scholarly journals Genetic and environmental relationships of detailed milk fatty acids profile determined by gas chromatography in Brown Swiss cows

2016 ◽  
Vol 99 (2) ◽  
pp. 1315-1330 ◽  
Author(s):  
S. Pegolo ◽  
A. Cecchinato ◽  
J. Casellas ◽  
G. Conte ◽  
M. Mele ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Milk Fatty Acids ◽  
Brown Swiss ◽  
Environmental Relationships ◽  
Fatty Acids Profile

scholarly journals Effects of Dietary Supplementation with Different Polyunsaturated Fatty Acids on Expression of Genes Related to Somatotropic Axis Function in the Liver, Selected Blood Indicators, Milk Yield and Milk Fatty Acids Profile in Dairy Cows

2016 ◽  
Vol 16 (4) ◽  
pp. 1045-1058 ◽  
Author(s):  
Essa Dirandeh ◽  
Armin Towhidi ◽  
Zarbakht Ansari ◽  
Saeeid Zeinoaldini ◽  
Mehdi Ganjkhanlou
Keyword(s):  
Fatty Acids ◽  
Plasma Concentrations ◽  
Dietary Supplementation ◽  
Omega 3 ◽  
Milk Fatty Acids ◽  
Somatotropic Axis ◽  
Fatty Acids Profile ◽  
Expression Of Genes ◽  
Omega 6 ◽  
And Control

Abstract The objective of this study was to investigate whether dietary supplementation with different polyunsaturated fatty acids (PUFA s) affects expression of genes related to somatotropic axis and the plasma concentrations of insulin, glucose, non-esterified fatty acids (NEFA), beta hydroxyl butyrate acids (BHBA) and insulin-like growth factor 1 (IGF1) and milk fatty acids profile. Right after calving, Holstein cows (n=45) were randomly assigned to one of three diets supplemented with roasted whole soybean as a source of omega-6 PUFA (omega-6, n=15), linseed as a source of omega-3 PUFA (omega-3, n=15) or palm oil (control, n=15). Each cow was in the study over a period of 70 days. Blood samples were collected every two weeks from day 1 to 70 of lactation and plasma concentrations of insulin, glucose, NEFA, BHBA and IGF1 were determined. Liver samples were taken from a subset of 18 cows (6 per diet) at day 70 postpartum and hepatic mRNA level of total growth hormone-receptor 1A (GHR1A), insulin receptor (INSR), IGF1 and insulinlike growth factor binding protein (IGFBP2) was assessed. Experimental diets did not affect milk yield. Plasma glucose and insulin concentrations were greater for omega-3 treatment compared to omega-6 and control treatments. Cows fed diets enriched in omega-3 exhibited greater INSR and GHR1A mRNA expression, and a tendency for greater IGF1 mRNA expression in the liver compared to omega-6 and control cows. Plasma IGF1 concentration was significantly higher in omega-3 treatment compared with omega-6 and control treatments. Results of this study suggest that feeding omega-3 PUFA s during early postpartum couples with the somatotropic axis, leading to an increase in plasma IGF1 concentration in dairy cows.

scholarly journals Effects of foal presence at milking and dietary extra virgin olive oil on jennet milk fatty acids profile

2009 ◽  
Vol 8 (sup2) ◽  
pp. 712-714
Author(s):  
Cristina Giosué ◽  
Judith Louise Capper ◽  
Giuseppe Maniaci ◽  
Dale Elton Bauman ◽  
Francesca Mazza ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Olive Oil ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Milk Fatty Acids ◽  
Fatty Acids Profile

scholarly journals Effect of supplemental rumen-protected lysine, methionine or both added to diet of lactating dairy cows on milk fatty acids profile

2010 ◽  
Vol 58 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Ludmila Křížová ◽  
Jiří Třináctý ◽  
Jarmila Svobodová ◽  
Michal Richter ◽  
Vladimír Černý ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Dairy Cows ◽  
Milk Fat ◽  
Latin Square ◽  
Total Content ◽  
Experimental Period ◽  
Maize Silage ◽  
Milk Fatty Acids ◽  
Fatty Acids Profile ◽  
Lactating Dairy Cows

