Milk fatty acids profile and arterial blood milk fat precursors concentration of dairy goats fed increasing doses of soybean oil

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).

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Influence of Feeding Linseed on SCD Activity in Grazing Goat Mammary Glands

Animals ◽

10.3390/ani9100786 ◽

2019 ◽

Vol 9 (10) ◽

pp. 786 ◽

Cited By ~ 1

Author(s):

Raffaella Tudisco ◽

Biagina Chiofalo ◽

Vittorio Lo Presti ◽

Valeria Maria Morittu ◽

Giuseppe Moniello ◽

...

Keyword(s):

Fatty Acids ◽

Treatment Group ◽

Milk Fat ◽

Saturated Fatty Acids ◽

Mammary Glands ◽

Control Group ◽

Dairy Goats ◽

Milk Fatty Acids ◽

Homogeneous Groups ◽

Stearoyl Coa Desaturase

The effects of linseed feeding on the stearoyl-CoA desaturase (SCD) activity were evaluated on grazing dairy goats divided into two homogeneous groups (C, control, and L, treated) fed the same amount of concentrate which, for group L was supplemented with linseed. Milk yield was unaffected by the treatment. Group L showed significantly higher milk fat (4.10% vs 2.94%, p < 0.01) than group S. Within milk fatty acids, group C showed significantly higher levels of saturated fatty acids and lower values of mono-unsaturated and polyunsaturated fatty acids. In group L, total CLAs were higher than in group S (0.646% vs 0.311%; p < 0.01) mainly because of the differences in CLA cis9 trans 11 (0.623% vs 0.304%; p < 0.01). In treated animals, SCD activity, measured as cis9 C14:1/C14:0, was lower than in the control group, mainly in July and August.

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Short communication: Relationships between the daily intake of unsaturated plant lipids and the contents of major milk fatty acids in dairy goats

Spanish Journal of Agricultural Research ◽

10.5424/sjar/2015132-6509 ◽

2015 ◽

Vol 13 (2) ◽

pp. e06SC03 ◽

Cited By ~ 1

Author(s):

Andrés L. Martínez Marín ◽

Nieves Núñez Sánchez ◽

Ana I. Garzón Sigler ◽

Francisco Peña Blanco ◽

Miguel Angel De la Fuente

Keyword(s):

Fatty Acids ◽

Milk Fat ◽

Short Communication ◽

Daily Intake ◽

Dairy Goats ◽

Milk Fatty Acids ◽

Plant Lipid ◽

Plant Lipids ◽

Negative Effect ◽

Meta Regression

<p>A meta-regression of the effects of the amount of plant lipids consumed by dairy goats on the contents of some milk fat fatty acids (FA) was carried out. Fourteen peer-reviewed published papers reporting 17 experiments were used in the study. Those experiments compared control diets without added fat with diets that included plant lipids rich in unsaturated FA, summing up to 64 treatments. The results showed that increasing daily intake of plant lipids linearly reduced the contents of all medium chain saturated FA in milk fat. Moreover, it was observed that the longer the chain of the milk saturated FA, the greater the negative effect of the plant lipid intake on their contents. On the other hand, the contents of stearic acid and the sum of oleic, linoleic and α-linolenic acids in milk fat linearly increased as daily plant lipid intake rose. The results obtained corroborate previous reports on the effects of feeding dairy goats with increasing amounts of unsaturated plant lipids on milk FA profile.</p>

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Profile of milk fatty acids from moxotó goats fed with different levels of manicoba (Manihot Glaziovii Muel Arg.) silage

Brazilian Archives of Biology and Technology ◽

10.1590/s1516-89132008000600011 ◽

2008 ◽

Vol 51 (6) ◽

pp. 1163-1169 ◽

Cited By ~ 4

Author(s):

Ítala Viviane Ubaldo Mesquita ◽

Roberto Germano Costa ◽

Rita de Cássia Ramos do Egypto Queiroga ◽

Ariosvaldo Nunes de Medeiros ◽

Alexandre Ricardo Pereira Schuler

Keyword(s):

Fatty Acids ◽

Milk Fat ◽

Nutritional Value ◽

Latin Square ◽

Health It ◽

Milk Fatty Acids ◽

Linear Effect ◽

Fatty Acids Profile ◽

Manihot Glaziovii ◽

Different Levels

The objective of this work was to evaluate the effects of the manicoba silage use (Manihot glaziovii Muel Arg.) in different roughage:concentrate ratios (30:70; 40:60; 50:50 and 60:40 %) on the fatty acids profile of the milk from Moxotó goats. Eight multiparous goats with approximately 60 post-birth days and weigh 44 kg on average were used in a Double Latin Square with four treatments, four periods and four animals. Each period lasted 15 days with 10 days of adaptation to experimental diets and 5 days of milk collection. The results of the fatty acids analyses were submitted to the analysis of variance (ANOVA) and regression. An increasing linear effect for the miristic acid (C14:0) and decreasing for the linoleic acid (C18:3) was observed in function of the silage levels in diet. The milk fat presented high contents of desirable fatty acids (C18:0 + unsaturated acids), considered as nutritionally important due to their benefits to the human health. It could be concluded that the manicoba silage could be included in the diet with the participation of up to 60%, presenting a nutrient supply of high nutritional value.

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Milk Fatty Acid Profiles in Different Animal Species: Focus on the Potential Effect of Selected PUFAs on Metabolism and Brain Functions

Nutrients ◽

10.3390/nu13041111 ◽

2021 ◽

Vol 13 (4) ◽

pp. 1111

Author(s):

Maria P. Mollica ◽

Giovanna Trinchese ◽

Fabiano Cimmino ◽

Eduardo Penna ◽

Gina Cavaliere ◽

...

