scholarly journals Effect of Feeding Cows with Unsaturated Fatty Acid Sources on Milk Production, Milk Composition, Milk Fatty Acid Profile, and Physicochemical and Sensory Characteristics of Ice Cream

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 568 ◽  
Author(s):  
Einar Vargas-Bello-Pérez ◽  
Nathaly Cancino-Padilla ◽  
Carolina Geldsetzer-Mendoza ◽  
Stefanie Vyhmeister ◽  
María Morales ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Milk Production ◽  
Milk Fat ◽  
Saturated Fatty Acids ◽  
Ice Cream ◽  
Milk Composition ◽  
Sensory Characteristics ◽  
Milk Fatty Acid ◽  
Ice Creams

The objective of this study was to evaluate the effects of supplementation of dairy cows with different fatty acid sources (soybean oil (SO) and fish oil (FO)) on milk production, milk composition, milk fatty acid profile, and physicochemical and sensory characteristics of ice cream. During 63 days, fifteen Holstein cows averaging 198 ± 35 days in milk were assigned to three groups: control diet with no added lipid (n = 5 cows); and supplemented diets with SO (n = 5 cows; unrefined SO; 30 g/kg DM) or FO (n = 5 cows; FO from unrefined salmon oil; 30 g/kg DM). Milk production, milk fat, and milk protein were not affected by treatments. Saturated fatty acids in milk fat were decreased with SO and FO compared with control. C18:2 cis-9, cis-12 was increased with SO whereas C18:2 cis-9, trans-11, C20:3n-3, C20:3n-6, C20:5n-3, and C22:6n-3 were the highest with FO. Draw temperature and firmness were higher in SO compared to control and FO ice creams. Melting resistance was higher in FO compared with control and SO ice creams. Supplementation of cow diets with SO and FO did not have detrimental effects on milk production, or ice cream physicochemical and sensory characteristics.

scholarly journals Supplementation of grazing dairy cows with rumen-protected tuna oil enriches milk fat with n-3 fatty acids without affecting milk production or sensory characteristics

2004 ◽  
Vol 91 (2) ◽  
pp. 271-277 ◽  
Author(s):  
Soressa M. Kitessa ◽  
Suresh K. Gulati ◽  
Gillian C. Simos ◽  
John R. Ashes ◽  
Trevor W. Scott ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Milk Production ◽  
Milk Fat ◽  
Saturated Fatty Acids ◽  
Milk Composition ◽  
Sensory Characteristics ◽  
Tuna Oil ◽  
Total Fatty Acids ◽  
Fat Composition ◽  
Grazing Dairy Cows

The present study was conducted to determine the pattern of incorporation of dietary EPA and docosahexaenoic acid (DHA) into milk, and to evaluate consequent changes in milk fat composition and sensory characteristics. Fourteen multiparous cows in early lactation were divided into two groups and were offered supplements for 10 d. While individual stalls after each morning milking, one group was offered a mixture of rumen-protected tuna oil (RPTO)–soyabean supplement (2 kg; 30:70, w/w; +RPTO) and the second group was offered the basal ration without RPTO (−RPTO). Both groups grazed together on a spring pasture after supplementation. Feeding supplemental RPTO increased the concentrations of EPA and DHA in milk fat from undetectable levels in −RPTO cows to 6·9 and 10·1 g/kg milk fat respectively. Total n-3 PUFA concentration in milk fat was increased three- to fourfold by tuna-oil supplementation (8·4 to 32·0 g/kg milk fat). There were no significant effects on milk production (35·4 v. 33·9 l/d), milk protein (28·2 v. 30·1 g/kg) or milk fat (36·2 v. 40·4 g/kg for −RPTO and +RPTO respectively). The concentration of total saturated fatty acids in milk fat was significantly reduced (568 v. 520 g/kg total fatty acids) and there was a 17 % reduction in the atherosclerotic index of milk after tuna-oil supplementation. Untrained consumer panellists (n 61) rated milk from both groups of cows similarly for taste and smell. We conclude that it is possible to enrich milk with n-3 PUFA without deleterious effects on yield, milk composition or sensory characteristics.

scholarly journals Lipid Sources To Jersey Cows: Productive, Nutritional Effects and Milk Fatty Acid Compounds

2021 ◽  
Author(s):  
Ana Paula Binato de Souza ◽  
Jorge Schafhauser Junior ◽  
Rudolf Brand Scheibler ◽  
Ana Carolina Fluck ◽  
Fábio Antunes Rizzo ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Milk Production ◽  
Feed Efficiency ◽  
Metabolic Profile ◽  
Protein Digestibility ◽  
Milk Composition ◽  
Milk Fatty Acid ◽  
Calcium Salts

