1,721,042 research outputs found
La produzione di latte di asina in una innovativa filiera latte per consumatori di fascia sensibile
No full textIl latte di asina ha destato negli ultimi anni un notevole interesse scientifico in quanto è risultato ben
tollerato da bambini affetti da allergia alle proteine del latte vaccino ed il suo uso può essere indicato
per la prevenzione dell’aterosclerosi. Il presente articolo riassume i risultati scientifici pubblicati in letteratura
circa la produzione e le caratteristiche di composizione del latte di asina, evidenziando le similitudini
e le differenze rispetto al latte umano e vaccino, anche da un punto di vista igienicosanitario.
Il latte, alimento di elezione per la crescita neonatale, non è solo una fonte di antigeni alimentari
ma è anche vettore di componenti nutraceutiche. Tra queste, nel latte di asina sono stati determinati
alcuni peptidi dotati di attività umano simile, di notevole interesse scientifico. Nel richiamare
l’importanza della nutrizione per i suoi effetti sulla produzione di latte e sullo stato di benessere
delle asine, il presente articolo esamina alcune caratteristiche dietetiche di fondamentale importanza
per il monogastrico erbivoro. La diffusione, attualmente in corso, dell’allevamento asinino per la produzione
di latte da destinare a lattanti, anziani o soggetti allergici può contribuire alla rivitalizzazione
di microeconomie nelle aree marginali e collinari, con positivi risvolti in termini di salvaguardia del
territorio e della biodiversità animale
Colture di lievito (Saccharomyces cerevisiae) e fermentazioni ruminali: possibili meccanismi d’azione
No full textEnvironmental impacts of a dairy cheese chain including whey feeding: An Italian case study
No full textThe dairy industry is associated with the production of wastewaters and effluents that could have a
significant environmental impact because of their pollutant characteristics. Cheese whey is an important
source of pollution that needs an appropriate treatment because of several environmental burdens.
Thanks to its nutritional value, liquid whey can be successfully recycled in animal nutrition. Following
the LCA methodology, this study aims to contribute to the literature on the environmental sustainability
of cheese production in a traditional dairy chain, based on an Italian case study and on liquid whey usage.
The environmental assessment considers both the milk and the mozzarella cheese production. Three
dairy chains and cow diets were assessed and compared: the A diet, with traditional feeding hay and no
liquid whey; the B diet, with silages but no liquid whey; the C diet, including both silages and liquid
whey. A physical allocation method was used to share the environmental burden between milk and meat
at farm level, while the environmental burden of the mozzarella cheese production was totally allocated
to curd. A sensitivity analysis based on the cereal unit allocation method was performed. A further
sensitivity analysis was performed to compare what the effect would have been considering the variability
of milk yield observed in the three diets. Results showed that raw milk production was the most
impactful phase along the considered supply chain. Compared with other dairy chains, the C chain with
liquid whey recycling did not result the lowest impacting solution at a global environmental perspective,
showing best performances on some impacts, but not on others. However, sensitivity analysis testing for
the observed yield variability showed that the C diet with whey usage could represent the best option
among the different diets
Leptin in milk and plasma of dairy asses
No full textABSTRACT - Milk and plasma leptin levels have been studied in dairy asses machine milked according to two
different routines: 20 pregnant, pluriparous asses, were divided into two groups subjected, every 28 d for 150 d, to
two consecutive milkings carried out at different intervals, i.e. 20 vs. 4 hours interval, respectively for group A and
group B. During the study, the declining total milk obtained by machine milking was unaffected by the different
milking strategies; body condition score of asses as well did not vary between the groups. Different milking intervals
did not significantly influence skimmed milk leptin content neither plasma leptin level. Moreover, we did not
find significant variation in plasma leptin neither correlation with BCS, indicating that in donkey pregnancy
inhibits the cross talk between hypothalamus and adipose tissue
Effect of dietary trace elements supplementation on thyroid hormones in blood and milk of lactating donkeys.
No full textStudio della relazione tra caratteristiche fisiche dei mangimi e prestazioni produttive di suini nell'ultima fase di accrescimento e nella fase di ingrasso
No full textCarbon footprint of intensive vs. extensive dairy farming in Gargano area
Full text linkCarbon footprint is an indicator of environmental sustainability
quantifying the greenhouse gas (GHG) emissions generated by
the individual or collective activities. Two dairy farms located in Foggia province (CaseStudy1, CS1;
CaseStudy2, CS2) both raising Mediterranean buffaloes (B) and
crossbred Italian Friesian cows (C) with different management
systems (intensive vs. extensive) were studied to investigate the
impacts of milk production. Data about herd characteristics (live
weights, mortality, fertility, production), diets composition, and
manure management of dairy buffaloes (n = 136 vs. n = 78, CS1B
and CS2B respectively) and dairy cows (n = 44 vs. n = 31, CS1C
and CS2C respectively) were collected to evaluate the GHG emissions
on a year basis according to FAO assessment model
(GLEAM-i ver 1.9, https://www.fao.org/gleam/resources/en/).
Considering the global warming potential (GWP) of buffalo farms,
the more extensive system in CS2B was found less impactful than
the intensive CS1B, showing −33.7% of total GHG emissions
(expressed as kg CO2-eq/year) and −50.8% of total CH4 (expressed
as kg CH4/year). Both feed intake (kg DM/year) and milk production
(kg/year) were lower in CS2B (−48.3% and −52.7 % respectively),
so that it resulted more impactful (+42.5%) when milk
emission intensity (kg CO2-eq/kg protein) was considered. The
total N2O emission (kg N2O/year) was +56.7% in CS2B due to the
different manure management.
Regarding the dairy cow farms, CS2C was found less impactful
in terms of both total GHG and CH4 (−21.1% and −37.5% respectively)
emissions. Feed intake and milk production were lower
in CS2C (−32.4% and −36.9% respectively), resulting the milk
emission intensity higher (+25.8%) than in CS1C. Consistently
with emissions in buffalo farms, the total N2O emission was
higher (+56.6%) in the extensive system.
Data processing suggested that GHG emissions were closely
related to feed production practices, diet composition and manure
management in the different farms. On this regard, formulating
diets that match the nutritional animal requirements, improving
feed digestibility and availability, introducing alternative protein
source or by-product, and implementing manure and animal
waste processing, could allow a more sustainable use of natural
resources, limiting the potential negative environmental impacts
while preserving farm remunerability
A spreadsheet model for the assessment of sustainable stocking rate in semiarid and subhumid regions of Southern Africa
No full text- …
