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In a study using three replicates, Marzolina goat cheese made with artisanal rennet paste from goat kid was compared with cheese made with commercial liquid rennet from calf. Samples of fresh cheese were subjected to chemical and microbiological analyses. Samples of ripened cheese collected after 50 days of ripening were submitted to chemical and sensory analysis. Results of this study show that cheese made with artisanal rennet pastes did not contain pathogenic microorganisms and that this kind of rennet provided the enzymatic content necessary to achieve the typical characteristics of traditional cheeses.

The aim of this study was to evaluate the effects of two different diets on fertility rate in 64 Mediterranean buffalo cows. The animals were divided in two groups: Group S (n=32) received a total mixed ration based on haysilage of Italian ryegrass (Lolium multiflorum), hay and concentrates, whereas group H (n=32) was fed only hay and concentrates. Both diets consisted of 50-55 % forages and 45-50 % concentrates and contained 0.91 MFU/kg dry matter (DM) and 16% crude protein/DM. From February until September the cows were located together with bulls and pregnancy diagnosis was performed monthly. Furthermore, blood and milk samples were monthly collected on 20 animals in each group. Statistical analysis was performed by χ2 and t Student tests. A higher fertility rate was recorded in group H vs. group S (100 vs. 78.1%, respectively; P

Sixteen pluriparous lactating buffaloes were divided in two groups homogeneous for parity, lactation stage, milk yield and weight. The diets assigned to two groups, based on maize silage (M group) and sorghum silage (S group), had the same energy-protein level (0.90 Milk FU/kg DM and 155 g/kg DM of crude protein). Five records of milk yield and quality during lactation were carried out. The physical-chemical characteristics (pH, fat, protein, lactose and urea), somatic cell count, coagulation properties and nutritional parameters (cholesterol, alfa tocopherol, 13 cis and trans retinol and 13 cis/trans retinol ratio) were analysed. Statistical analysis was performed using a factorial model. The average daily milk yield during experimental period was similar: 9.29 and 9.55 kg respectively in M and S groups. Fat and protein content were not different, while the urea content was significantly different varying from 39.13 mg/dl in M group to 45.55 mg/dl in S group. The coagulation properties, the estimated Mozzarella yield, somatic cell count and the nutritional parameters analysed were not different between the two groups. These results indicate that the sorghum silage diet utilised did not affect the milk yield and quality, then it could be adopted in lactating buffaloes.