Determination of the Impact of Extruded Soybean Press Cake on Rearing and Health Indices of Piglets

Małgorzata Świątkiewicz (), Kinga Szczepanik, Łukasz Gala, Eugeniusz R. Grela, Kamil Witaszek (), Marcin Barszcz, Anna Tuśnio and Marcin Taciak
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Małgorzata Świątkiewicz: Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Krakowska St. 1, 32-083 Balice, Poland
Kinga Szczepanik: Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Krakowska St. 1, 32-083 Balice, Poland
Łukasz Gala: Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Krakowska St. 1, 32-083 Balice, Poland
Eugeniusz R. Grela: Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland
Kamil Witaszek: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego St. 50, 60-637 Poznań, Poland
Marcin Barszcz: Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka St. 3, 05-110 Jabłonna, Poland
Anna Tuśnio: Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka St. 3, 05-110 Jabłonna, Poland
Marcin Taciak: Division of Animal Nutrition, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego St. 8, 02-786 Warsaw, Poland

Agriculture, 2024, vol. 14, issue 11, 1-17

Abstract: The study was conducted to evaluate the alternative to imported soybean meal—extruded soybean press cake—in feeding weaning pigs. The experiment was carried out with 20 35-day-old weaned pigs weighing about 8.8 kg, divided into 2 groups (10 pigs in each) differing in the main protein source: group I—control, solvent-extraction soybean meal, group II— extruded soybean press cake. The feed mixtures were iso-protein and iso-energetic. After 35 days of feeding, the pigs were slaughtered. The samples of blood, intestinal tissue and digesta, meat, and back fat were collected for analyses. Replacement of soybean meal with extruded soybean press cake in the weaners’ diet had no statistically significant effect on growth performance and feed utilization. Histomorphometry analysis of the intestines did not indicate any harmful changes. The soybean press cake did not affect the sum of volatile fatty acids in the large intestine, but the ammonia concentration was lower in the distal colon ( p ≤ 0.05). It was found that the extruded soybean press cake in the feed significantly affected the fatty acid profile ( p ≤ 0.05) of meat and back fat, increasing the amount of PUFAs; however, no negative impact on the durability of meat and back fat during storage was noted. In conclusion, the study confirmed the possibility of completely replacing solvent-extraction soybean meal with extruded soybean press cake in the feeding of weaned pigs.

Keywords: pig feeding; extracted soybean press cake; health status; intestinal histomorphometry; large intestine metabolites; meat quality (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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