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Search Results: 1 - 10 of 42237 matches for " ruminant’s milk "
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Mare’s milk: composition and protein fraction in comparison with different milk species
Klemen Poto?nik,Vesna Gantner,Kre?imir Kuterovac,Angela Cividini
Mljekarstvo , 2011,
Abstract: The usage of the mare’s milk as functional food especial for children intolerant to cow’s milk, with neurodermitis, allergies and similar disorders desiring to improve the quality of life is fiercely debated for last decades but there were no scientific studies to suggest such use of mare’s milk based on scientific research. The objectives of this study were to determine similarities of mare’s milk in comparison with milk of ruminants (cattle, sheep and goat) and human milk in terms of milk composition and protein fraction as whey proteins, caseins and micelles size. All differences were discussed regarding usage of mare’s milk in human diet and compared to milk which is usually used in human nutrition. Regarding composition, the mare’s milk is similar to human milk in of crude protein, salt and lactose content, but it has significantly lower content of fat. Fractions of main proteins are similar between human and mare’s milk, except nitrogen casein (casein N) which has twice lower content in human than in mare’s milk. Content of casein N from all ruminants’ milk differ much more. Just for true whey N and non-protein nitrogen (NPN) similar content as human and mare’s milk has also goat milk. The casein content is the lowest in human milk; this content is three times greater in mare’s milk and six to seven times greater in goat’s and cow’s milk, while in sheep’s milk it is more than 10 times grater. In many components and fractions mare’s milk is more similar to human milk than milk of ruminants. A detail comparison of protein fraction shows quite large differences between milk of different species. More study and clinical research are needed that can recommend usage of mare’s milk in human diet as functional food on scientific bases.
Fontes protéicas e de amido com diferentes degradabilidades ruminais para alimentar vacas leiteiras
Imaizumi, Hugo;Santos, Flávio Augusto Portela;Pires, Alexandre Vaz;Juchem, Sérgio de Oliveira;
Pesquisa Agropecuária Brasileira , 2006, DOI: 10.1590/S0100-204X2006000900010
Abstract: the objective of this work was to evaluate starch sources (fine ground x popped corn) and protein sources (soybean meal x fish meal x urea) varying in rumen degradability in order to feed dairy cows. fifty-six holstein cows averaging 112 days in milk were used. the treatments were: mfs (fine ground corn + soybean meal); pfs (popped corn + soybean meal); pfp (popped corn + soybean meal + fishmeal) and pu (popped corn + soybean meal + urea). the treatment pfs did not affect milk yield, but it decreased milk fat content, milk fat yield and milk protein content, compared to mfs. milk yield was higher for pfs than for pfp or pu. treatment with fishmeal (pfp) decreased milk fat content, milk fat yield and 3.5% fcm yield, but increased milk protein content.
Antibiotic-resistance Staphylococcus aureus isolated from cow’s milk in the Hawassa area, South Ethiopia
Daka Deresse,G/silassie Solomon,Yihdego Dawit
Annals of Clinical Microbiology and Antimicrobials , 2012, DOI: 10.1186/1476-0711-11-26
Abstract: Background Quarter milk samples from cows were examined to determine the prevalence of Staphylococcus aureus (SA) and different antibiotic resistant pattern were determined in a cross-sectional study design. Objective The objective of this study was to isolate Staphylococcus aureus from samples of cow’s milk obtained from Hawassa area and to determine their antibiotic susceptibility patterns. Method A total of 160 milk (CCP1-CCP5) samples were collected and screened for the presence of S. aureus. Gram staining, oxidase, catalase, DNase, haemolysis and coagulase tests were employed for bacterial identification. Results All the samples were contaminated with S. aureus. A total of 78 S. aureus isolates were obtained during this study. The levels of contamination with S. aureus were higher in milk obtained from CCP1, CCP2, CCP3, CCP4 and CCP5 at Hawassa area farms (18.0%, 25.6%, 27.0%, 21.8% and 7.7%) respectively. A large percentage of the S. aureus isolates (25.6% and 27.0%) were from CCP2 and CCP3. All strains were resistant to Penicillin G (PG) (10 μg), Ampicillin (AP) (10 μg), Amoxicillin-Clavulanic acid (AC) (30 μg), Ciprofloxacin (CIP) (5 μg), Erythromycin (E) (15 μg), Ceftriaxone (CRO) (30 μg), Trimethoprime-Sulfamethoxazole (TMP-SMZ) (25 μg) Oxacillin (Ox) (1 μg) and Vancomycin (V) (30 μg), 67.9%, 70.9%, 30.9%, 0%, 32.1%, 23.1%, 7.7%, 60.3% and 38.5% respectively. Conclusion The proportion of isolates resistant to CIP, TMP-SMZ, CRO, AC, E and V were low compared to AP, PG and Ox. S. aureus is normally resident in humans; therefore, the S. aureus present in the cow’s milk may have resulted from transmission between the two species, emphasizing the need to improve sanitary conditions in the milking environment.
