Holzgraefe D P, Fahey G C, Jensen A H, Berger L L
J Anim Sci. 1985 May;60(5):1247-59. doi: 10.2527/jas1985.6051247x.
Twenty-four third- and fourth-parity crossbred gravid sows were housed in metabolism stalls and randomly allotted to four dietary treatments: corn-alfalfa:orchardgrass hay (46%; CH), CH plus lasalocid (CHL), corn-soybean meal (CS) or CS plus lasalocid (CSL). Daily feed intake was 2.36 kg for CH- and CHL-fed sows and 1.66 kg for CS- and CSL-fed sows. Lasalocid intake was 110 mg X sow-1 X d-1. Total feces and urine were collected during two 5-d collection periods, 40 and 80 d postcoitum. Digestible energy (DE), metabolizable energy (ME), nitrogen (N) retention, dry matter (DM), neutral detergent fiber (NDF) and acid detergent fiber (ADF) digestibilities, and retention of calcium (Ca), total phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) were determined. Percentage DE and ME were greater (P less than .0001) for CS- and CSL-fed sows (88.3 and 83.4%) than for CH- and CHL-fed sows (65.2 and 61.3%). Lasalocid did not influence (P greater than .05) DE and ME values but decreased (P less than .01) the ME:DE ratio. Percentage N digestibility was greater (P less than .0001) for CS- and CSL-fed sows (85.7%) than for CH- and CHL-fed sows (60.8%), but there was no significant difference in N retention, expressed as a percentage of N intake. Lasalocid increased (P less than .03) percentage N digestibility; however, the diet X additive interaction decreased (P less than .005) grams N retained X sow-1 X d-1 for CSL-fed sows. The CH- and CHL-fed sows digested more grams of DM, NDF and ADF but had lower percentage digestibilities of DM and fiber fractions than did CS- and CSL-fed sows. The diet X additive interaction decreased (P less than .05) percentages of Ca, P and K digested and decreased (P less than .05) grams mineral retained (Ca, P, Mg and K) and mineral retained expressed as a percentage of intake for CSL-fed sows. Results indicate that alfalfa:orchardgrass hay and lasalocid influenced energy, fiber, nitrogen and mineral utilization by gravid sows.
24头经产三胎和四胎的杂交妊娠母猪被安置在代谢栏中，并随机分配到四种日粮处理组：玉米-苜蓿：果园草干草（46%；CH）、CH加拉沙洛西（CHL）、玉米-豆粕（CS）或CS加拉沙洛西（CSL）。CH和CHL组母猪的日采食量为2.36千克，CS和CSL组母猪的日采食量为1.66千克。拉沙洛西的摄入量为110毫克×母猪-1×天-1。在妊娠后40天和80天的两个5天收集期内收集全部粪便和尿液。测定了消化能（DE）、代谢能（ME）、氮（N）存留量、干物质（DM）、中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）消化率，以及钙（Ca）、总磷（P）、镁（Mg）、钠（Na）和钾（K）的存留量。CS和CSL组母猪的DE和ME百分比（88.3%和83.4%）高于CH和CHL组母猪（65.2%和61.3%）（P<0.0001）。拉沙洛西对DE和ME值无影响（P>0.05），但降低了ME:DE比值（P<0.01）。CS和CSL组母猪的N消化率百分比（85.7%）高于CH和CHL组母猪（60.8%）（P<0.0001），但以N摄入量的百分比表示的N存留量无显著差异。拉沙洛西提高了N消化率百分比（P<0.03）；然而，日粮×添加剂互作降低了CSL组母猪每头母猪每天N存留克数（P<0.005）。CH和CHL组母猪消化的DM、NDF和ADF克数更多，但DM和纤维组分的消化率百分比低于CS和CSL组母猪。日粮×添加剂互作降低了CSL组母猪Ca、P和K的消化百分比，以及矿物质存留克数（Ca、P、Mg和K）和以摄入量百分比表示的矿物质存留量（P<0.05）。结果表明，苜蓿：果园草干草和拉沙洛西影响妊娠母猪的能量、纤维、氮和矿物质利用。
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