Partial replacement of corn grain with calcium salts of fatty acid in the concentrate fed to grazing primiparous and multiparous dairy cows

Schroeder, G.F.; Gagliostro, Gerardo Antonio

doi:10.1080/00288230709510311

Cited by 2 publications

(2 citation statements)

References 23 publications

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“…In our trial, milk RA content in oil supplemented cows (2.33 to 3.24 g/100g) were higher than values reported in the meta-analysis by [28] when cows were suplemented with SO (1.02 ± 0.36 g/100g FA) or LO (1.75 ± 0.84 g/100g FA) and also to those obtained by [61] supplementing with 500 g/day of sunflower oil or SO (2.02 gRA/100g FA) to grazing dairy cows. They were also higher than observed in [62] using 0.9 kg/day of FA calcium salts (0.9 kg/cow/day ) containing 30% linoleic acid but close to those reported in [55] (3.13 g/100 g for AR) using the mixture SO70:LO30 (0.7 kg/cow.day) in grazing dairy cows.…”

Section: Milk Fatty Acid Profilementioning

confidence: 52%

Effects of Feeding Combinations of Soybean and Linseed Oils on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

Antonacci¹,

Gagliostro²,

Cano³

et al. 2017

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Thirty-six grazing dairy cows were used to determine the effect of combinations of soybean (SO), and linseed (LO) oils on milk production, composition and milk fatty acid (FA) profile. Treatments were a basal control diet (56% pasture, 44% concentrate) or the control diet supplemented with oils at 4% of estimated total dry matter (DM) intake. Oils were manually mixed to the concentrate in pure forms (SO100 or LO100) or in blends (%w/w) at SO75 -LO25, SO50 -LO50 and SO25 -LO75. Concentrate and oils were thoroughly consumed. Pasture intake (kg DM/cow•day) was 9.27 in control and decreased (p < 0.05) in SO25 -LO75 (8.09) and LO100 (8.98). Total DM intake (kg/cow•day) in control (16.47) increased (p < 0.05) to 17.04 in SO100 and 17.20 in SO75. Yield of fat corrected milk (4% FCM) averaged 20.73 kg in control resulting higher in SO75 (23.73 kg). Milk fat content (g/100g) in control averaged 3.40 and decreased to 2.79 in SO50-LO50 and to 3.06 in SO25 -LO75 treatments. Milk protein content was not affected and milk protein yield increased in SO100 (11%) and SO75 -LO25 (21%) . Results obtained confirmed a great milk fat plasticity in response to PUFA feeding in grazing dairy cows which constitutes a very effective and easy tool in order to improve the healthy value of milk with a potential benefit to the consumer's health. A net or conclusive response pattern over parameters that improve the healthy value of milk to soybean and linseed oils and their blends was not clearly detected. Taken together, the results suggest some advantage for the SO75:LO25 blend considering the relative costs of both oils, the positive effects on milk, fat and protein yields, the lower hypercholesterolemic FA content of milk and the increase in VA and RA content while maintaining a healthy n − 6/n − 3 ratio and very low levels of the detrimental trans-9 C18:1 and trans-10 C18:1 FA.

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Section: Milk Fatty Acid Profilementioning

confidence: 52%

Effects of Feeding Combinations of Soybean and Linseed Oils on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

Antonacci¹,

Gagliostro²,

Cano³

et al. 2017

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“…In line with this result, the milk fat concentration was lower (−7.0 g•kg −1 , 21% reduction) in grazing cows supplemented with unsaturated FA calcium salts (0.7 kg•day −1 ) both in multiparous as in primiparous cows [35]. In addition, the fat content of milk was reduced (−8.8%) in alfalfa-grazing multiparous cows that consumed 0.9 kg•day −1 of unsaturated FA calcium salts in comparison with Control cows (32.2 vs. 35.3 g•kg −1 ); an effect not found in primiparous cows [37].…”

Section: Milk Production and Compositionmentioning

confidence: 99%

Feeding Calcium Salts of Linseed Oil on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

González¹,

Iorio²,

Olmeda³

et al. 2020

OJAS

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The objective of this study was to determine the effect of supplying calcium salts of linseed oil (Ca-FA) rich in omega-3 (α-linolenic acid) on the production and chemical composition of milk and its nutraceutical value in dairy cows in early lactation. The trial lasted 12 weeks (2 weeks for adaptation to lipids and 10 weeks of data collection). A total of 36 Holstein dairy cows with 58.0 ± 17.0 days in milk (DIM), 594.1 ± 92.4 kg BW, 2.6 ± 1.5 parity and 38.9 ± 9.3 kg milk day −1 were used in a randomized complete block design. The treatments were: 1) Omega-3 (O3): 5.2 kg DM day −1 of concentrate including 0.7 kg DM of Ca-FA + 13.5 kg DM day −1 of partial mixed ration (PMR) + 12 kg DM day −1 of alfalfa pasture (Medicago sativa) and 2) Control (C): diet similar to O3 but lipid supplementation was replaced by cracked corn grain so that the diets were isoenergetic. No treatment effect was detected (P > 0.05) for any milk production and composition variables, except for urea in milk that was slightly higher in O3 (P = 0.02). The treatment × week interaction was significant (P < 0.05) for fat yield and content, with differences (P < 0.01) only in the 3rd week of the data collection period in favor of group C (1.39 vs. 1.13 kg•day −1 and 3.86% vs. 3.23% for fat yield and content, respectively). Total DMI and PMR were similar (P > 0.05) between treatments. Concentrate intake was higher (P < 0.01) in C compared with O3. Pasture DMI tended (P = 0.06) to be greater for cows that received the O3 treatment compared with C. Total metabolizable energy (ME) intake was similar (P = 0.44) between treatments. No treatment effect was detected (P > 0.05

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Partial replacement of corn grain with calcium salts of fatty acid in the concentrate fed to grazing primiparous and multiparous dairy cows

Cited by 2 publications

References 23 publications

Effects of Feeding Combinations of Soybean and Linseed Oils on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

Effects of Feeding Combinations of Soybean and Linseed Oils on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

Feeding Calcium Salts of Linseed Oil on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows

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