de Almeida C,Roberto Ronald;
Revista chilena de nutrición , 2011, DOI: 10.4067/S0717-75182011000200011
Abstract: camels are good milk producers and the selected animals are as good as the top cows for milk production. the camel milk has features that make it not only good as a supplement in the diet of humans, but in certain conditions such as allergies (does not contain beta-lactoglobulin, the cow's milk most important allergenic protein), lactose intolerance, general infections, diabetes, and even could be considered useful in the diet of patients with autism. its use is, unfortunately, restricted to some populations where this animal is native. by its chemical composition does not clot in an acidic environment; it is rich in insulin, contains small dimeric immunoglobulins which suggest its use in molecular engineering. in conclusion, for its usefulness, camel farming should be encouraged, since these animals may become endangered animals.
Listeria spp., y L. monocytogenes EN LECHE CRUDA DE CABRA
Albarracín C,Yolanda; Poutou P,Raúl; Carrascal C,Ana;
Revista MVZ Córdoba , 2008,
Abstract: objective. to test non-pasteurized goat’s milk from the village of ‘la garita’, northern santander, for listeria monocytogenes. material and methods. 90 samples of non-pasteurized goat&’s milk were obtained over a 4 month period; ph and temperature of each sample were measured. the invima technique was used to isolate l. monocytogenes; the species was confirmed by pcr. results. the study showed that eight goat milk providers of the zone neither had refrigeration nor pasteurized the milk. the prevalence of l. monocytogenes was 3%; 15% of the samples had other species of listeria. the milk obtained from this zone contained the pathogen that may cause listeriosis in children less than 5 years of age, pregnant women, adults and immunologically compromised patients. conclusions. this study shows the occurrence of this pathogen in goat&’s milk and identified areas of risk for those people who drink goat&’s milk.
Listeria spp., y L. monocytogenes EN LECHE CRUDA DE CABRA
Yolanda Albarracín C,Raúl Poutou P,Ana Carrascal C
Revista MVZ Córdoba , 2008,
Abstract: Objective. To test non-pasteurized goat’s milk from the village of ‘la Garita’, Northern Santander, for Listeria monocytogenes. Material and methods. 90 samples of non-pasteurized goat’s milk were obtained over a 4 month period; pH and temperature of each sample were measured. The INVIMA technique was used to isolate L. monocytogenes; the species was confirmed by PCR. Results. The study showed that eight goat milk providers of the zone neither had refrigeration nor pasteurized the milk. The prevalence of L. monocytogenes was 3%; 15% of the samples had other species of Listeria. The milk obtained from this zone contained the pathogen that may cause listeriosis in children less than 5 years of age, pregnant women, adults and immunologically compromised patients. Conclusions. This study shows the occurrence of this pathogen in goat’s milk and identified areas of risk for those people who drink goat’s milk.
A. Petruzzelli,D. Sola,F. Paolini,S. Baldassarri
Italian Journal of Food Safety , 2013, DOI: 10.4081/ijfs.2009.5.87
Abstract: In the last years, direct sale of raw milk by vending machines has largely increased in several European Countries and Italy. As a consequence, adequate hygienic measures and correct consumer’s information is required in order to reduce any potential risk linked to this product. In the present study, the occurrence of pathogens (Salmonella spp., verocytotoxigenic E.coli, Campylobacter spp., Listeria monocytogenes, S.aureus) in raw milk and bovine faeces collected in 4 farms in the province of Pesaro-Urbino (Italy), between January 2007 and March 2009 has been investigated; 99.5% of milk samples resulted negative for the pathogens considered and complying with the regulation S. aureus limits. Campylobacter has been found in 0.44% of the samples, collected during summer, while only one sample resulted positive to a non-verocytotoxigenic E.coli O157. In respect to faeces, 62.6% of the samples resulted negative, 33.6% were contaminated by Campylobacter spp. (68% Campylobacter coli and 32% Campylobacter jejuni) and 3.8% by E.coli O157. No samples resulted positive for Salmonella spp. or Listeria monocytogenes. The results highlight the necessity of a strict plan of hygienic and sanitary controls, with particular attention to milking process hygiene and raw milk storage, to reduce the risk of contamination of the product.
