Animal feed based on forage cactus: use of viscera in traditional dishes. Production of by-products that can result in an economic return

Abstract

The study aimed to evaluate the yield of components that are not part of the carcass, edible organs, and with a commercial value of sheep finished in feedlot fed with complete ration silage based on forage cactus and different levels of inclusion of cotton cake. Thirty-two crossbred Dorper lambs with Santa Inês hairless sheep were used, with an initial age of 120 days, weighing on average 17 ± 1.5 kg. Consumption of 5% of the live weight of dry matter was established, being weighed and readjusted daily according to the leftovers of 10% to make then the calculations of the consumption of dry matter (DMC). The weight of blood, heart, digestive tract, liver, diaphragm, kidneys, respiratory system, head, paws, tail, bladder, spleen, gallbladder, skin, and total fat did not show any significant difference (P > 0.05) as a function of experimental diets. However, the maximum level tested in this study promotes an increase in the yield of edible organs, representing a potential source of income to add to the property's income.

Association of gene expression with blood metabolites and fatty acid profile in lambs

“…When comparing rations with AM and SO in relation to blood metabolites (table 3), it was observed that AM (P<0.05) increased in almost 15 mg.dL -1 the amount of glucose in blood compared to the control diet and the amount of globulin of the AM diet (4.12) increased 0.67 g.dL -1 compared to the SO (3.45), in addition, creatinine (1.09) and TGO (63.86) decreased compared to the SO diet (1.45 and 91.57, respectively); the inclusion of AM compared to SO decreased cholesterol, triglycerides, VLDL and R A/G, which could be a tendency in the modification of these variables by the inclusion of AM (P<0.10). The increase in blood glucose due to the inclusion AM reflects a greater disposition of energy, associated to a greater production of propionic acid available for muscle production, as reported by de Castro et al (2023) and Rodrigues et al (2022).…”

“…In this sense Yue et al (2016), mention that the expression of lipogenic genes is involved for the increase of fatty acid desaturation, which is associated with the increase of MUFA by SFA. An association such as glucose with the FASBP3 gene could mean a greater development of muscle tissue according to Castro et al (2023) andRodrigues et al, (2022).…”

Methane emission, intake, digestibility, performance and blood metabolites in sheep supplemented with cupuassu and tucuma cake in the eastern Amazon

“…This might have been reflected in glucose concentrations, which were higher in control diets. Another possibility is related to a probable increase in propionic acid in the rumen or glycogenic amino acids in the diet, as ruminants are neoglucogenic animals (41), and the volume of glucose in the blood is almost equivalent to the production of propionate in the rumen, which in turn is regulated by the energy source in the diet (42, 43); however, the results found are within the reference values. The increase in serum concentrations of cholesterol, triglycerides, and HDL was the result of increased lipid absorption in the intestine and increased metabolites in the bloodstream, due to the fat content of the CUP, TUC, and C80 diets.…”