Whole sunflower seeds as a source of polyunsaturated fatty acids for grazing dairy cows: Effects on metabolic profiles and resumption of postpartum ovarian cyclicity

Mendoza, Alejandro; Manna, Alejandro La; Crespi, D.; Crowe, M.A.; Cavestany, D.

doi:10.1016/j.livsci.2008.04.005

Cited by 9 publications

(5 citation statements)

References 38 publications

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“…Our results on BHBA (Figure 2(C) and Table 3) are in line with Mendoza et al (2008) who notated that dietary supplementation with whole sunflower seeds (rich in PUFA) tended to increase BHBA concentrations in grazing dairy cows. However, Alizadeh et al (2010) reported a linear decline in blood BHBA when cows at the early stage of lactation were fed diets supplemented with safflower seeds (1.4 kg per cow per day).…”

Section: Discussionsupporting

confidence: 89%

Treatment and post-treatment effects of dietary supplementation with safflower oil and linseed oil on milk components and blood metabolites of Canadian Holstein cows

Ammah

Benchaar

Bissonnette

et al. 2018

Journal of Applied Animal Research

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The treatment and residual effects of linseed oil (LSO) and safflower oil (SFO) supplementation on milk and blood metabolites of cows was investigated. Twenty-six cows were grouped according to parity and days in milk and assigned equally to one of two treatments: a control diet + 5%SFO or 5%LSO for 28 days (treatment period, TP). The TP was preceded by a control period of 28 days (all animals on control diet). After treatment, animals were returned to control diet for 28 days (posttreatment period, PTP). Blood and milk samples were collected weekly. Feed intake decreased with LSO and SFO (p <.05), while body weight (BW) increased steadily (p <.0001) throughout. Non-esterified fatty acid (NEFA) and triacylglyceride (TAG) increased (p <.0001) during treatments. Beta-hydroxybutyric acid increased (p <.0001) with SFO only. Milk urea nitrogen (MUN) and fat decreased (p <.0001) with both supplements. NEFA/MUN and milk fat content returned to control levels one week or three weeks after treatment, respectively. TAG did not return to initial concentrations by the end of PTP. The residual effects of feeding LSO or SFO on the physiology of cows were still active up to three weeks after cessation of treatments. ARTICLE HISTORY

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Section: Discussionsupporting

confidence: 89%

Treatment and post-treatment effects of dietary supplementation with safflower oil and linseed oil on milk components and blood metabolites of Canadian Holstein cows

Ammah

Benchaar

Bissonnette

et al. 2018

Journal of Applied Animal Research

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“…Mean plasma concentrations of TG, cholesterol, HDL, LDL, and VLDL and the LDL-to-HDL ratio were not significantly affected (P > 0.05) by prepartal fat level during the last 3 wk of gestation (Table 2). This agrees with the results of Mendoza et al (2008), who reported similar plasma cholesterol concentrations in grazing cows fed up to 1.4 kg of whole sunflower seed daily during the prepartal and postpartal periods. A significant time effect was detected for plasma concentrations of TG, cholesterol, HDL, and VLDL as a result of increased concentrations from d 21 prepartum up to calving (data not shown).…”

Section: Prepartal Performance and Plasma Concentration Of Metabolitessupporting

confidence: 92%

Effect of prepartal and postpartal dietary fat level on performance and plasma concentration of metabolites in transition dairy cows

