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Milk yield, milk composition and somatic cell count of dairy goats given n-3 unsaturated fatty acids diet supplement
Gantner Vesna,Kompan D.
Acta Veterinaria , 2012, DOI: 10.2298/avb1203281g
Abstract: Research of the effects of n-3 unsaturated fatty acids (PUFA, particularly eicosapentaenoic acid-EPA; α-linoleic acid-ALA; docosahexaenoic acid-DHA) on goat’s milk production (daily milk yield; daily fat, protein and lactose content) and somatic cell count and the persistence of this effect after terminated supplementation was conducted on 62 machine-milked Alpine breed goats kept at an indoor Alpine farm. After adoption period the animals were randomly allocated according to supplement addition into control group (G-4) with no added supplement and test groups (G-1; G-2; G-3) where a supplement containing PUFA was added over a period of five days. Measurements of milk yield and sampling (70 mL) for analysis of milk composition during the adoption period, supplementation period and first five days after supplementation were done every day at each milking (morning and evening). From the 5th to the 50th day of the after supplementation period, measurements and sampling occurred every fifth day. Based on the obtained results it could be concluded that the PUFA dietary addition alters the quantity and the quality of produced milk. DHA and EPA supplementation increase daily milk yield, while ALA supplementation induces a decrease of milk yield. When milk content is taken into consideration, the effects are contrary. Regarding somatic cell count, the highest effect on reduction was determined when ALA supplement was added. The mentioned effects persisted after the dietary supplement was withdrawn. The obtained results could be used in dietary supplementation planning in respect to the desired effects. Further research with the aim of determining the fatty acid composition of milk fat is needed.
Avoparcin Supplementation of Italian Friesian Dairy Cows Diet: Effects on Milk Quality
Paolo Polidori
Journal of Animal and Veterinary Advances , 2012,
Abstract: To evaluate the effects on milk quality of supplementary Avoparcin in the diet, 40 Italian Friesian dairy cows were divided into two homogeneous groups, the treated one fed with Avoparcin added to a mineral-vitaminic premix, the control one fed with the same premix without Avoparcin. The trial lasted 60 days after two adapting weeks; each cow of the treated group received 120 mg daily of Avoparcin during the treatment period. No differences were found beetwen the two groups of cows for the following parameters: milk yield, total protein, fat, somatic cells and total bacterial count, while in the milk of the treated group lactose content was significantly (p<0.001) higher. After 45 days of treatment, trans isomers fatty acid content significantly increased (p<0.05) in the milk of the treated group, and particularly trans-vaccenic acid. Also some unsaturated fatty acids (linoleic and linolenic acid) significantly increased (p<0.05) their concentrations in milk fat of cows fed with Avoparcin supplementation.
Somatic cell and factors which affect their count in milk  [cached]
Zrinka ?a?i?,Samir Kalit,Neven Antunac,Mato ?a?i?
Mljekarstvo , 2003,
Abstract: Milk quality is determined by chemical composition, physical characteristics and hygienic parameters. The main indicators of hygienic quality of milk are total number of microorganisms and somatic cell count (SCC.) Environmental factors have the greatest influence on increasing SCC. The most important environmental parameters are status of udder infection, age of cow, stage of lactation, number of lactation, breed, housing, geographicalarea and seasons, herd size, stress, heavy physical activity and, milking. A farmer (milk producer) himself can control a great number of environmental factors using good management practise and permanent education. Since SCC participate in creating the price of milk, it is necessary to inform milk producers how to organise their production so that they would produce maximum quantity of good hygienic quality milk.
Evaluation of Buffalo Milk With Reference to Somatic Cell Count and Antitrypsin  [cached]
Syed.A.M,S.U. Digraskar,K.B.Awaz
Veterinary World , 2009,
Abstract: The present study was carried out for the assessment of buffalo milk quality by assessing the somatic cell count and antitrypsin of milk. Thirty buffalo milk samples collected directly from udder were subjected to the detection of somatic cell count and antitrypsin of the milk. The mean value of somatic cell count was 223.46x103±26.522 cells/ml and the mean value of antitrypsin of raw buffalo milk was 6.87±0.054 μg/ml. The result showed that there was an increased somatic cell count and antitrypsin which indicated that there was inflammation of udder suggestive of underlying mastitis. [Vet World 2009; 2(7.000): 267-268]
Comparing milk yield, chemical properties and somatic cell count from organic and conventional mountain farming systems  [cached]
Luca Maria Battaglini,Manuela Renna,Alex Garda,Carola Lussiana
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2009.s2.384
Abstract: A study was undertaken to investigate the effects of farming systems (organic vs. conventional), diet (hay/concentrate vs. pasture) and their interaction on milk yield, gross composition and fatty acid (FA) profile of dairy cows bred in mountainous areas. For this purpose four dairy farms (two organic and two conventional) were chosen in the alpine territory of Aosta Valley (NW Italy); individual milk yield was recorded daily and bulk milk samples were collected monthly from February to September 2007 to cover dietary variations. Higher levels of milk production (P<0.05) and lower milk protein amounts (P<0.01) were observed in the organic farms with respect to the conventional ones, while no significant differences were noticed in milk fat and lactose contents and in somatic cell count. Concerning fatty acids, only small differences were detected between organic and conventional milk and such differences seemed to be related mainly to the stabled period. Diet affected almost all variables studied: pasture feeding provided a significant improvement in the fatty acid composition in both organic and conventional systems leading to lower hypercholesterolemic saturated fatty acids, higher mono- and polyunsaturated fatty acids and conjugated linoleic acid amounts (P<0.001).