Abstract The aim was to assess if the replacement of fatty acid salts by oil seeds in diet of dairy cows and their effects about intake and digestibility, milk production and composition, feed efficiency, metabolic profile and milk fatty acid profile. Lipid sources evaluated were calcium salts of fatty acids (CS), linseed (LI), sunflower (SF) and soybean (SY). Diets were iso in protein, fiber and energy, with 58 g/kg (mean) of crude fat in dry matter. There were no differences (P > 0.05) in the intake of nutrient fractions. The protein digestibility was lower for SY (P < 0.001) due the fraction derived from the grain in that treatment. The ether extract digestibility was higher for CS treatment (P < 0.001), and no difference was found between the grains sources. Milk production was higher in CS, when milk production was corrected for energy, these differences disappeared. Little effect on milk composition (g/kg) was observed, only for lactose. The sources used do not affect feed efficiency, energy balance and blood metabolic profile. in CS. When observed milk fatty acid profile, there was an increase influence by CS There was no difference for saturated and polyunsaturated fatty acids (PUFA), however, monounsaturated fatty acids (MUFA) were higher for SF (P = 0.0172). The lipid sources evaluated can be used in early lactation without negative effects being able to replace calcium salts of fatty acids in diets.

Red clover silage improves milk fatty acid composition in dairy ewes

2018 ◽  
Vol 98 (4) ◽  
pp. 787-793 ◽  
Author(s):  
Gabriela C. Guzatti ◽  
Paulo G. Duchini ◽  
Marco A.S. Gama ◽  
Henrique M.N. Ribeiro-Filho
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Milk Yield ◽  
Milk Fat ◽  
Trifolium Pratense ◽  
Saturated Fatty Acids ◽  
Red Clover ◽  
Milk Composition ◽  
Milk Fatty Acid ◽  
Dairy Ewes

The purpose of this study was to evaluate the effects of two isoproteic total mixed rations containing either red clover (Trifolium pratense L.; RC diet) or lucerne (Medicago sativa L.; LU diet) silage as the major forage source on milk yield, milk composition, and milk fatty acid (FA) profile in dairy ewes. Sixteen dairy ewes were housed individually to receive the drawn diet (eight ewes eating each diet) and milked twice a day (0700 and 1500). Total dry matter intake, milk yield, milk composition, and nitrogen use efficiency were unaffected by treatments. The n-6/n-3 FA ratio tended to decrease, whereas the total polyunsaturated fatty acids (PUFAs) and PUFAs/saturated fatty acids ratio increased in the milk fat of ewes fed the RC diet compared with ewes fed the LU diet. The presence of α-linolenic (C18:3n-3) and linoleic (C18:2n-6) acids in the milk fat was 22% higher in ewes fed the RC diet than in those fed the LU diet. Compared with the LU diet, the RC diet had no effect on milk yield and composition, but improved the milk FA profile in dairy ewes due to an increased proportion of PUFAs (in particular C18:3n-3 and, to a lesser extent, C18:2n-6) and a decreased n-6/n-3 FA ratio.

scholarly journals Ruminal fermentation and degradation, kinetic flow of the digesta and milk fatty acid composition of cows fed chopped elephantgrass supplemented with soybean oil

2018 ◽  
Vol 39 (4) ◽  
pp. 1775
Author(s):  
Carlos Gustavo Santos Ribeiro ◽  
Fernando César Ferraz Lopes ◽  
Norberto Mario Rodriguez ◽  
Marco Antônio Sundfeld da Gama ◽  
Mirton José Frota Morenz
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Soybean Oil ◽  
Acid Composition ◽  
Milk Production ◽  
Milk Fat ◽  
Saturated Fatty Acids ◽  
Neutral Detergent Fiber ◽  
Milk Fatty Acid ◽  
Degradation Kinetic

The aim of this study was to evaluate the ruminal parameters of fermentation and degradation, kinetic flow of rumen digesta, and milk fatty acid composition of cows fed 52% chopped elephantgrass-based diets containing 0.0% (control), 1.5%, 3.0% and 4.5% soybean oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr dairy cows with an average milk production of 15.6 ± 3.0 kg day-1 and 90 ± 25 days in milk were allocated in a 4 x 4 Latin square design. The results were analyzed by mixed models. Significant differences were declared at P ? 0.05, and P-values from 0.05 < P ? 0.10 were considered as a trend. The inclusion of SO in the diet had no effect on the ruminal pH or total volatile fatty acid concentration, but there was a quadratic effect on the ruminal ammonia nitrogen content and a trend for a linear reduction (P = 0.07) in the molar proportion of rumen acetate. Linear reductions were also observed in the DM and neutral detergent fiber (NDF) effective degradabilities of elephantgrass forage, but the fluid and particulate passage rates in the rumen and the DM and NDF intakes were unchanged by SO inclusion in the diet. Milk production, protein and lactose contents and yields were unaltered by dietary SO levels. There were linear reductions in the milk fat and total solids contents, but there was no effect of dietary treatments on their yields. The inclusion of soybean oil in the diet of Holstein x Gyr cows fed chopped elephantgrass improved the nutritional quality of milk fat as a result of increased contents of oleic, rumenic and vaccenic acids, which are beneficial to human health, and a concomitant reduction in hypercholesterolemic saturated fatty acids such as lauric, myristic and palmitic acids.

