1,720,963 research outputs found
Sicurezza alimentare e responsabilità in campo mangimistico
No full textThe EU has stated a system
of rules to prevent food risk
and to avoid the occurrence of
sanitary crises, as recently observed
in this sector. The new
regulations on foods concern
the whole productive process:
from the efficiency of production
and prevention (Reg.
183/2005) to the traceability
and retraceability of products
(Reg. 178/2002). The principles
of Community legislation have
been granted in Italy and rules
have been harmonized with
the national normative document,
the “consumer code”
(D. Lgs. 206/2005)
I fattori antinutrizionali del favino
No full textThe interest of European breeders for Vicia Faba var. Minor is increasing in the last years. This is mostly ascribing to good nutritive value of Faba beans and to band to employment of genetically modified soy bean and its by products in organic production. But the Vicia Faba containing some antinutritional factors that can generate also severe metabolic and digestive disorders in farm animal for high levels of feeding. The aim of the present paper was to resume the structure and the synthesis pathways of this compounds and to review their biological effects. Because some of this factors are not destroyed by heating, use of faba beans are strongly depending upon animal specie and level of employment. In addition the content of some antinutritional factors, e.g. glucosides, is changeable depending by seed variety and environmental conditions so that it is not easy to define sure levels of atoxicity. This is also more difficult in poultry that are the most sensitive animals to the effect of glucosides
Effect of Variety and Agronomical Conditions on the Level of Polyphenols and Antinutritional Factors of Vicia Faba Minor
No full textThe faba bean is a legume primarily used in animal feeding as grain and, to a lesser degree, as fodder. As noted, grain, being a good source of amylacea (starch) (45–50% DM) and protein (23–30 CP%DM) of discrete biological value (Verite and Peyraud, 1988), acts as an alternative to soybean which is particularly suitable for organic breeding. Despite this, low productive yields and the presence of thermostable antinutritional factors have reduced the diffusion of this legume especially in feeding non-ruminant species. The objective of the current work was that of investigating the effect of the genotype and conditions (time and place of sowing) on the amount in polyphenols, vicine, convicine and phytates of five
varieties of faba bean (Vicia faba var. minor) that have recorded the best protein yields under Umbrian pedoclimatic conditions (Monotti et al., 2004; Mannino, 2003)
Effetto della varietà e delle condizioni colturali sul tenore in polifenoli e fattori antinutrizionali in Vicia faba minor
No full textFaba bean (Vicia faba var. minor) as a protein source for organic chickens: performance and carcass characteristics. In Press Italian Journal of Animal Science.
Full text linkThe ban of transgenic feed and synthetic amino acids in organic chicken diets has made necessary to find protein-rich feedstuffs which do not alter productive performance. The effect of the faba bean (Vicia faba var. minor) as a partial substitute for soybean on the performance and carcass traits of slow-growing chickens of both sexes reared under the organic method was assessed. The experiment was carried out in the spring and autumn; one thousand birds per season were split into 8 groups (4 groups of males and 4 groups of females, each duplicated) and fed a double phase diet: a common starter diet for 20 days and two different growing-finisher diets containing either soybean (24%; S) or faba bean (16%; F) till the end of the rearing period (120 d). Average values of final live weight, feed intake and daily weight gain were significantly affected by sex, being higher in males than in females; the diets affected performance only in the 21-60 days of age period when the F group grew less and had poorer feed efficiency compared to the S group. Successively, the compensatory growth eliminated differences in slaughter weight. Regarding carcass traits, the diet affected only the ready- to-cook carcass percentage and the carena length, both of which were higher in S birds. Faba beans could be a valuable protein source in the diet of organic chickens when used after the critical starter period
Faba bean (Vicia faba var. minor) as a protein source for organic chickens: performance and carcass characteristics.
