Nutritional value of dried fermentation biomass, hydrolyzed porcine intestinal mucosa products, and fish meal fed to weanling pigs1

Abstract

Dried fermentation biomass (DFB) and hydrolyzed porcine intestinal mucosa are co-products of L-Lys • HCl production and heparin extraction, respectively. Three experiments were conducted to determine standardized ileal digestibility (SID) of AA (Exp. 1), concentration of DE and ME (Exp. 2), and standardized total tract digestibility (STTD) of P (Exp. 3) in DFB and 2 hydrolyzed porcine intestinal mucosa products (PEP50 and PEP2+), and compare these values with values for fish meal. In Exp. 1, 12 ileal cannulated barrows (BW = 11.5 ± 1.1 kg) were allotted to a replicated 6 × 6 Latin square design with 6 diets and 6 periods. A N-free diet, diet based on soybean meal (SBM), and 4 diets based on a combination of SBM and DFB, PEP50, PEP2+, or fish meal were formulated. With the exception of Lys, there were no differences in SID of indispensable AA between DFB and fish meal. Except for Thr, no differences in SID of indispensable AA between PEP50 and fish meal were observed, but SID of all indispensable AA, except Lys and Trp, was less (P < 0.05) in PEP2+ than in the other ingredients. In Exp. 2, 40 barrows (BW = 12.8 ± 1.4 kg) were allotted to 5 diets with 8 pigs/diet. A basal diet containing 96.4% corn and 4 diets containing corn and DFB, PEP50, PEP2+, or fish meal were formulated. The DE (5,445 kcal/kg DM) and ME (5,236 kcal/kg DM) in DFB were greater (P < 0.01) than in PEP50 (4,758 and 4,512 kcal/kg DM for DE and ME, respectively) and fish meal (4,227 and 3,960 kcal/kg DM for DE and ME, respectively). Also, DE in DFB was greater (P < 0.01) than in PEP2+ (4,935 kcal/kg DM), but ME in DFB was not different from that in PEP2+ (4,617 kcal/kg DM). Furthermore, DE in PEP50 and PEP2+ were greater (P < 0.01) than in fish meal, but ME did not differ from that in fish meal. In Exp. 3, 40 barrows (BW = 12.4 ± 1.3 kg) were randomly allotted to 5 diets with 8 pigs/diet. A P-free diet and 4 diets in which the sole source of P was from DFB, PEP50, PEP2+, or fish meal were formulated. The STTD of P in DFB (96.9%) and PEP2+ (97.6%) were greater (P < 0.01) than in PEP50 and fish meal (76.2% and 68.5%, respectively), and STTD of P in PEP50 was greater (P < 0.01) than in fish meal. In summary, SID of most indispensable AA did not differ among DFB, PEP50, and fish meal, but DE and ME and STTD of P in DFB were greater than in PEP50 and fish meal.

Comparison of spray‐dried egg and albumen powder with conventional animal protein sources as feed ingredients in diets fed to weaned pigs

“…Values for the AID and SID of AA in FM agree with previously measured results (Cervantes‐Pahm & Stein ; NRC ; Sulabo et al . ), and the AID or SID of AA in SDPP are in agreement with results from Schmidt et al . () and the NRC ().…”

“…Nevertheless, the AID and SID in DPS determined in this experiment were generally lower than the values reported by Sulabo et al . (), while the AID of cysteine calculated for DPS in this experiment is much greater than the reported values of Sulabo et al . ().…”

“…(), while the AID of cysteine calculated for DPS in this experiment is much greater than the reported values of Sulabo et al . (). Therefore, it is possible that the quality of DPS used in this experiment was different from that used in previous experiments, as a result of variability in mixtures of hydrolyzed intestinal mucosa combined with other ingredients, such as carriers (soybean hull).…”

“…The reduced digestibility of CP and AA in DPS compared with values calculated for FM was also observed by Sulabo et al . (). These observations may be due to trypsin and chymotrypsin inhibitors (Heugten ) and dietary fiber (Dilger et al .…”

“…Apparent (AID) or standardized ileal digestibility (SID) of AA in FM (Kim & Easter ), DPS (Sulabo et al . ), SDPP (Schmidt et al . ; Heo et al .…”