Karimian

Khorvash

Forouzmand

et al. 2015

Journal of Dairy Science

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The objective of this study was to determine the effects of 2 levels of dietary fat (low and high) offered during the prepartal and postpartal periods on dry matter intake (DMI), plasma concentration of metabolites, and milk yield and composition. Twenty-four Holstein dry cows were assigned on d 21 relative to expected parturition date to 1 of 4 treatments in a 2×2 factorial arrangement of 2 levels of fat fed during the prepartal period and 2 levels of fat fed during the postpartal period: prepartal low fat and postpartal low fat (LF-LF), prepartal low fat and postpartal high fat (LF-HF), prepartal high fat and postpartal low fat (HF-LF), or prepartal high fat and postpartal high fat (HF-HF). Prepartal and postpartal LF diets contained no fat supplement. Prepartal HF diets contained 1.60% calcium salts of soybean oil. The proportion of calcium salts of soybean oil was increased to 1.70% of DM for the first 21 d of lactation and to 2.27% of DM from d 21 to 56 of lactation in the HF diet. Diets were fed for ad libitum intake from d 21 before calving until d 56 of gestation. Prepartal DMI was lower for cows fed the HF diet compared with those fed the LF diet (12.6 vs. 16.2kg/d). Postpartum, cows fed the HF-HF and HF-LF diets had, respectively, the lowest and highest DMI, although no significant differences existed between HF-LF and LF-LF. Net energy intake was higher for cows fed the postpartal HF diets compared with those fed the LF diets. Prepartal fat level had no effect on net energy intake. Cows offered the prepartal HF diet had higher milk yield when offered the postpartal LF diet compared with those offered the postpartal HF diet and no effect of the postpartal fat level was detected when cows were fed the prepartal LF diet. Milk composition was similar among treatments. Plasma cholesterol concentration postpartum was higher for cows fed the prepartal LF diet than for those fed the prepartal HF diet (5.16 vs. 3.74mmol/L) and postpartal fat level had no effect. Prepartal diet had no significant effect on postpartal plasma triglyceride concentration but the postpartal HF diet increased triglyceride and low-density lipoprotein concentrations compared with the postpartal LF diet. In conclusion, switching from a high to a low fat proportion in the postpartal diet may alleviate the negative effects of a high proportion of fat in the prepartal diet as shown by increased feed intake and milk production during the first 56 d of lactation.

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“…The sunflower (Helianthus annuus), in both seed and cake forms, has become an alternative feed for ruminants due to its high levels of protein and energy, and the effects of the addition of sunflower products to the diets of ruminants have been studied by several researchers (Mendoza et al, 2008). According to Oliveira et al (2007), the sunflower cake can be considered a protein concentrate food (>20% crude protein) with high ruminal degradability of protein (>90%).…”

Section: Introductionmentioning

confidence: 99%

Performance of lambs fed alternative protein sources to soybean meal

et al. 2016

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-The objective of this study was to evaluate the effect of alternative protein sources (castor bean cake, sunflower cake, and sunflower seed) to soybean meal on the intake and performance of 40 lambs, initially weighing 19.8±1.84 kg, fed diets based on Tifton grass hay. The experimental design was completely randomized blocks. There were no differences in the nutrient intake of castor bean diets compared with soybean meal. The intake of nutrients in the sunflower cake and sunflower seed diets was decreased compared with soybean meal. The apparent digestibility coefficients of dry matter, organic matter, crude protein, and neutral detergent fiber of sunflower cake and sunflower seed diets were decreased compared with soybean meal. The average daily weight gain of animals fed the castor bean diet (0.190 kg) was not different from that of the animals fed the soybean meal diet (0.217 kg). The sunflower cake and sunflower seed diets provided less weight gain (0.171 and 0.135 kg d -1 , respectively) than soybean meal due to the lower nutrient intake. The hot carcass yield and true yield were not affected by the protein sources. The neck, ribs, and ham weights were similar in lambs fed soybean meal and castor bean cake diets. It is recommended to use castor bean as an alternative protein source in the diet of lambs.

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Whole sunflower seeds as a source of polyunsaturated fatty acids for grazing dairy cows: Effects on metabolic profiles and resumption of postpartum ovarian cyclicity

Cited by 9 publications

References 38 publications

Treatment and post-treatment effects of dietary supplementation with safflower oil and linseed oil on milk components and blood metabolites of Canadian Holstein cows

Treatment and post-treatment effects of dietary supplementation with safflower oil and linseed oil on milk components and blood metabolites of Canadian Holstein cows

Effect of prepartal and postpartal dietary fat level on performance and plasma concentration of metabolites in transition dairy cows

Performance of lambs fed alternative protein sources to soybean meal

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