Feeding behavior of feedlot lambs fed diets with different energy and protein sources

• Published in: Tropical animal health and production 2021-02, Vol.53 (1), p.158, Article 158
• Main Authors: Brant, Lara Maria Santos, de Carvalho, G. G. P., Júnior, J. E. Freitas, Pereira, F. M., Pina, D. S., Santos, S. A., Silva, S. N. S., Alba, H. D. R., Cirne, L. G. A., Araujo, M. L. G. M. L., Leite, L. C.
• Format: Article
• Language: English
• Subjects: Animal Feed - analysis; Animals; Biomedical and Life Sciences; Body weight; Chewing; Corn; Cottonseed Oil; Diet; Diet - veterinary; Dietary Fiber; Digestion; Dry matter; Energy; Energy sources; Feeding; Feeding Behavior; Feedlots; Life Sciences; Mastication; Protein sources; Proteins; Regular Articles; Rumination; Sheep; Soybeans; Vegetables; Veterinary Medicine/Veterinary Science; Zoology
• ISSN: 0049-4747; 1573-7438; 1573-7438
• DOI: 10.1007/s11250-020-02522-0

This study aimed to evaluate the effect of the replacement of ground corn by crude glycerin and soybean meal by cottonseed cake, in association or not, on feedlot lambs’ feeding behavior. Thirty-two non-castrated crossbred ½ Dorper ½ Santa Inês lambs, with an average body weight of 18.52 ± 3.24 kg (mean ± standard deviation), were distributed in a completely randomized design, into four treatments and eight replicates per treatment, in a 2 × 2 factorial scheme. Four experimental diets were tested with different sources or combinations of energy and protein ingredients in the concentrate, respectively: (1) ground corn + soybean meal; (2) ground corn and cottonseed cake; (3) crude glycerin and soybean meal; and (4) crude glycerin and cottonseed cake. The glycerin decreased dry matter (DM) and neutral detergent fiber (NDF) ( P