Effect of dietary soybean or sunflower seeds on milk production, milk fatty acid profile and yield of conjugated linoleic acid

2004 ◽  
Vol 84 (1) ◽  
pp. 113-124 ◽  
Author(s):  
O. Dayani ◽  
G. Ghorbani ◽  
T. Entz ◽  
C. M. Ross ◽  
M. A. Shah ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Dairy Cows ◽  
Conjugated Linoleic Acid ◽  
Sunflower Seed ◽  
Dry Matter ◽  
Experimental Period ◽  
Barley Grain ◽  
Sunflower Seeds ◽  
Barley Silage

Eight cows in mid-lactation were used to determine the effects of feeding diets containing soybeans (SBS) or sunflower seed (SFS) on conjugated linoleic acid (CLA) yield and concentration in milk during two 3-wk periods. All cows were fed a standard pre-trial diet for 2 wk, before assignment to treatment diets in both periods of the 2 × 2 cross-over design used in the study. The two treatment diets contained on a dry matter (DM) basis: (1) SBS: 20% barley silage, 34.7% barley grain, 30% alfalfa cube, 13% crushed soybean seed and 0.36% sunflower oil, and (2) SFS: 17% barley silage, 34.6% barley grain, 40% sunflower seed incorporated into alfalfa cubes (cubes comprised 18% whole sunflower seed and 82% alfalfa hay), and 6.5% heat-treated soybean meal. The ingredients in the two diets were adjusted so that they would provide similar levels of energy (1.5 MCal kg-1) and have similar nutrient composition with regard to protein (16.7%), ether extract (5.2%) and fibre components (41%). Milk samples were collected, on 2 d prior to initiation of treatment diets and on days 6, 7, 13, 1 4, 20 and 21 of each experimental period. Cholecystokinin and insulin concentrations in blood samples collected at the start and end of each experimental period indicated no significant differences. Dry matter and net energy intake of cows fed the SBS and SFS were 23.3 and 21.4 ± 0.9 kg d-1; 34.4 and 31.6 ± 1.4 Mcal d-1, respectively, and in vitro volatile fatty acid concentration after 24 h of incubation was 123.3 and 114.7 ± 1.3 mM, respectively, and lower (P < 0.05) for the SFS diet. Milk, milk fat, protein and lactose yields from cows fed the SBS and SFS diets were similar (32.9 and 32.0 ± 2.4; 1.10 and 0.97 ± 0.07; 1.05 and 1.00 ± 0.05; 1.46 and 1.39 ± 0.12, respectively), but the CLA cis-9, trans-11 concentrations in the milk from cows fed the SBS and SFS diets were 4.05 and 7.28 mg g-1 of lipid and resulted in 66% higher (P < 0.01) CLA yield (g d-1) in milk for cows fed the SFS diet. This study confirmed that feeding sunflower seeds as a component of a hay cube increased CLA yield in the milk of dairy cows without affecting yields of other milk components. Key words: Dairy cows, sunflower, soybeans, milk production, conjugated linoleic acid

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.

Dietary supplementation with sunflower seeds and vitamin E for fattening lambs improves the fatty acid profile and oxidative stability of the Longissimus lumborum

2015 ◽  
Vol 55 (8) ◽  
pp. 1030 ◽  
Author(s):  
Fabiana Alves de Almeida ◽  
Américo Garcia da Silva Sobrinho ◽  
Gabriela Milani Manzi ◽  
Natália Ludmila Lins Lima ◽  
Viviane Endo ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Vitamin E ◽  
Chemical Composition ◽  
Lipid Oxidation ◽  
Fatty Acid Profile ◽  
Sunflower Seed ◽  
Basal Diet ◽  
Sunflower Seeds ◽  
Longissimus Lumborum

This study aimed to evaluate the effects of supplementation with sunflower seeds and vitamin E for fattening lambs, on the chemical composition, cholesterol, vitamin E level, fatty acid profile and lipid oxidation of meat from sheep. Four treatments were evaluated, as follows: SC – basal diet consisting of sugarcane + concentrate; SCS – basal diet supplemented with sunflower seed; SCE – basal diet supplemented with 1000 mg vitamin E; SCSE – basal diet supplemented with sunflower seed and 1000 mg vitamin E. The Longissimus lumborum muscle of 32 Ile de France lambs, which were slaughtered when their bodyweight reached 32 kg, was used. The chemical composition of the lamb meat was not significantly different (P > 0.05) between the treatments. Sunflower seed supplementation increased (P < 0.05) the levels of linoleic acid, vaccenic acid and conjugated linoleic acid. Inclusion of vitamin E in the diet increased (P < 0.05) the concentration of vitamin E in the meat while decreasing lipid oxidation. Considering the current demand for healthy foods, inclusion of sunflower seeds and vitamin E in the diet of sheep is a viable possibility.

