1,720,962 research outputs found
Effetti del periodo di frollatura delle carcasse di agnelloni sulla tenerezza finale della carne
No full textDifferent expression of AQP5 in sheep salivary glands related to forage water content during two vegetative cycles.
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Ca, Mg, Zn, Fe, Cu and Mn content of ass’s milk
No full textAbstract - The aim of this study was to determine Ca, Mg, Zn, Fe, Cu and Mn content of ass’s milk. Twenty four individual milk samples were collected from 4 lactating asses. During the experimental period milk samples were collected every 3 weeks interval, using a milking machine; asses were housed with the foals that were separated from the jennets 3 hours before milking. Milk was analysed for Ca, Mg, Zn, Fe, Cu and Mn content by atomic absorption spectrometry. The concentration mean (±SD) of Ca Mg, Zn, Fe, and Cu were respectively 334.61±39.80, 58.46±8.43, 1.99±0.51, 1.15±0.52, 0.16±0.06 mg/kg. Mn was found only at trace level. Iron content of ass’s milk was the most variable ranging from 0.43 to 1.88 mg/kg. Correlation coefficients were positive and significant between Ca and Mg (r=0.63), Zn and Mg (r=0.45), Zn and Fe (r=0.49) and Zn and Cu (r=0.50). In this study, except for Fe, mean concentration of Ca, Mg, Zn, and Cu in ass’s milk was similar to those reported in literature for human milk
Effetti del differente periodo di frollatura delle carcasse di agnelloni sulla tenerezza della carne.
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Wool quality in Gentile di Puglia sheep breed as measure of genetic integrity
No full textThe Gentile di Puglia is a breed created in the 15th century by crossing Merino Spanish rams and “gentile” ewes reared in some areas of Southern Italy, mainly Apulia and Basilicata. The crisis of the wool industry, the poor quantity of milk, the inadequacy of Gentile di Puglia to be milked by machine and the passage from
transhumant to permanent rearing caused a dramatic reduction of this population, which was largely crossed with other breeds and declined from about one million heads in the sixties to 5,000 at the present time. In order to save the ancient typical Gentile di Puglia breed, the aim of this work was to estimate the “genetic
integrity” of the remaining Gentile di Puglia population by means of an analysis of wool quality measured through the diameter of the fibre and the homogeneity of the fleece. Our hypothesis was that the animals originated from outcrosses to other Merino derived breeds specialised for meat would show larger diameters
of the fibres and a reduced homogeneity of the fleece. The research was carried out using Herd Book registered
animals from 9 farms: 1 from Isernia, 2 from Campobasso and 6 from Foggia province. The statistical analysis on the diameter of the fibre was carried out on a dataset of 38,200 observations (200 records x 191 animals) divided in four classes (ultrafine, fine, croisè, ordinary).
The high frequencies of ultrafine and fine fibre classes show that the quality of the wool is still good in the population. This consideration can be extended to all the farms involved in the study that could therefore be suitable in the conservation programs for this breed. The homogeneity of the fleece was also good in providing further evidence of the genetic integrity of the population. Other analysis carried out on the quality of the
wool in relation to the body size confirmed that the observed Gentile di Puglia is well representative of the ancient breed
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