Keyword(s):

Fatty Acids ◽

Human Health ◽

Milk Fat ◽

Animal Species ◽

Essential Fatty Acids ◽

In Vivo Studies ◽

Omega 3 ◽

Milk Fatty Acids ◽

Brain Functions ◽

The Impact

Milk contains several important nutrients that are beneficial for human health. This review considers the nutritional qualities of essential fatty acids (FAs), especially omega-3 (ω-3) and omega-6 (ω-6) polyunsaturated fatty acids (PUFAs) present in milk from ruminant and non-ruminant species. In particular, the impact of milk fatty acids on metabolism is discussed, including its effects on the central nervous system. In addition, we presented data indicating how animal feeding—the main way to modify milk fat composition—may have a potential impact on human health, and how rearing and feeding systems strongly affect milk quality within the same animal species. Finally, we have presented the results of in vivo studies aimed at supporting the beneficial effects of milk FA intake in animal models, and the factors limiting their transferability to humans were discussed.

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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

Annals of Animal Science ◽

10.1515/aoas-2016-0019 ◽

2016 ◽

Vol 16 (4) ◽

pp. 1045-1058 ◽

Cited By ~ 9

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.

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Effects of dietary energy levels using calcium salts of fatty acids on nutritive value of diets and milk quality in peripartum dairy goats

Ciência e Agrotecnologia ◽

10.1590/s1413-70542014000300009 ◽

2014 ◽

Vol 38 (3) ◽

pp. 286-294 ◽

Cited By ~ 3

Author(s):

Rodrigo de Souza ◽

Claudete Regina Alcalde ◽

Bruna Hygino ◽

Bruna Susan de Labio Molina ◽

Geraldo Tadeu dos Santos ◽

...

Keyword(s):

Fatty Acids ◽

Body Weight ◽

Energy Level ◽

Milk Fat ◽

Dry Matter ◽

Nutritive Value ◽

Energy Levels ◽

Milk Quality ◽

Dietary Energy ◽

Dairy Goats

Peripartum is a critical period for dairy goats, as dry matter intake (DMI) is not enough to supply the energy requirement for foetal growth and subsequent lactation. The objective of this study was to evaluate the use of calcium salts of fatty acids (CSFA) to increase dietary energy level of peripartum dairy goats and its effects on nutritive value of diets and milk quality. Twenty multiparous Saanen goats (body weight 63.5±10.3 kg) were distributed in a completely randomised design in four treatments at the following dietary energy levels: 2.6 Mcal of metabolisable energy per kg of dry matter (Mcal ME/kg DM) - control diet; and 2.7, 2.8, and 2.9 Mcal/kg DM - with added CSFA. Goats were housed in individual stalls and evaluated in the peripartum period, by measuring body weight (BW), DMI, dry matter and nutrient digestibility of diets, blood composition, and milk quality and yield. Increasing dietary energy level to 2.9 Mcal ME/kg DM had no effect on BW and did not limit DMI. CSFA supplementation increased intake of total digestible nutrients and did not affect fibre digestion. Blood triglycerides and cholesterol concentration increased with CSFA addition. The treatments had no effect on milk yield and composition; however, CSFA supplementation changed the fatty acid concentration of milk fat, increasing levels of polyunsaturated and essential fatty acids. In conclusion, peripartum dairy goats supplemented with CSFA to increase dietary energy level up to 2.9 Mcal ME/kg DM had a greater supply of total digestible nutrients and showed altered fatty acid concentration of milk fat.

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The Effect of Refining Process on the Volatile Compounds, Oxidation Stability and Fatty Acids Profile of Soybean Oil Using an Electrostatic Field

Journal of Food Processing and Preservation ◽

10.1111/jfpp.16160 ◽

2021 ◽

Author(s):

Atefeh Tavakoli ◽

Mohammad Ali Sahari ◽

Mohsen Barzegar ◽

Hassan Ahmadi Gavlighi ◽

Silvia Marzocchi ◽

...

Keyword(s):

Fatty Acids ◽

Soybean Oil ◽

Volatile Compounds ◽

Electrostatic Field ◽

Oxidation Stability ◽

Refining Process ◽

Fatty Acids Profile

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GENOME-WIDE ASSOCIATION STUDY FOR COWS’ MILK FATTY ACIDS DERIVED BY INFRARED SPECTRA

BIOTECHNOLOGY: STATE OF THE ART AND PERSPECTIVES ◽

10.37747/2312-640x-2021-19-352-354 ◽

2021 ◽

Vol 1 (19) ◽

pp. 352-354

Author(s):

E.A. Gladyr ◽

L.P. Ignatieva ◽

I.A. Lashneva ◽

A.A. Kositsin ◽

O.A. Artemieva ◽

...

Keyword(s):

Fatty Acids ◽

Milk Fat ◽

Genome Wide Association Study ◽

Cow Milk ◽

Fat Percentage ◽

Milk Fatty Acids ◽

Linear Type ◽

Black And White ◽

Genome Wide ◽

First Results

The first results of the genome-wide associations analysis for fatty acids composition in cow milk by Russian Holsteinized Black-and-White and Holstein breeds were obtained. Genomic regions (QTL) associated with milk fat percentage, fatty acids synthesis, functional parameters of linear type for udder and leg traits, fertility features have been detected.

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