RESUMO
1. Eggs from 4 farmed populations of Lesser Rhea (Pterocnemia pennata) were studied to determine their physical and chemical characteristics. 2. None of the physical variables (weight of whole egg, yolk, albumen and shell; proportion of yolk based on egg content; proportion of shell based on entire egg weight; volume; density) showed significant differences between populations. 3. Among chemical variables, moisture, both saturated fatty acids (palmitic 16:0 and stearic 18:0), one monounsaturated fatty acid (palmitoleic 16:1), and one polyunsaturated fatty acid (arachidonic 20:4), did not differ between populations, whereas other variables (protein, lipid and ash contents; fatty acids: oleic 18:1, linoleic 18:2, linolenic 18:3; PUFA; PUFA/SFA; cholesterol) differed significantly.
Assuntos
Ovos/análise , Reiformes/fisiologia , Animais , Animais Domésticos , Argentina , Gema de Ovo/química , Ácidos Graxos/análise , Ácidos Graxos Insaturados/análise , Feminino , Ovalbumina/análise , Oviposição , Reiformes/classificação , Especificidade da EspécieRESUMO
1. Eggs from wild and captive populations of Greater Rhea (Rhea americana) were studied to determine their physical and chemical characteristics. 2. Significant differences were found among populations in almost all chemical parameters studied, whereas within physical parameters only shell weight (as a proportion of the entire egg) and density showed differences. 3. Eggs from wild populations had the highest protein and linolenic acid and the lowest total lipid contents, while cholesterol levels of these eggs and of those from the largest captive area were the lowest.
Assuntos
Ovos/análise , Reiformes/fisiologia , Animais , Animais Domésticos , Animais Selvagens , Colesterol/análise , Proteínas do Ovo/análise , Casca de Ovo/química , Ovos/normas , Lipídeos/análiseRESUMO
Essential oils obtained from the inflorescences of ACHYROCLINE SATUREIOIDES (Lam.) DC, ACHYROCLINE ALATA (HBK) DC and ACHYROCLINE TOMENTOSA Rusby, collected from central Argentina, were analyzed by GC and GC/MS. Fifty-two compounds representing 93-98% of the oils were identified. Caryophyllene was the most abundant component in all oils studied (39-48%).