The objective of this study was to determine the effect of supplemental lysine (Lys), methionine (Met) or both added to diet of dairy cows in the form of rumen-protected (RP) tablets on changes in milk fatty acids (FA) profile. The trial was carried out on four lactating Holstein cows in the form of Latin square design and was divided into 4 periods of 14 d (10-d preliminary period and a 4-d experimental period). The four treatments were as follows: C – control without amino acids (AA) supplementation, L – supplement of RP Lys, M – supplement of RP Met and ML – supplement of RP Met and Lys. Cows were fed on a diet based on maize silage, lucerne hay and supplemental mixture. Milk yield in ML (34.18 kg/d) was higher than in L or M (32.46 kg and 32.13 kg, respectively, P < 0.05) and tended to be higher than in C (33.33 kg/d, P > 0.05). Protein yield in ML (1054 g / d) was higher than that found in C, L or M (990, 998 or 968 g / d, respectively, P < 0.05). Milk fat content and yield in C and ML was higher in comparison to L and M (P < 0.05). Content of short-chain FA (C 4:0–C 12:0) was not affected by the treatment except of L that was lower than in C (P < 0.05). Content of medium-chain FA in M was lower compared to C, L or ML (P < 0.05). The content of long-chain FA in M was significantly higher than in other groups (P < 0.05). The total content of SFA in M was lower than in C or ML (P < 0.05) and tended to be lower than in L. Contents of UFA, MUFA and PUFA in M were higher than in C and ML (P < 0.05).

scholarly journals Lamb meat fatty acids profile characterization employing gas chromatography

Nacameh ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 39-49
Author(s):  
M.I. Cruz-González ◽  
◽  
D.I. Sánchez-Machado ◽  
J. López-Hernández ◽  
J.A. Munguia-Xochihua ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acids Profile ◽  
Lamb Meat

Differences on Biochemical Composition of GoatMilk at Carpathian Breed and Half Breed Saanen X Carpathian and French Alpine X Carpathian

2020 ◽  
Vol 71 (2) ◽  
pp. 352-357
Author(s):  
Andreea Hortanse Anghel ◽  
Dorina Nadolu ◽  
Elena Ilisiu ◽  
Ana Cismileanu
Keyword(s):  
Fatty Acids ◽  
Biochemical Composition ◽  
Protein Concentration ◽  
Methyl Esters ◽  
Goat Milk ◽  
Decisive Role ◽  
Omega 3 ◽  
Milk Fatty Acids ◽  
Fatty Acids Profile ◽  
Intensive System

The aim of our study was to evaluate the gradient of milk yield, of milk biochemical composition and fatty acids profile according to breed, for primipara goats from Carpathian breed and Saanen x Carpathian and French Alpine x Carpathian half breed that were grown in semi-intensive system (Dobrogea, South Romania). The studies were performed on goats raised at ANCC CAPRIROM farm, located in Constanta, Romania. The biochemical parameters (fat, proteins, lactose) were studied by electrochemical method with a Lactostar analyzer Funke Gerber type specialized for goat milk. Milk fatty acids profile, as fatty acids methyl esters (FAME), was determined by chromatographically gas method. The considerable high protein content found in half breeds, might be explained by the fact that bucks from specialized breeds such us Saanen and French Alpine which were used for half breeding, come from imported animals from France, which were locus genotyped for alpha S1 casein gene and were selected dominant genotypes that lead to a higher protein concentration in milk.The statistical analysis shows that the milk coming from Carpathian does and their half breeds is not significantly different regarding the levels of various fatty acids, saving omega 3 acids, which are considerable higher at Carpathian does, proving that food has the decisive role regarding composition.

