Condensed porcine solubles (CPS) was a suitable source of energy and protein when fed at 5% of the diet as a partial replacement of corn and soybean meal. Therefore, its use in growing-finishing diets should be based on relative ingredient costs and convenience of incorporation of a liquid material at the mixer

Zimmerman, Dean R.

English

Condensed porcine solubles (CPS) was a suitable source of energy and protein when fed at 5% of the diet as a partial replacement of corn and soybean meal. Therefore, its use in growing-finishing diets should be based on relative ingredient costs and convenience of incorporation of a liquid material at the mixer.</p

Zimmerman, Dean

Digital Repository @ Iowa State University (ISU)

Iowa State University NutritionCondensed Porcine Solubles in Diets Fed toGrowing-Finishing PigsDean Zimmerman, professor,Department of Animal ScienceASL-1481Summary and ImplicationsCondensed porcine solubles (CPS) was a suitablesource of energy and protein when fed at 5% of the diet as apartial replacement of corn and soybean meal. Therefore, itsuse in growing-finishing diets should be based on relativeingredient costs and convenience of incorporation of a liquidmaterial at the mixer.IntroductionCondensed porcine solubles (CPS) is a byproduct of theseparation of heparin from hydrolyzed small intestines ofpigs. The product contains 45% dry matter, 21% crudeprotein, and 5% crude fat. The protein is largely in the formof individual amino acids, and these amino acids are wellbalanced in relation to the pigÕs amino acid needs. Ourinterest was to determine its feeding value as a source ofprotein and energy for growing-finishing pigs.Materials and MethodsThe treatments compared were: (1) corn-soybean mealcontrol diets and (2) diets in which 5% CPS partiallyreplaced corn and soybean meal. The diets containing CPSwere formulated with lower as-fed densities for the nutrients(energy, lysine, calcium, and phosphorus). On a dry matterbasis, however, nutrient densities of diets were similar. Thepigs were phase-fed diets in periods representingapproximate body weight ranges from 50 to 80, 80 to 120,120 to 180, and 180 to 240 lb. Diet formulas and calculatedanalyses are presented in Table 1.The experiment was designed as a randomized completeblock with two treatment regimes and seven blocks. Eachblock contained two contiguous pens; each pen containedsix pigs. Body weight and feed intake data were recordedevery other week in the growing-finishing period lasting 16weeks. PigsÕ initial and final average body weights were 51and 242 lb, respectively.Results and DiscussionTreatment averages for daily gain (ADG), daily feedintake (ADFI), and gain/feed ratio (G/F) are presented foreach two-week period and for the total grower-finisherperiod.The ADG and ADFI did not differ between treatmentgroups in any period. In some two-week periods and for thetotal experiment, however, pigs feed the control diets hadgreater G/F ratios than did the pigs fed diets containingCPS. These treatment differences were caused by thedilution effect of the moisture content of the CPS. Whenfeed efficiencies for the entire 16-week period were expressedas megacalories of energy consumed per pound of bodyweight gain, treatment averages were almost identical (4.41Mcal/lb for control pigs and 4.37 Mcal/lb for pigs fed CPS.During periods 5 and 6, all pigs experienced respiratorydistress with considerable coughing. This disease causeddepression in average growth performance over a  period ofapproximately four weeks.When CPS was incorporated into the diet at 5% of themixture, we experienced no feed spoilage. The experimentwas conducted from March through June of 1997. Dietscontaining 5% CPS had favorable handling characteristics.They did not ÒbridgeÓ in self-feeders, and there was lessdust produced by these diets than by the control diets.Table 2. Summary of effect of condensed porcinesolubles on pig performance.TreatmentsItem Perioda Control 5% CPS CV, % P<ADG, lb 1 1.11 1.06 15.1 .582 1.80 1.79 7.7 .903 2.00 1.96 3.8 .394 1.94 1.78 11.3 .215 1.57 1.70 10.8 .226 1.34 1.25 13.8 .397 2.03 2.00 9.2 .768 1.99 1.98 8.0 .89Total 1.72 1.69 4.7 .48ADFI, lb 1 2.63 2.65 9.8 .882 4.04 3.97 7.4 .693 4.85 4.99 4.2 .264 5.41 5.28 8.0 .595 5.35 5.53 7.4 .436 4.78 4.56 7.6 .297 6.20 6.35 4.5 .368 6.63 6.70 7.6 .82Total 4.97 5.00 4.9 .86G/F 1 .420 .398 5.9 .142 .447 .453 5.6 .703 .413 .394 4.7 .104 .358 .338 4.5 .055 .292 .306 5.2 .146 .281 .274 8.3 .617 .326 .315 8.4 .478 .300 .295 5.4 .59Total .347 .339 1.5 .03aThe duration of periods was 2 weeks, and the total periodwas 16 weeks.Iowa State University NutritionTable 1. Diet composition.Control 5% CPSItem 50Ð80 80Ð120 120Ð180 180Ð240 50Ð80 80Ð120 120Ð180 180Ð240Ingredients, %Corn 74.54 78.46 83.65 87.44 72.30 76.30 81.39 85.17Soybean meal 21.60 18.10 12.90 9.40 18.90 15.30 10.20 6.70Animal fat 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00CPS 5.00 5.00 5.00 5.00Dicalcium PO4 1.35 .90 .98 .78 1.29 .85 .95 .77CaCO3 .83 .86 .84 .85 .83 .85 .83 .83NaCl .25 .25 .25 .25 .25 .25 .25 .25Vitamin premix .20 .20 .20 .10 .20 .20 .20 .10Lysine×HCl .13 .13 .13 .13 .13 .13 .13 .13Trace mineral premix .05 .05 .025 .025 .05 .05 .025 .025Tylan-40 .05 .05 .05 .05BMD-60 .025 .025 .025 .025Calculated analysis:ME, kcal/lb 1523 1530 1531 1536 1476 1482 1483 1488Lysine, % .95 .85 .70 .60 .93 .82 .68 .58Calcium, % .70 .60 .60 .55 .68 .58 .58 .53Phosphorus, % .60 .50 .50 .45 .58 .48 .48 .44Dry matter, % 88.83 88.77 88.67 88.57 86.68 86.54 86.46 86.36

Condensed Porcine Solubles in Diets Fed to Growing-Finishing Pigs

https://dr.lib.iastate.edu/handle/20.500.12876/91094

Condensed Porcine Solubles in Diets Fed to Growing-Finishing Pigs

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