scholarly journals Carcass and meat quality of lambs fed with sunflower seed or oil

2020 ◽  
Vol 9 (9) ◽  
pp. e682997667
Author(s):  
Marta Juliane Gasparini ◽  
Simone Fernanda Nedel Pertile ◽  
Rafaela Machado dos Santos ◽  
José Victor Pronievicz Barreto ◽  
Marilice Zundt ◽  
...  
Keyword(s):  
Sunflower Oil ◽  
Sunflower Seed ◽  
Dry Matter ◽  
Live Weight ◽  
Experimental Period ◽  
Sunflower Seeds ◽  
Ph Values ◽  
Santa Inês ◽  
High Level

The objective of this study was to compare the use of sunflower seeds and oil as a fat source in the diets of finishing lambs. Twelve crossbred Santa Inês × Dorper lambs, with an average initial weight of 22.10 ± 3.82 kg were housed in individual pens and divided into two treatments: diets with sunflower seeds or oil. The total diet of both groups contained 33% roughage (tifton grass hay 85) and 67% concentrate. The proportion of sunflower oil and seeds in the total dry matter of the diets was 1.83% and 5.51%, respectively for the treatments oil and seed. The experimental period lasted for 75 days. The animals were slaughtered when they reached an average live weight of 35 kg. The carcass and meat variables were not different between the treatments studied. The presence of oil or sunflower seeds in the diets, both with a high level of concentrate (67%), did not influence the pH values of the meat, with average values of 5.8 and 5.6, respectively. The use of 5.5% sunflower seed, or 1.8% sunflower oil, as fat sources in diets of crossbred Santa Inês X Dorper lambs in finishing, were effective to obtain quality meat and carcasses.

scholarly journals Dietary Fatty Acid Sources Affect Conjugated Linoleic Acid Concentrations in Milk from Lactating Dairy Cows

1998 ◽  
Vol 128 (5) ◽  
pp. 881-885 ◽  
Author(s):  
Miriam L. Kelly ◽  
Julie R. Berry ◽  
Debra A. Dwyer ◽  
J.M. Griinari ◽  
P. Yvan Chouinard ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linoleic Acid ◽  
Dairy Cows ◽  
Conjugated Linoleic Acid ◽  
Dietary Fatty Acid ◽  
Lactating Dairy Cows

Influence of different systems for feeding supplements to grazing dairy cows on milk fatty acid composition

2014 ◽  
Vol 81 (2) ◽  
pp. 156-163 ◽  
Author(s):  
Ghazal Akbaridoust ◽  
Tim Plozza ◽  
Victor C Trenerry ◽  
William J Wales ◽  
Martin J Auldist ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Fat ◽  
Dry Matter ◽  
Barley Grain ◽  
Milk Fatty Acid ◽  
Fat Yield ◽  
Grazing Dairy Cows ◽  
To Receive ◽  
Corn Grain

This study investigated the effects of different strategies for feeding supplements to grazing dairy cows on the proportions of fatty acids in milk. Two hundred and sixteen cows were fed supplementary grain and forage according to one of 3 different strategies; (1) Control: cows grazed perennial ryegrass pasture (14 kg dry matter/d) supplemented with milled barley grain fed in the milking parlour and pasture silage offered in the paddock; (2) Partial mixed ration 1 (PMR1): same pasture allotment and supplement as Control strategy, but the supplements presented as a mixed ration after each milking in feedpad, and; (3) Partial mixed ration 2 (PMR2): same pasture allotment, supplemented with a mixed ration of milled barley grain, alfalfa hay, corn silage and crushed corn grain fed in a feedpad. Within each strategy, cows were assigned to receive either 6, 8, 10 or 12 kg dry matter supplement/cow per d. Milk fatty acid proportions from cows fed Control and PMR1 strategies were similar and different from those fed PMR2, particularly at 10 to 12 kg dry matter supplement/cow per d. The reduction in milk fat yield and concentration in cows fed high amounts of supplement as Control and PMR1 was coincident with 4 × increase in 10t-18:1 proportion. The composition of the partial mixed ration (PMR) and the amount offered affected milk fatty acid proportions and milk fat content, however, the method of supplementation did not.

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