Polyunsaturated fatty acid supplementation: effects of seaweed Ascophyllum nodosum and flaxseed on milk production and fatty acid profile of lactating ewes during summer

2016 ◽  
Vol 83 (3) ◽  
pp. 289-297 ◽  
Author(s):  
Mariangela Caroprese ◽  
Maria Giovanna Ciliberti ◽  
Rosaria Marino ◽  
Antonella Santillo ◽  
Agostino Sevi ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Milk Production ◽  
Saturated Fatty Acids ◽  
Ascophyllum Nodosum ◽  
Combination Group ◽  
Control Group ◽  
Milk Fatty Acid ◽  
Pufa Supplementation

The research reported in this Research Communication was undertaken to evaluate the effects of different sources of polyunsaturated fatty acids (PUFA) supplemented in the diet on milk production and milk fatty acid profile of lactating ewes exposed to long term heat stress. The experiment was conducted during summer, involved 32 ewes divided into 4 groups of 8 each, and lasted 6 weeks. The ewes in all groups were fed twice daily and received 1·8 kg/d of oat hay and 1 kg/d of concentrate. Flaxseed group (FS) was supplemented with 250 g/d of whole flaxseed, Ascophyllum nodosum group (AG) was supplemented with 25 g/d of seaweed Ascophyllum nodosum, and the combination group (FS + AG) received both flaxseed and Ascophyllum nodosum supplementation. The control group (CON) was fed with 1 kg/d of pelleted concentrate without PUFA supplementation. Milk samples were collected twice daily per week, and analysed for fat, total protein, casein, and lactose content. At the beginning and then at 2, 4 and 6 week of the experiment each milk sample was analysed for milk fatty acids. Temperature-humidity index (THI) was calculated daily. Supplementation of flaxseed and of the combination of flaxseed and Ascophyllum nodosum increased milk yield. The total content of saturated fatty acids (SFA) in milk decreased for ewes fed FS, followed by FS + AG. On the contrary, monounsaturated fatty acids (MUFA) increased for ewes fed FS and FS + AG. The total n-3 FA was found higher in FS and FS + AG than in AG and CON groups mainly because of the increase in C 18 : 3 n-3 in FS and FS + AG milk. Milk from FS + AG resulted in the highest n-3/n-6 ratio and decreases in atherogenic and thrombogenic indices. The combination of seaweed Ascophyllum nodosum and flaxseed can be suggested as an adequate supplementation to sustain milk production and milk fatty acid profile of sheep during summer season.

Supplementation with whole cottonseed changes milk composition and milk fatty acid profile in dairy cows

2011 ◽  
Vol 51 (2) ◽  
pp. 95 ◽  
Author(s):  
O. Dayani ◽  
G. R. Ghorbani ◽  
A. K. Esmailizadeh
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Fatty Acid Profile ◽  
Milk Yield ◽  
Experimental Period ◽  
Milk Composition ◽  
Milk Fatty Acid ◽  
Whole Cottonseed

Eight multiparous Holstein cows in mid lactation (average days in milking of 160 ± 40) were used in a replicated 4 by 4 Latin square design, each experimental period lasting 3 weeks, to determine the effects of whole cottonseed (WCS) treatment and dietary crude protein (CP) concentration on the profile of milk fatty acids. Each 3-week experimental period consisted of 2 weeks for ration adaptation followed by 1 week for data collection. The experimental diets consisted of: (1) Control (without WCS), 16% CP; (2) 20% WCS, 16% CP; (3) 20% WCS, 13% CP; and (4) 20% crushed WCS, 13% CP. Minerals and vitamin supplements were the same in all experimental diets. The WCS treatment led to increased DM intake, fat-corrected milk yield, fat concentration, proportion of long-chain fatty acids, unsaturated fatty acids and ratio of unsaturated to saturated fatty acids (P < 0.05). Decreased concentration of dietary CP from 16 to 13% (diet 2 compared with diet 3) led to a decrease in both milk yield and milk composition (P < 0.05). WCS crushed in diets with 13% CP (diet 4 compared with diet 3) increased (P < 0.05) the concentration of conjugated linoleic acid in milk fat. The results demonstrated that adding WCS to the diet of lactating cows improves both milk yield and milk fatty acid profile, particularly the proportion of conjugated linoleic acid.

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