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Polish Red (PR) is the native Polish cattle breed included in the FAO National Rare Livestock Breeds Preservation Programme. The breed is characterized by high vitality and fertility, calving ease, resistance to diseases, and low requirements for feed. Milk yield is low, but fat and protein content of milk are high. The frequencies of alleles of commonly studied loci as well as the presence of new...
The cholesterol content differed (P<0.05) between breast (49.5 mg/100 g) and back (74.3 mg/100 g) fat. Differences (P<0.05) in individual fatty acids were found especially for arachidonic acid (20:4).High contents of 18:2, 18:3 and 20:4 from both depots suggest, that ostrich fat could be a source of essential fatty acids in human and animal diets. The influence of various factors and especially...
The mean lipid and cholesterol contents of m. gastrocnemius were 3.87 g and 75 mg/100 g tissue, respectively. The overall profile of fatty acids of the muscle was found similar to ostrich meat. From dietetic and nutritive point of view fatty acids profile of nandu meat seems more desirable than those of the traditional avian species.
Culled breeding ostriches weighing 130-160 kg yield about 25 kg fat tissue that could possibly be used for supplementing human and animal diet. Cholesterol content of breast fat – 80 mg/100 g tissue – from the breeding ostrich females (n = 6) culled and slaughtered at the age of five years appeared similar to that reported of beef and lamb adipose tissue. In a sum of 17 fatty acids (FA) determined,...
In nandu eggs (n = 9) the mean cholesterol content of yolk was 16.41 mg/g. In a sum of 21 fatty AIDS determined, the considerable share – 33.55% – of polyunsaturated acids was found, and especially of linolenic (C18:3) – 4.95% and arachidonic (C20:4) – 7.59%, both considered essential in human nutrition. It is concluded that nandu eggs are of considerable dietetic value.
Celem doświadczenia było oznaczenie różnic w zawartości Ca, Mg, K, Na, Fe, Cu i Zn w osoczu krwi i w wełnie owiec rasy Booroola i merynos polski. Badania przeprowadzono na 8 maciorkach rasy merynos polski i 9 maciorkach rasy Booroola. Analizy zawartości biopierwiastków obejmowały następujące okresy: przed stanówką, wczesna ciąża, późna ciąża i laktacja. Różnice zawartości badanych składników mineralnych...
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