Chitosan and cottonseed processing method association on carcass traits and meat quality of feedlot lambs

Abstract

The objective of this study was to evaluate the effects of the association of cottonseed processing method with chitosan on carcass traits and meat quality of lambs finished in feedlot. Eighty lambs with an average body weight of 20.6 kg, with 04 months of age, were distributed in a completely randomized design, in a 2 x 2 factorial arrangement. The factors were represented by two cottonseed processing method (whole or ground) and two levels of chitosan (0 and 136 mg/kg BW). The association of cottonseed processing method with chitosan in the lamb diet did not affect (P>0.05) carcasses traits. The pH, color, cooking losses, shear force, and proximate composition of meat were also not affected (P>0.05) by the processing method of cottonseed or its association with chitosan in the lamb diets. There was an increase in palmitoleic (c9-C16:1; P = 0.01) and conjugated linoleic (P = 0.02) fatty acids when ground cottonseed was associated with chitosan. Ground cottonseed associated with chitosan increases the concentration of unsaturated fatty acids in the meat of feedlot lambs.

Effect of Feeding Frequency on Intake, Digestibility, Ingestive Behavior, Performance, Carcass Characteristics, and Meat Quality of Male Feedlot Lambs

“…Several factors can affect feed intake, including the level or source of dietary fat [1,3], the use or not of by-products [37][38][39][40], the proportion of concentrate [41], and the diet supply strategy [9].…”

Effect of mineral-phytobiotic supplement on mass growth and meat productivity of crossbred sheep

“…Вівці цих порід добре трансформують корм у м'ясну і вовнову продукцію, мають високу скороспілість. Здатність овець цих порід швидко рости в ранньому віці широко використовується для одержання ягнятини (молода баранина), що позитивно впливає на економічність галузі в загалом (Geesink & Koohmaraie, 1999;Hadjipavlou et al, 2006;Cloete et al, 2012;Gökdal et al, 2012;Brown et al, 2018;da Silva Magalhães et al, 2020;Gurgeira et al, 2022;Talebi et al, 2022).…”

Marine by-products and insects as a potential chitosan source for ruminant feed additives

“…Chitosan, at 225 mg/kg body weight (0.02% BW), acts as a natural alternative modulator of ruminal fermentation, increasing ruminal propionate concentration, nitrogen utilization efficiency, and milk output in dairy cows (de Paiva et al 2016). Because chitosan selectively binds to certain chemical molecules such as cholesterol, proteins, fats, and triglycerides, making them inaccessible and hence altering their absorption, the addition of chitosan caused a decrease in meat fat content in feedlot lambs fed ground cotton seed and chitosan (da Silva Magalhaes et al 2020). The activity of glycogenolysis and glycolysis is reduced by irradiated chitosan, while the biochemical conditions of liver cells improve (reducing glutamate oxaloacetate transaminase, glutamate pyruvate transaminase, creatinine, creatinine kinase).…”