title: Comparison of spray-dried egg and albumen powder with conventional animal protein sources as feed ingredients in diets fed to weaned pigs.
abstract: We evaluated the apparent (AID) and standardized ileal digestibility (SID) of amino acids (AA) in spray-dried egg (SPE) and albumen powder (AP) compared with spray-dried porcine plasma (SDPP), dried porcine solubles (DPS) and fish meal (FM). Additionally, the effects of these egg byproducts as a replacement for conventional animal proteins on the performance and nutrient digestibility of piglets were studied. In Exp. 1, six barrows fitted with ileal T-cannulas were allotted to a 6 × 6 Latin Square design and fed six diets. The AID and SID of AA were generally higher in AP and FM (P < 0.01) than in the other protein sources. In Exp. 2, 150 piglets weaned at 21 days, were fed diets containing the five protein sources for 3 weeks. Weight gain of piglets fed SDPP was the highest among the treatments. Dry matter and protein digestibility for pigs offered SDPP were higher (P < 0.01) than those offered FM and DPS. AP decreased (P < 0.05) Escherichia coli counts in the cecum. DPS decreased (P < 0.05) serum diamine oxidase compared with SPE. In conclusion, AP and SPE are competitive with traditional animal protein sources and can be successfully fed to piglets without compromising performance.
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Sai
authors.initials: S
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Xiangshu
authors.initials: X
authors.lastname: Piao
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Xiaokang
authors.initials: X
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Zhikai
authors.initials: Z
authors.lastname: Zeng
authors.affiliation: State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing, China.
authors.forename: Qiyu
authors.initials: Q
authors.lastname: Tian
authors.affiliation: Shendi Company, Jingmen, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Li
mesh_terms: D000418:Albumins / Q000008:administration & dosage*; D006631:Amine Oxidase (Copper-Containing) / Q000097:blood; D000596:Amino Acids / Q000008:administration & dosage; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D058491:Bacterial Load; D002432:Cecum / Q000382:microbiology; D004044:Dietary Proteins / Q000008:administration & dosage*; D004063:Digestion; D004531:Eggs; D004926:Escherichia coli; D005396:Fish Products; D005511:Food Handling; D008297:Male; D010949:Plasma; D011208:Powders; D013552:Swine / Q000254:growth & development / Q000502:physiology*
chemical_list: D000418:Albumins; D000596:Amino Acids; D004044:Dietary Proteins; D011208:Powders; D006631:Amine Oxidase (Copper-Containing)
keywords: amino acid; digestibility; egg; performance; pig