Isoquinoline alkaloids supplementation on performance and carcass traits of feedlot bulls

Asian-Australasian Journal of Animal Sciences

Guilherme Fernando Mattos Leão¹  Alex Michels²  Leandro Sâmia Lopes³  Heloisa Godoi Bertagnon⁴  Mikael Neumann⁴  Angela Maria Reck⁴  André Martins de Souza⁴  Edelmir Sílvio Stadler Júnior⁴  Leslei Caroline dos Santos⁴ 

[1] Department of Animal Sciences, Federal University of Paraná, Curitiba, 80035-050, Brazil;Department of Animal Sciences, Santa Catarina State University, Chapecó, 89.815-630, Brazil;Department of Veterinary Science, Federal University of Minas Gerais, Belo Horizonte, 31270-901, Brazil;Department of Veterinary Science, University of Midwest, Guarapuava, 85040-080, Brazil;

关键词: Alkaloids of Benzophenanthridine and Protopine;    High Energy Diet;    Dry Matter Intake;   

DOI  :  10.5713/ajas.17.0868

来源: DOAJ

【 摘 要 】

Objective Isoquinoline Alkaloids, derived from one plant (Macleaya cordata) can be an alternative when it is desired to increase performance in feedlot cattle. However, results on these nutritional additives in high energy diets in ruminants are still incipient in literature. In this context, the objective of this study was to evaluate performance and carcass traits of feedlot bulls supplemented with sanguinarine, the main alkaloid presents in Macleaya cordata in high energy density diets. Methods Thirty-two crossbred Angus-Nelore bulls with mean initial body weight of 365±10 kg and mean initial age of 11±3 months were used. The experiment lasted 119 days, with 14 days of adaptation and 105 experimental days. Experimental diet consisted of 85% whole corn grains and 15% protein-vitamin-mineral nucleus and supplied ad libitum. Treatments consisted of a control diet (CON) and a diet with sanguinarine supplementation (SAN) at a dosage of 4 g of product sufficient to provide 6 mg of sanguinarine/d. Experimental design was completely randomized. Results Dry matter intake, average daily gain and feed conversion were similar (p>0.05) between treatments. However, SAN group animals had higher carcass yield (p = 0.045) and were more efficient in the transformation of dry matter consumed in carcass gain (p = 0.046) than CON. In addition, haptoglobin, increased throughout feedlot duration meaning high challenge for the animals due to the diet, but this behavior was similar (p>0.05) between treatments. Conclusion Sanguinarine produced positive results in relation to carcass yield and could be used as an additive for bulls fed diets receiving high energy density diet.

【 授权许可】

Unknown