Use of Donkey Milk in Children with Cow’s Milk Protein Allergy
Paolo Polidori,Silvia Vincenzetti
Foods , 2013, DOI: 10.3390/foods2020151
Abstract: Human breast milk is the best nutritional support that insures the right development and influences the immune status of the newborn infant. However, when it is not possible to breast feed, it may be necessary to use commercial infant formulas that mimic, where possible, the levels and types of nutrients present in human milk. Despite this, some formula-fed infant develops allergy and/or atopic disease compared to breast-fed infants. Cow’s milk allergy can be divided into immunoglobulin IgE mediated food allergy and non-IgE-mediated food allergy. Most infants with cow’s milk protein allergy (CMPA) develop symptoms before 1 month of age, often within 1 week after introduction of cow’s milk-based formula. Donkey milk may be considered a good substitute for cow’s milk in feeding children with CMPA since its composition is very similar to human milk. Donkey milk total protein content is low (1.5–1.8 g/100 g), very close to human milk. A thorough analysis of the donkey milk protein profile has been performed in this study; the interest was focused on the milk proteins considered safe for the prevention and treatment of various disorders in humans. The content of lactoferrin, lactoperoxidase and lysozyme, peptides with antimicrobial activity, able to stimulate the development of the neonatal intestine, was determined. Donkey milk is characterized by a low casein content, with values very close to human milk; the total whey protein content in donkey milk ranges between 0.49 and 0.80 g/100 g, very close to human milk (0.68–0.83 g/100 g). Among whey proteins, α-lactalbumin average concentration in donkey milk is 1.8 mg/mL. The results of this study confirmed the possibility of using donkey milk in feeding children with CMPA.
Calidad bacteriológica de la leche cruda de cabra producida en la parroquia Faría, municipio Miranda, estado Zulia, Venezuela
García U,A; Rivero,J; Gonzáles,P; Valero-Leal,K; Izquierdo,P; García,A; Colmenares,C;
Revista de la Facultad de Agronomía , 2009,
Abstract: type and number of bacteria in milk at farm level is associated with sanitary management conditions of both, farm and animals which affects its microbiological quality. with the objective of studying the bacteriological qualiy of raw goat milk produced in the faria civil parish, miranda municipality of zulia state, 100 milk samples were collected directly from both nipples of 50 goats belonging to 10 farms and 10 samples from the milk pool of each of such farms. in the nipple samples bacteria were identified by biochemical tests while in the pool samples counts of mesophilic aerobic (ma), total coliform (tc), psychrophilic (ps), thermophilic (ter) and thermoduric (ted) bacteria were performed according to apha methods. coliforms in these pool samples were also identified by biochemical tests. bacteria genus aisolated from nipples were: staphylococci sp. 54.84% from which 32.26% were coagulase negative and 22.58% st. aureus, streptococcus 22.58% from which 19.35% were streptococcus sp. and 3.23% were str. agalactiae, micrococcus 16.13% and pseudomonas 6.45%. average pool sample counts were: 1.8x107, 8.3x105, 2.5x103, 1.8x104 and 1.1x104 (ufc.ml-1) for ma, tc, ps, ter and ted respectively. coliforms found were: e. coli 40%, enterobacter sakazakii 25%, citrobacter spp. 20%, enterobacter spp.10% and klebsiella 5%.from these results we concluded that in the milk of the farms tested, representatives of the faria civil parish predominates bacteria species associated with intramammary infections. elevated bacteria counts evidence a low bacteriological quality of this goat milk therefore making its use for raw milk fresh cheesemaking unsafe and risky for public health.
Isolation and identification of yeasts in milk samples from cows' mammary glands
Vesna Jaki,Darko Majnari?,Jadranka Jurmanovi?,?eljka Ba?uli?
Mljekarstvo , 2007,
Abstract: The purpose of this study was to isolate fungi from the milk of cow udder quarters with clinical mastitis. The samples were delivered in Veterinary laboratory in Kri evci during a routine mastitis diagnostics. Milk samples were cultured on Columbia agar (Merck, KgaA, Darmstadt, Germany) with 5 % ovine blood, Sabouraud 4 % maltose agar (Merck, KgaA, Darmstadt, Germany) and Rice extract agar (Merck, KgaA, Darmstadt, Germany). The final diagnosis was established regarding to the results of the API 20 C AUX systems (bioMerieux, Lyon, France). All of the fungal isolates were yeasts, genera Candida spp. (76.2 %) and Trichosporon spp. (23.8 %). The most prevalent species were: C. quilliermondi (21.4 %), C. krusei/inconspicua (11.9 %) and Trichosporon mucoides (14.3 %).
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