No full textThe ban of transgenic feed and synthetic amino acids in organic chicken diets has made necessary to
find protein-rich feedstuffs which do not alter productive performance. The effect of the faba bean (Vicia faba var. minor) as a partial substitute for soybean on the performance and carcass traits of slow-growing chickens of both sexes reared under the organic method was assessed. The experiment was carried out in the spring and autumn; one thousand birds per season were split into 8 groups (4 groups of males and 4 groups of females, each duplicated) and fed a double phase diet: a common starter diet for 20 days and two different growing-finisher diets containing either soybean (24%; S) or faba bean (16%; F) till the end of the rearing period (120 d). Average values of final live weight, feed intake and daily weight gain were significantly affected by sex, being higher in males than in females; the diets affected performance only in the 21-60 days of age period when the F group grew less and had poorer feed efficiency compared to the S group. Successively, the compensatory growth eliminated differences in slaughter weight. Regarding carcass traits, the diet affected only the ready- to-cook carcass percentage and the carena length, both of which were higher in S birds. Faba beans could be a valuable protein source in the diet of organic chickens
when used after the critical starter period
Faba bean (Vicia faba var. minor) as a protein source for organic chickens: performance and carcass characteristics
No full textThe ban of transgenic feed and synthetic amino acids in organic chicken diets has made necessary to find protein-rich feedstuffs which do not alter productive performance. The effect of the faba bean (Vicia faba var. minor) as a partial substitute for soybean on the performance and carcass traits of slow-growing chickens of both sexes reared under the organic method was assessed. The experiment was carried out in the spring and autumn; one thousand birds per season were split into 8 groups (4 groups of males and 4 groups of females, each duplicated) and fed a double phase diet: a common starter diet for 20 days and two different growing-finisher diets containing either soybean (24%; S) or faba bean (16%; F) till the end of the rearing period (120 d). Average values of final live weight, feed intake and daily weight gain were significantly affected by sex, being higher in males than in females; the diets affected performance only in the 21-60 days of age period when the F group grew less and had poorer feed efficiency compared to the S group. Successively, the compensatory growth eliminated differences in slaughter weight. Regarding carcass traits, the diet affected only the ready- to-cook carcass percentage and the carena length, both of which were higher in S birds. Faba beans could be a valuable protein source in the diet of organic chickens when used after the critical starter period
Conta cellulare e stato immunitario della pecora da latte in funzione della tecnica di allevamento
No full textAtti XVIII Congresso SIPAOC. 17-20/09, Trezzo sull'Adda (MI)
Attività antiossidante e stato ossidativo delle diverse frazioni del latte ovino
No full textThe aim of the study was to define a protocol to evaluate sheep milk oxidation aspects, with special reference to its protein and hydrosolubile fraction, in order to assess such parameters in a simple and inexpensive way. Twenty milk samples from 10 Comisana ewes were fractioned and aliquoted in whole milk, skim milk, whey and deproinated whey and the antioxidant activity were evaluated. Results showed that proteins clearly acoount for most part of the antioxidant capacity and the TAC method displayed higher correlation between protein content and antioxidant capacity (r=0.89 and 0.68, respectively in skim milk and whey). Moreover, caseins had a major role in milk antioxidant barrier and such activity could not be attributed to their negligible content of available sulfhydryls. Lastly, a relevant antioxidant effect of vitamin C in the deproteinated fraction was observed.
Ricerca eseguita con finanziamento PRIN, anno 2005, protocollo n. 200507588
Evaluating the antioxidant capacity in different fraction of sheep milk.
No full textThe aim of the study was to design a protocol to evaluate sheep milk oxidation traits, both in the water soluble and the lipid soluble fractions, in order to assess such parameters in a simple and inexpensive way. Milk was fractioned as whole milk (WM), skim milk (SM), whey (W)) and deproteinated whey (DW). The antioxidant activity (TAC and AOP), available sulphydryls (SH), ascorbic acid (AA) and cholesterol content were determined, and the degree of antioxidant protection (DAP) of cholesterol was calculated. It was shown that current analytical methods should not be directly applied to milk, due to turbidity and peculiar pH behaviour of caseins. Therefore, samples may need some preparative steps before analysis. Proteins were found to account for most part of milk antioxidant capacity, with caseins playing the major role in milk antioxidant barrier. Such activity could not be attributed to available sulfhydryls (i.e. cysteine residues), suggesting a relevant contribution of other amino acids. The TAC method could be successfully applied for an overall estimation of both water and lipid soluble antioxidant activity of milk. However, peculiar classes of antioxidants, that are present at low concentrations, such as SH groups and AA may need more specific analytical techniques.
Sheep milk (antioxidant capacity
- …
