Milk yield and composition in dairy cows fed a diet
with evening primrose (&lt;i&gt;Oenothera paradoxa&lt;/i&gt;)
full fat seeds or oil cake

Strzetelski, J.; Kowalczyk, J.; Stasiniewicz, T.; Lipiarska, E.; Osięgłowski, S.; Bilik, K.

doi:10.22358/jafs/68811/1999

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…Recent studies confirmed the possibility of increasing the concentration of unsaturated fatty acids in milk by providing cows unsaturated fats fed with plant seeds, soyabean, sunflower, and cotton seeds. Full fat oilseeds have mainly been used for dairy cows: whole sunflower seeds (Rafalowski and Park, 1982), whole cottonseeds (Coppock et al, 1987), evening primrose seeds (Oenoethera paradoxa) (Strzetelski et al, 1999), rape seeds (Murphy et al, 1987;Strzetelski et al, 1992Strzetelski et al, , 1998.…”

Section: Introductionmentioning

confidence: 99%

The effect of rolled rape seeds on milk composition and lactational responses

Nowak¹,

Potkański²

2000

J. Anim. Feed Sci.

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Forty-five multiparous cows (74-146 d after calving) were blocked into 3 groups of 15 animals on the basis of calving date and milk yield. Within each group the cows were allotted at random to treatment sequences in a 3x3 Latin square design. Cows were fed a ration composed of pasture, maize silage and meadow hay. Treatments were: control (CK), 6 kg concentrate without rolled rape seeds (WRS), MR-5 kg concentrate and 0.7 kg WRS and HR-4 kg concentrate and 1.4 kg WRS. The administration of 1.4 kg (HR) rolled rape seeds per cow insignificantly increased the daily milk yield by 1.2 kg and milk fat content. Supplemental fat tended to nonsignificantly decrease the percentage protein content in milk (CK, 3.10, MR, 3.03, HR, 3.04), but the total daily protein production was not affected by treatment. Rolled rape seeds affected the fatty acid composition of milk fat. There was a significant (PO.05) increase of C 18:1 and C 18:3 content as a result of adding WRS, but no effect on C 18:2 concentration.

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Section: Introductionmentioning

confidence: 99%

The effect of rolled rape seeds on milk composition and lactational responses

Nowak¹,

Potkański²

2000

J. Anim. Feed Sci.

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“…Murphy et al (1990) reported a significant increase in cow performance as a result of including 15% ground rape seeds into the concentrate and no significant effect of whole rape seeds. Strzetelski et al (1999) reported a tendency to supplement cows' diets with evening primrose seeds (Oenothera paradoxa) to increase milk production and fat content. Also Nowak and Potkanski (2000) recorded a non-significant increase in the yield of milk after the addition of 1.4 rolled rape seed.…”

Section: Discussionmentioning

confidence: 99%

Effect of milk thistle (<i>Sylibum marianum</i> L.) endosperm in the diet for cows on milk yield and fatty acid profiles

Potkański¹,

Kowalczyk²,

Nowak³

et al. 2001

J. Anim. Feed Sci.

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The experiment was carried out on 30 multiparous Black-and-White Lowland cows from 45 to 70 days of lactation, divided into three groups according to calving date and milk yield, and fed a basic ration consisting of maize, grass and sugar beet pulp silages with concentrate for the control group. In both of experimental groups, 20% of concentrate was substituted with endosperm from milk thistle {Sylibum marianum L.) and 3% of calcium carbonate, but in one of the experimental groups, 1.5% of buffering sodium carbonate was additionally added to the concentrate mixture. Endosperm of milk thistle contained 23% fat with a high proportion of unsaturated fatty acids.

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“…However, few studies on the effects of the sources of GLA on rumen fermentation characteristics are available (Mustafa et al. 1997; Strzetelski et al. 1998a,b, 1999).…”

Section: Introductionmentioning

confidence: 99%

Effects of prefermented cereal-derived substrates (ground barley and rye bran) enriched with fungal γ-linolenic acid on rumen fermentation parameters and lipid metabolism in vitro

Laho¹,

Váradyová²,

Mihaliková³

et al. 2011

Journal of Applied Microbiology

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Aims: To increase rumen output of γ‐linolenic acid (GLA), we used two cereal‐derived substrates, ground barley (GB) and rye bran (RB), enriched with fungal GLA as components of feed rations. We examined their effects on rumen fermentation patterns, lipid metabolism and the ciliated protozoan population in an artificial rumen. Methods and Results: Four diets consisting of meadow hay (MH) plus unfermented (GB or RB) or prefermented (GB − TE or RB − TE) cereal‐derived substrates were fermented in an artificial rumen with ovine rumen inoculum. The cereal‐derived substrates were prefermented with the fungus Thamnidium elegans (TE) by fungal solid‐state fermentation. The diets with TE increased the rumen input of dietary GLA (mg day−1) from 0 to 21 (GB − TE) or 26 (RB − TE). Both experimental diets increased the rumen output of GLA (P < 0·001). Adverse effects on the ciliate population were observed. Both diets also had an effect on the fatty acids profile. Fermentation patterns were also affected with MH + RB − TE. Conclusion: Cereal‐derived substrates enriched with GLA effectively enhanced the output of GLA in artificial rumen. Significance and Impact of the Study: The ability of the fungal strain T. elegans to grow and utilize various agro‐industrial substrates might be useful in developing potential new animal diets enriched in GLA.

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Milk yield and composition in dairy cows fed a diet with evening primrose (<i>Oenothera paradoxa</i>) full fat seeds or oil cake

Cited by 4 publications

References 7 publications

The effect of rolled rape seeds on milk composition and lactational responses

The effect of rolled rape seeds on milk composition and lactational responses

Effect of milk thistle (<i>Sylibum marianum</i> L.) endosperm in the diet for cows on milk yield and fatty acid profiles

Effects of prefermented cereal-derived substrates (ground barley and rye bran) enriched with fungal γ-linolenic acid on rumen fermentation parameters and lipid metabolism in vitro

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