30 than for those fed the 51:49 fish waste silage diet. Seafood processing wastes potentially are valuable to ensile with crop residues for use as ruminant feedstuffs.
对海鲜加工废弃物与小麦秸秆的青贮混合物进行了评估。选用36头杂交阉羊（平均体重=34千克），分别饲喂：1）仅基础日粮（干草和精料），或基础日粮与2）青贮鱼废弃物加秸秆（湿基比例70:30）、3）青贮鱼废弃物与秸秆（51:49）、4）青贮蟹废弃物加秸秆（60:40）、5）青贮蟹废弃物加秸秆（40:60）、6）青贮小麦秸秆（含水量50%）按1:1比例（干物质基础）混合的日粮。所有青贮混合物中均添加5%的干糖蜜，蟹废弃物混合物中添加冰醋酸（体积/重量比16%）。在含有青贮鱼废弃物的日粮中，含70%鱼废弃物的硅酸盐日粮的干物质消化率高于含51%鱼废弃物的日粮（P<0.01）。两种蟹废弃物青贮料的干物质消化率无差异（P>0.05）。含鱼日粮的粗蛋白表观消化率高于含蟹废弃物日粮（P<0.01）。所有日粮组绵羊的氮保留量（克/天）均为正值，但各处理间无差异。饲喂鱼废弃物青贮日粮的绵羊的磷表观吸收量（克/天）高于饲喂蟹废弃物青贮日粮的绵羊（P<0.01）。在海鲜青贮料中，采食60:40蟹废弃物青贮日粮的绵羊的干物质采食量高于采食40:60蟹废弃物青贮日粮的绵羊（P<0.01），而饲喂70:30鱼废弃物青贮日粮的绵羊的干物质采食量低于饲喂51:49鱼废弃物青贮日粮的绵羊（P<0.01）。海鲜加工废弃物与作物残渣青贮用作反刍动物饲料原料具有潜在价值。
