Milk performance of dairy cows supplemented with rape seed oil, peanut oil, and sunflower seed oil

Dai, Xiaojing; Wang, C.; Zhu, Qun

doi:10.17221/1434-cjas

Cited by 29 publications

(30 citation statements)

References 46 publications

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“…Some researcher reported that n-3 PUFA enriched supplemental fat resulted in a decrease in feed consumption, milk yield and milk fat depression in cows (Or-Rashid et al, 2008), however, in goats, others reported no effect (Zhang et al, 2006). While n-6 enriched diet (such as sunflower) unmodified or increased the milk composition in both species (Dai et al, 2011;Martínez et al, 2012). Several studies investigated the effects of diet, such as green forages (Tsiplakou et al, 2006;Pajor et al, 2009) or oilseeds (Brzóska, 2006) on fatty acids, however, data on feeding micro-alga supplements are limited (mainly in dairy cows and ewes, such as Boeckaert et al, 2008;Papadopoulos et al, 2002 andToral et al, 2010, respectively).…”

Section: Introductionmentioning

confidence: 99%

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

Póti¹,

Pajor

Bodnár

et al. 2015

Chilean J. Agric. Res.

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The microalgae cultivation has been developed over the last decades because it is capable of producing valuable metabolites, such as n-3 fatty acids for nutraceutical purposes. Aim of this study was to investigate the effect of the micro-alga as fat supplement on fatty acid profile of goat and cow milk, with particular reference to n-3 fatty acids and rumenic acid. Twenty dairy goats and 16 dairy cows were randomly allocated to two isonitrogenous treatment groups to investigate the effect of micro-alga supplementation on the composition and fatty acid profile of milk. The 1 st goat group was fed with alfalfa hay and concentrate; the 2 nd goat group received the same forages but the concentrate was supplemented with 10 g kg -1 DM intake micro-alga. The control group cows were fed with alfalfa hay, corn silage and concentrate, while the experimental animals were fed with the same forages but the concentrate was supplemented with 7.4 g kg -1 DM intake micro-alga. The experimental periods lasted for 17 d. The micro-alga supplements considerably increased rumenic acid concentration in milk (1.20% vs. 1.54%, P < 0.001 for goats; 0.75% vs. 0.85%, P < 0.05 for cows). The n-3 fatty acids were higher in milk (1.02 vs. 1.35; P < 0.001 for goats; 0.47 vs. 0.56; P < 0.05 for cows) and in addition the n-6/n-3 ratio was also more favorable in the micro-alga supplemented groups (3.53 vs. 2.88; P < 0.01 for goats; 4.18 vs. 3.36; P < 0.05 for cows). It is concluded that the diet with micro-alga supplementation significantly increased the concentration of beneficial fatty acids in both goat and cow milk.

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Section: Introductionmentioning

confidence: 99%

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

Póti¹,

Pajor

Bodnár

et al. 2015

Chilean J. Agric. Res.

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“…Zootec., 45(11):693-703, 2016 Bremmer et al, 1998). However, Ueda et al (2003), Zheng et al (2005), Dai et al (2011), andBenchaar et al (2012) found no effect on dry matter intake with the addition of different sources and levels of lipids in TMR systems. In their review on fat supplementation to grazing dairy cattle, Schroeder et al (2004) and Bargo et al (2003) found no effect of supplementation with lipids on dry matter intake in grazing dairy cattle.…”

Section: Discussionmentioning

confidence: 97%

Supplementation with corn oil and palm kernel oil to grazing cows: ruminal fermentation, milk yield, and fatty acid profile

