Cottonseed meal is a protein-rich ingredient that would probably substitute conventional animal protein dietary supplements, however its use is restricted attributable to anti-nutritional elements like free gossypol.
Goal: This examine examined a cottonseed protein isolate made out of cottonseed meal by way of alkaline extraction and acid precipitation, to see if it improves vitamin and intestine well being in rising pigs.
Strategies: The experiment used a totally randomized design with 32 castrated male Duroc-Landrace-Yorkshire pigs (preliminary weight 19 ± 2 kg). They had been randomly assigned to 4 weight-reduction plan teams, every with 8 pigs: a nitrogen-free weight-reduction plan, a normal corn–soybean meal weight-reduction plan, a cottonseed meal weight-reduction plan the place cottonseed meal changed 35% of the nitrogen within the corn-soybean meal weight-reduction plan, and a cottonseed protein isolate weight-reduction plan the place cottonseed protein isolate changed 35% of the nitrogen within the corn-soybean meal weight-reduction plan. Researchers measured common every day acquire, common every day feed consumption, and the gain-to-feed ratio to guage efficiency. The examine was carried out over 14 days the place pigs had been individually housed in metabolic cages to intently monitor consumption and outputs. For the digestion and metabolism part, feed consumption was managed and set at every pig’s common pre-feeding consumption to permit exact measurement of nutrient digestibility and metabolism underneath regular feeding situations.
Outcomes: Pigs fed with cottonseed protein isolate improved the gain-to-feed ratio by about 8% in comparison with cottonseed meal-fed piglets and elevated crude protein digestibility by over 10%. It considerably enhanced obvious ileal digestibility and standardized ileal digestibility of amino acids like arginine, aspartic acid, glutamic acid, and serine by as much as 15%. Cottonseed protein isolate feeding additionally elevated villus top and villus-to-crypt ratio within the duodenum and jejunum and boosted digestive enzyme actions (maltase, α-amylase, and sucrose) within the small gut. The cottonseed protein isolate weight-reduction plan additionally elevated short-chain fatty acid ranges within the cecum and colon and elevated the relative abundances of Lactobacillus ranges within the colon in comparison with cottonseed meal. Progress efficiency and serum biochemical parameters had been like these on a normal corn-soybean weight-reduction plan.
Conclusion: Total, cottonseed protein isolate not solely had higher dietary high quality than cottonseed meal but additionally supported development and intestine well being, making it a promising various to frequent protein sources like soybean meal.
Wang Ok, Ren Ok, Luo Y, Zheng P, Mao X, Yan H, Wang Q, He J. Improved high quality of cottonseed meal: impact of cottonseed protein isolate on development efficiency, nutrient digestibility, and intestinal well being in rising pigs. Journal of Animal Science. 2025; 103:skaf057.
https://doi.org/10.1093/jas/skaf057