Fatty acid composition of milk fat from three breeds of dairy cattle

1995 ◽  
Vol 75 (2) ◽  
pp. 267-269 ◽  
Author(s):  
E. J. DePeters ◽  
J. F. Medrano ◽  
B. A. Reed
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Dairy Cattle ◽  
Key Words ◽  
Acid Composition ◽  
Milk Fat ◽  
Milk Fatty Acids ◽  
Brown Swiss

The proportion of MCFA in milk fat was lowest for Holstein, highest for Jersey, and intermediate for Brown Swiss cows. Proportions of SCFA (C4:0 to C8:0) and LCFA (> 18 C) did not differ among breeds. Differences in fatty acid composition among breeds were small, but could contribute to differences in manufacturing properties of milk fat. Key words: Holstein, Jersey, Brown Swiss, milk fatty acids

Impact of inbreeding on milk fatty acids of a Brazilian Holstein cattle

2020 ◽  
Vol 60 (12) ◽  
pp. 1482
Author(s):  
Eula Regina Carrara ◽  
Leila de Genova Gaya ◽  
José Teodoro de Paiva ◽  
Juliana Petrini ◽  
Mayara Salvian ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Regression Coefficients ◽  
P Value ◽  
Holstein Cattle ◽  
Cattle Population ◽  
Milk Fatty Acids ◽  
P Values ◽  
Breeding Values ◽  
Inbreeding Coefficients ◽  
Fatty Acids Profile

Context Reproductive technologies may either contribute to the increase of genetic gains or inbreeding levels in dairy cattle breeding programs and herds. In general, studies have evaluated the impacts of inbreeding on traditional traits, such as production and reproduction. However, studies on novel traits, such as milk fatty acids profile, are scarce in the literature. Aim We aimed to evaluate the impact of inbreeding levels on milk fatty acids profile measured in a Brazilian Holstein cattle population. Methods Monthly records of the percentages (%) of palmitic, stearic, oleic, total saturated, unsaturated, monounsaturated and polyunsaturated fatty acids in milk were collected from 2047 Holstein cows between May and December 2012. The pedigree file contained 7963 animals over seven generations. The inbreeding trend was evaluated by linear regression of inbreeding coefficients on generations. The inbreeding impacts on breeding and phenotypic values were evaluated by linear regression of breeding values and phenotypic values on generations respectively. Breeding values were obtained by a Bayesian approach based on an animal model that included the systematic effect of contemporary group, cubic effect of days in milk as a covariate, and the random direct additive genetic and animal permanent environmental effects. Key results The average inbreeding coefficient was 0.28% for all animals, and 1.39% for inbred animals. Inbreeding tended to increase 0.24% per generation (P-value &lt;0.0001). The regression coefficients of phenotypic values on inbreeding were not significant for saturated, unsaturated, monounsaturated, palmitic, stearic and oleic fatty acids (P-values &gt;0.18, 0.10, 0.16, 0.26, 0.51 and 0.09 respectively); whereas for polyunsaturated fatty acids, they were significant (P-value &lt;0.04), with an increase of –0.000978% on phenotypic values for each 1% increase in inbreeding. The regression coefficients of breeding values on inbreeding were not significant for unsaturated, monounsaturated, polyunsaturated, stearic and oleic fatty acids (P-values &gt;0.33, 0.78, 0.48, 0.32 and 0.07 respectively). However, they were significant for saturated and palmitic fatty acids (P-values &lt;0.03 and 0.0001 respectively), presenting an increase of 0.000689% and 0.000283% respectively on breeding values for each 1% increase in inbreeding. Conclusions There was a significant increase in inbreeding coefficients over the studied generations; however, the impacts on both breeding and phenotypic values were small, when significant. Implications Our study may contribute to the understanding of how inbreeding levels may affect the fatty acids profile in a Brazilian Holstein cattle population, as well as encourage future research on this subject.

scholarly journals Effects of candidate gene polymorphisms on the detailed fatty acids profile determined by gas chromatography in bovine milk

2016 ◽  
Vol 99 (6) ◽  
pp. 4558-4573 ◽  
Author(s):  
S. Pegolo ◽  
A. Cecchinato ◽  
M. Mele ◽  
G. Conte ◽  
S. Schiavon ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Candidate Gene ◽  
Gene Polymorphisms ◽  
Bovine Milk ◽  
Fatty Acids Profile
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