Ruminal responses, digestibility, and blood parameters of beef cattle fed diets with different oilseeds

• Published in: Tropical animal health and production Vol. 55; no. 4; p. 254
• Main Authors: Niwa, Marcus Vinicius Garcia, Ítavo, Luís Carlos Vinhas, Ítavo, Camila Celeste Brandão Ferreira, Mateus, Rodrigo Gonçalves, da Costa Gomes, Rodrigo, de Melo, Hilda Silva Araújo, Nonato, Lucimara Modesto, de Moraes, Gabriella Jorgetti, de Aquino Monteiro, Gabriela Oliveira, Gurgel, Antonio Leandro Chaves, dos Santos, Geraldo Tadeu
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-08-2023; Springer Nature B.V
• Subjects: Ammonia; Animals; Asteraceae; Beef cattle; Biomedical and Life Sciences; Blood; Brassica napus; Canola; Cattle; Cholesterol; Corn; Corn silage; Cotton; Cottonseed Oil; Diet; Diet - veterinary; Dietary Fiber; Digestibility; Dry matter; Eating; Energy Intake; Fatty acids; Food intake; Gossypium; Helianthus; Latin square design; Life Sciences; Lipids; Oilseeds; Parameters; Regular Articles; Roughage; Rumination; Seeds; Silage; Soybeans; Sunflowers; Urea; Veterinary Medicine/Veterinary Science; Zoology; Cottonseed; Canola; Soybean; Sunflower; Rumen fermentation
• ISSN: 0049-4747; 1573-7438
• DOI: 10.1007/s11250-023-03682-5

It aimed to evaluate the effects of different whole oilseeds in lipid-rich diets on nutrient intake, apparent digestibility, ingestive behavior, and ruminal and blood parameters of steers. A control diet (without oilseed) and four diets containing whole oilseeds (cotton, canola, sunflower, and soybean) were tested. All diets used the whole-plant corn silage at 400 g/kg as roughage. Five diets, being a control diet (without oilseed) and four diets containing whole oilseeds (cotton, canola, sunflower, and soybean), were tested. All diets used the whole-plant corn silage at 400 g/kg as roughage. Five rumen fistulated crossbreed steers, in a 5 × 5 Latin square design were distributed using five periods of 21 days. The steers fed cottonseed and canola diets had lower dry matter intakes (6.6 kg/day). Steers showed higher averages of time in rumination for treatments with sunflower, soybean, and cottonseed (406, 362, and 361 min/day, respectively). There was no treatment effect for the ruminal pH and ammonia (NH
3
) variables. There was an effect of the treatment on the volatile fatty acid concentrations. The animals that received soybean showed a higher plasma urea concentration (50.7 mg/dL). Animals fed the control diet showed lower serum cholesterol levels (111.8 mg/dL) than those fed diets containing whole cottonseed, canola, sunflower, and soybean (152.7, 137.1, 146.9, and 138.2 mg/dL, respectively). We recommended using whole soybean or sunflower seeds to formulate lipid-rich diets with 70 g/kg of ether extract for crossbreed steers in the feedlot.