2016

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-The effect of supplementation with corn oil (CO) and its mixture with palm kernel oil (CO:PKO 75:25) to grazing cows on ruminal fermentation, milk yield, and its fatty acid (FA) profile was evaluated. The treatments were: one control treatment (C) without oil and two treatments with 720 g d −1 /cow of CO or CO:PKO (ether extract: 22.7 g kg −1 for control treatment, 66 g kg −1 for CO, and 65 g kg −1 for CO:PKO). Six multiparous Holstein cows (6.3±1.8 yr, 597±11.5 kg body weight (BW), 160±29 d in milk; mean ± standard deviation) were assigned to a double 3 × 3 × 3 Latin square design. Cows grazed (3 kg DM/100 kg BW) a Cenchrus clandestinus (previously Pennisetum clandestinum) pasture and were supplemented with 0.9 kg d −1 DM corn silage, 4.2 kg d −1 DM concentrate, and 9 g Cr 2 O 3 . The mixture of concentrate and oils was offered twice a day. The addition of oils increased milk yield (kg d −1 ) (C: 21.4, CO: 23.6, CO:PKO: 23.9) and milk fat concentration (g kg milk −1 ) (C: 31.5, CO: 34.0, CO:PKO: 34.0). Compared with control, conjugated linoleic acid (18:2 c9 t11 CLA) proportion (g 100 g −1 FA) in milk fat was higher for oil treatments (C: 0.68, CO: 1.56, CO:PKO: 1.01). Voluntary intake and digestibility were not different among treatments. The molar ratio of acetate, propionate, and butyrate was not different among treatments, but the molar concentration of volatile fatty acids (VFA) was lower for CO and CO:PKO, resulting in a lower estimated methane (CH 4 ) production (mL/100 mol VFA) for CO and CO:PKO treatments. Supplementing CO and CO:PKO to grazing dairy cows increases milk yield without affecting voluntary intake or diet digestibility. The proportion of conjugated linoleic acid increases more for CO than for CO:PKO.

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“…Although the effects of plant oils in animal nutrition have been already observed, for example on ruminal fermentation and protozoal populations (Majewska et al 2017) or milk performance in dairy cows (Dai et al 2011), only few studies have discussed the antibacterial activity of plant oils against pathogenic and commensal bacteria present in gastrointestinal tract (Lee et al 2015).…”

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confidence: 99%

Determination of in vitro antibacterial activity of plant oils containing medium-chain fatty acids against Gram-positive pathogenic and gut commensal bacteria

Hovorková¹,

Laloučková²,

Skřivanová³

2018

Czech J. Anim. Sci.

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Hovorková P., Laloučková K., Skřivanová E. (2018): Determination of in vitro antibacterial activity of plant oils containing medium-chain fatty acids against Gram-positive pathogenic and gut commensal bacteria. Czech J. Anim. Sci., 63, 119-125.Increasing antibiotic resistance has led to a ban on antibiotic use in feed additives in the EU. Therefore, new non-antibiotic, pathogen-inhibiting agents are urgently needed. Inhibitory effects of eight plant oils containing medium-chain fatty acids (MCFAs) were evaluated against Gram-positive pathogenic and beneficial bacteria. The oils tested were palm, red palm, palm kernel (Elaeis guineensis), coconut (Cocos nucifera), babassu (Attalea speciosa), murumuru (Astrocaryum murumuru), tucuma (Astrocaryum vulgare), and Cuphea oil (Cuphea ignea); the method used was broth microdilution, and the findings were expressed as minimum inhibitory concentration (80%). Both hydrolyzed and unhydrolyzed forms of the oils were tested. MCFA hydrolysis was catalyzed by porcine pancreas lipase. The selective effect of the hydrolyzed forms of tested oils was highly evident. While the hydrolyzed oils were active against all tested bacteria (Clostridium perfringens, Enterococcus cecorum, Listeria monocytogenes, and Staphylococcus aureus), at 0.14-4.5 mg/ml, the same oils did not show any effect on commensal bacteria (Bifidobacterium spp. and Lactobacillus spp.). Tucuma and Cuphea seed oils showed the strongest antibacterial activity. Unhydrolyzed forms of all tested oils exerted no antibacterial effect against any test bacteria. This study, thus, forms a basis for the development of selective inhibitors in animal husbandry.

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Milk performance of dairy cows supplemented with rape seed oil, peanut oil, and sunflower seed oil

Cited by 29 publications

References 46 publications

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

Effect of micro-alga supplementation on goat and cow milk fatty acid composition

Supplementation with corn oil and palm kernel oil to grazing cows: ruminal fermentation, milk yield, and fatty acid profile

Determination of in vitro antibacterial activity of plant oils containing medium-chain fatty acids against Gram-positive pathogenic and gut commensal bacteria

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