Recent advances in exploiting goat's milk: Quality, safety and production aspects

Silanikove, Nissim; Leitner, Gabriel; Merin, Uzi; Prosser, Colin G.

doi:10.1016/j.smallrumres.2009.12.033

Cited by 375 publications

(251 citation statements)

References 122 publications

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“…In addition, it interferes with lactic acid fermentation, enzymatic degradation or coagulation and promotes casein proteolysis (Signorini et al, 2008). Silanikove et al (2010) admitted that high counts of aerobic mesophilic bacteria (AMB), total coliform bacteria (TCB) and psychrophilic bacteria could be a source of transmission of foodborne diseases. Table 5 shows the distribution of physicochemical quality of mesophilic and somatic cell counts by tank type (individual or collective).…”

Section: Discussionmentioning

confidence: 99%

Raw milk quality in Northwestern Colombia

Suárez

Pomarez²,

Rodríguez

et al. 2016

Rev Colomb Cienc Pecu

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Section: Discussionmentioning

confidence: 99%

Raw milk quality in Northwestern Colombia

Suárez

Pomarez²,

Rodríguez

et al. 2016

Rev Colomb Cienc Pecu

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“…Such differences mainly regard the number of browsed species and their intake (both higher for goats than sheep and cattle) (Papachristou et al, 2005;Sanon et al, 2007;Osoro et al, 2013). Silanikove et al (2010) reported that goats can utilize, more than other ruminants, feedstuffs rich in tannins or other plant secondary metabolites (PSM) thanks to their digestive efficiency. The majority of studies dealing with goat feeding preferences were performed indoors or compared indoor and grazing conditions (e.g., hay vs grazing, concentrate and hay vs grazing) (Morand-Fehr et al, 2007;Silanikove et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Silanikove et al (2010) reported that goats can utilize, more than other ruminants, feedstuffs rich in tannins or other plant secondary metabolites (PSM) thanks to their digestive efficiency. The majority of studies dealing with goat feeding preferences were performed indoors or compared indoor and grazing conditions (e.g., hay vs grazing, concentrate and hay vs grazing) (Morand-Fehr et al, 2007;Silanikove et al, 2010). Only in the last years some research has been conducted on goat feeding behaviour in shrublands of Mediterranean regions (Ataşoğlu et al, 2009;Delgado-Pertíñez et al, 2013;Mancilla-Leytón et al, 2013) and in rangelands of Africa (Sanon et al, 2007) or America (Foroughbakhch et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Browsing ratio, species intake, and milk fatty acid composition of goats foraging on alpine open grassland and grazable forestland

Iussig

Renna

Gorlier

et al. 2015

Small Ruminant Research

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Aims of this study were to investigate diet selection of dairy goats foraging on two alpine vegetation types and to assess the related effects on milk fatty acid (FA) composition. Two enclosures laid out on an open grassland (OG) and a grazable forestland (GF) were exploited by 14 Camosciata goats. A commercial concentrate was supplemented during milking. Forty-five plots were randomly selected inside each enclosure and used to assess the species relative abundance (SRA) and phenological stage of plants, as well as goats' preferences (browsing ratio, BR) and intake (SI) for each species.Representative samples of the diet in each enclosure were built up considering the most ingested plant species and plant parts. Feed samples were analyzed for proximate, FA, and phenolic compositions.Milk samples were collected in each enclosure and analyzed for their FA profile. The enclosures showed a similar level of vegetation diversity. If compared to the GF enclosure, the OG one had higher proportion of Poaceae (81.2 vs 44.8% of SRA) and lower proportion of non-legume dicotyledons (14.6 vs 50.7% of SRA). The goats mostly selected eutrophic species in OG and forbs and woody species leaves in GF. The ingested vegetation was almost completely represented by grasses in OG (89.6% of SI), and by similar proportions of grasses and herbs and woody species in GF (54.9 and 45.1% of SI, respectively). The ingested forages from the OG and GF showed a comparable proximate composition; if compared to OG, the GF vegetation type was however richer in α-linolenic acid (ALA) and phenolic compounds (PC). Fatty acid analysis showed that GF milk had higher concentrations of ALA, total omega-3 FA, total trans-octadecadienoic acids, total conjugated linoleic acids, total trans-octadecenoic acids, and a reduced omega-6/omega-3 FA ratio than OG milk.Branched-chain FA were not significantly affected by treatment, suggesting that the activity of ruminal bacteria in the goats was not inhibited by the higher concentration of PC in GF plants. The main reason for the observed improvement of the FA profile in GF milk seems to be attributable to the FA profile rather than the concentration and composition of PC of the ingested plants. The abundance of herbs and woody species in the ingested vegetation was positively associated with the presence of nutritionally desirable FA in goat milk fat.

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“…It is an easily accessible matrix rich in a wide variety of essential nutrients such as minerals, vitamins and easily digestible proteins with balanced amino acid profiles, which are important in supporting most body functions (Drewnowski and Fulgoni, 2008;Silanikove et al, 2010). High-quality raw milk constituents are required to obtain high yields and good-quality dairy products such as yogurt and cheese (Oliveira et al, 2002;Leitner et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Lipopolysaccharide challenge of the mammary gland in cows induces nitrosative stress that impairs milk oxidative stability

Silanikove

Rauch-Cohen

Shapiro

et al. 2012

Animal

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The aim of this work was to study the effects of mastitis induced by intramammary lipopolysaccharide (LPS) challenge on milk oxidative stability, as well as to understand the underlying biochemical processes that cause such changes. LPS challenge was associated with nitric oxide burst from the surrounding mammary epithelial cells and consequently induced nitrosative stress that was induced by the formation of NO 2 d from nitrite by lactoperoxidase. This response was associated with an , 3-fold increased formation of hazardous compounds: nitrotyrosines, carbonyls and lipid peroxides. We sustained the involvement of xanthine oxidase as a major source of hydrogen peroxide. In consistent with previous findings, catalase has been shown to play a major role in modulating the nitrosative stress by oxidizing nitrite to nitrate. The current hygienic quality criteria cannot detect mixing of low-quality milk, such as milk with high somatic cells, and nitrite with high-quality milk. Thus, development of an improved quality control methodology may be important for the production of high-quality milk.Keywords: milk, cow, mastitis, NO and NO 2 d, plasmin system Implication In this study, we show that intramammary treatment with lipopolysaccharide induced nitric oxide burst that was associated with nitrosative stress that reflected the formation of hazardous compounds in milk: nitrotyrosines, carbonyls and lipid peroxides. These changes were associated with impairment in milk quality. Currently, very little is known about the presence of oxidative substances in commercial milk and their industrial and health implications. As mastitis is a prevalent problem in the dairy industry, this study stresses the importance of gaining further information on the effect of different forms of mastitis on milk composition.

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Recent advances in exploiting goat's milk: Quality, safety and production aspects

Cited by 375 publications

References 122 publications

Raw milk quality in Northwestern Colombia

Raw milk quality in Northwestern Colombia

Browsing ratio, species intake, and milk fatty acid composition of goats foraging on alpine open grassland and grazable forestland

Lipopolysaccharide challenge of the mammary gland in cows induces nitrosative stress that impairs milk oxidative stability

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