Journal of Central European Agriculture , 2007,
Abstract: The aim of the present paper was to evaluate the cytological quality of goat milk based on the somatic cell count in respective months of lactation. Besides there was defined the effect of somatic cell on the milk production and chemical composition of milk. The research covered goats of color improved breed in the 2nd and 3rd lactation. Daily milk yield, chemical composition of milk and its somatic cell count were defined based on monthly morning and evening control milkings from both teats, following the A4 method applied in District Animal Evaluation Stations. The research indicated that the greater the somatic cell count in milk, the lower the daily milk yield, however the greater the somatic cell count, the greater the percentage content of fat and dry matter and the lower the content of lactose.
Effects of the Selenium and Vitamin E in the Production, Physicochemical Composition and Somatic Cell Count in Milk of Ayrshire Cows
Guerra Liera Juan Eulogio,Saltijeral Oaxaca Jorge Alberto,Castaneda Vazquez Hugo,Cervantes Nunez Antonio,Cordova-Izquierdo Alejandro,Moreno Quiroz Juan
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2012.687.691
Abstract: The objective that lasted 270 days was to evaluate the production, chemical composition, somatic cell count in milk and body condition score in Ayrshire cows. About 20, first lactation cows were randomly assigned to one of two treatments: T1 = control, T2 = selenium and vitamin E. Identical management and diets were fed in both treatments. Performance responses to Selenium (Se) and vitamin E supplementation increases (p<0.05) daily Milk Production (MP) T1 = 8.63 vs. T2 = 9.34, percentage of Crude Protein (CP), Solids Non Fat (SNF) and lactose. Percentage of Milk Fat (MF) and content of Total Solids (TS) was not affected by treatment (p>0.05). Decreased number (p<0.05) of Somatic Cells Count (SCC) was attributable to dietary Se and vitamin E supplementation (2.053 vs. 1.509). Body Condition Score (BCS) in both treatments was similar between treatments (2.5-3.0). Researchers conclude that the incorporation of Se and vitamin E in commercial diets of grazing first lactation cows increases MP and percentage of CP, SNF and lactose content and decreases SCC while BCS of animals were unaffected by treatment. This data confirm earlier findings that Se and vitamin E supplementation are related to mammary health gland. The performance and economic feasibility of the use of selenium plus Vit. E allowed us to obtain a profit margin of $0.21 (US cents) per animal per day in this study.
Buffalo milk: proteins electrophoretic profile and somatic cell count  [cached]
M. Pasquini,B. Tommei,S. Mattii
Italian Journal of Animal Science , 2011, DOI: 10.4081/ijas.2003.s1.299
Abstract: Water buffalo milk differs from the cow’s milk for greater fat and protein content, very important features in cheese making. Proteins, casein and whey-proteins in particular, are the most important factors determining cheese yield. Several previous research discussed the rule of SCC in cow milk production (Varisco, 1999) and the close relationship existing between cow’s milk cheese yield and somatic cell count (Barbano, 2000). In particular the inverse correlation between cheese yields and somatic cells’content have been demonstrated. In Italy the regulation in force DPR 54/97 acknowledges what expressed in EEC 46/92 Directive (Tripodi, 1999) without fixing the limit threshold of somatic cells for buffalo’s milk....
Blood count and number of somatic cells in milk of cows infected with Coxiella burnetii  [PDF]
Radinovi? Miodrag,Bobo? Stanko,Paji? Marija,Vidi? Branka
Veterinarski Glasnik , 2011, DOI: 10.2298/vetgl1106367r
Abstract: The objective of the work was to examine the intensity of the local immune response of the mammary gland and the changes in the differential blood count of chronically infected cows. An experiment was performed on a group of cows with Q fever serologically proven using the ELISA test (IDEXX). Based on the ELISA test results, an experimental group of ten infected cows was formed. Blood was sampled from the experimental cows, and cumulative milk samples were taken. The number of erythrocytes was determined spectrophotometrically, and the number of leucocytes using the method according to Bürker - Türk. The blood analysis established an increased number of erythrocytes, while the number of leucocytes was within the limits of physiological values. The milk samples were used for the determination of the number of somatic cells using flow cytometric measurements. The processing of the milk samples established an average number of somatic cells of 853.000 /mL milk.
Influence of somatic cell count on mineral content and salt equilibria of milk  [cached]
Andrea Summer,Piero Franceschi,Massimo Malacarne,Paolo Formaggioni
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2009.s2.435
Abstract: Aim of this research was to study the effect of somatic cell count on mineral content and salt equilibria at the level of quarter milk samples. Ten Italian Friesian cows, in which two homologous quarters (front quarters in 1 cow, rear quarters in 6 cows and both rear and front quarters in 3 cows) were characterised by a milk SCC<400,000 cells/mL (LC-milk) and milk SCC>400,000 cells/mL (HC-milk), respectively, were selected. Cows were milked at quarter level during the morning milking and a single sample was collected from each selected quarter, thus, 26 quarter milk samples were collected. Compared to LC-milk, HC-milk was characterised by a lower content of phosphorus and potassium and by a higher content of both sodium and chloride. The equilibrium of calcium, phosphorus and magnesium between the colloidal and soluble phase of milk and the mineralisation degree of the casein micelles, were not different between HC and LC milk.
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