Effects of sucrose and sunflower oil addition to diet of Saanen dairy goats on performance and milk fatty acid profile

Razzaghi, A.; Valizadeh, Reza; Naserian, Abbas Ali; Mesgaran, M. Danesh; Rashidi, Ladan

doi:10.1016/j.livsci.2014.12.002

Cited by 13 publications

(21 citation statements)

References 52 publications

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“…In the current experiment, rumen fluid was only collected at one time point, and it is possible that these results are not representative of the whole day. The ruminal ammonia-N concentration in the current study was not affected by diets, which is in agreement with the results reported by as well as Razzaghi et al (2015). The total VFA concentration in the current study was not affected by sugar content.…”

Section: Ruminal Fermentationsupporting

confidence: 93%

“…Complete BH of UFA eliminates potential negative effects of specific BH intermediates (trans-fatty acid) on milk fat synthesis (Shingfield et al, 2010); therefore, sugar may be capable of mitigating the potential adverse effects on milk fat synthesis. However, Razzaghi et al (2015) failed to find enhancement of ruminal pH, milk fat concentration, and significant alterations in milk fatty acid profile when feeding SC (total sugar; 8.7% of DM) to dairy goats. Some evidence has been found for interactions between sunflower oil and carbohydrates in the diet.…”

Section: Introductionmentioning

confidence: 94%

“…Considering these observations, elevated rumen pH in the current study is somewhat surprising; however, this is consistent with findings by other authors. A few studies have reported that replacing a dietary starch source with sugars tended to increase or decrease (Razzaghi et al, 2015) or have no effect on rumen pH (Broderick et al, 2008;Oelker et al, 2009). According to a review by Oba (2011), the majority of in vivo studies reported that rumen pH is not affected by feeding sugars.…”

Section: Ruminal Fermentationmentioning

confidence: 99%

“…Thus, feeding vegetable oils or oilseeds to dairy cows may reduce the milk fat concentration and yield. Studies in ruminants have shown that inclusion of sunflower oil in the diet increases both cis-9,trans-11 18:2 and trans-11 18:1 content in milk (Roy et al, 2006) at the expense of the short-and medium-chain fatty acids (Glasser et al, 2008;Razzaghi et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Effect of dietary sugar concentration and sunflower seed supplementation on lactation performance, ruminal fermentation, milk fatty acid profile, and blood metabolites of dairy cows

Razzaghi

Valizadeh

Naserian

et al. 2016

Journal of Dairy Science

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Previous research has shown that both sunflower seed (SF) and sucrose (SC) supplementation can result in variation in milk fat concentration and composition, possibly due to altered fermentation patterns and biohydrogenation of fatty acids in the rumen. The objective of this study was to determine the effects of different sugar concentrations with or without SF supplementation on lactation performance, ruminal fermentation, and milk fatty acid profile in lactating dairy cows. Eight multiparous Holstein dairy cows (body weight=620±15kg, 60±10 d in milk, mean ± standard deviation) were randomly assigned to treatments in a replicated 4×4 Latin square design with a 2×2 factorial arrangement of treatments. Each 21-d period consisted of a 14-d diet adaptation period and 7-d collection period. Dairy cows were fed 1 of the following 4 diets: (1) no additional SC without SF supplementation (NSC-SF), (2) no additional SC with SF supplementation (NSC+SF), (3) SC without SF supplementation (SC-SF), and (4) SC with SF supplementation (SC+SF). The diets contained the same amount of forages (corn silage and alfalfa hay). Four isonitrogenous and isoenergetic diets were formulated by replacing corn grain with SC and SF and balanced using change in proportions of canola meal and sugar beet pulp. No interaction was detected between SC and SF supplementation with respect to dry matter intake, milk yield, and composition. A tendency was found for an interaction between inclusion of SC and SF on energy-corrected milk with the highest amount in the SC-SF diet. Ruminal pH and the molar proportion of acetate were affected by SC inclusion, with an increase related to the SC-SF diet. Diets containing SF decreased the concentrations of short-chain fatty acids (4:0 to 10:0) and medium-chain fatty acids (12:0 to 16:0) in milk fat. The addition of SC tended to decrease the concentration of total trans-18:1. These data provide evidence that exchanging SC for corn at 4% of dietary dry matter influenced milk fat content and rumen pH, resulting in a tendency for decreased concentration of trans-18:1 in milk fat. Sucrose alone did not alter the milk fatty acid profile when cows were fed a combination of unsaturated fat and sugar, although several significant interactions between sugar and unsaturated fat were observed.

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Section: Ruminal Fermentationsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 94%

Section: Ruminal Fermentationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of dietary sugar concentration and sunflower seed supplementation on lactation performance, ruminal fermentation, milk fatty acid profile, and blood metabolites of dairy cows

Razzaghi

Valizadeh

Naserian

et al. 2016

Journal of Dairy Science

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“…Recently in congruence with our results,Razzaghi et al (2014) reported that feeding sucrose to Saanen dairy goats decreased ruminal pH in comparison to the control diet.…”

supporting

confidence: 93%

The effect of feeding low quality date palm (Phoenix dactylifera L.) on the performance, antioxidant status and ruminal fermentation of mid-lactating Saanen dairy goats

Sharifi

Bashtani

Naserian

et al. 2015

Small Ruminant Research

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The Dietary Addition of Fish Oil or Sunflower Oil Plus Starch Differently Modulates the Lipid Classes in Plasma of Lactating Cows and Goats

Delavaud

Fougère

Chilliard

et al. 2019

Euro J Lipid Sci & Tech

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Plasma lipid content and composition are studied in dairy cows and goats fed similar diets inducing milk fat depression (MFD) only in cows. Twelve cows and 15 goats are fed a diet without additional lipids (control), or supplemented with fish oil (FO), or supplemented with sunflower oil plus starch (SOS) in a 3 × 3 Latin square design. A high‐performance thin‐layer chromatography (HP‐TLC) methodology is used to separate and quantify the following plasma lipid classes: cholesterol esters (CE), triglycerides (TG), free fatty acids (FFA), cholesterol (Chol), and phospholipids (PL). The plasma lipid composition reveales that TG concentration is 193% higher in the goats compared to the cows. For cows and goats, FO increases CE (+31%) and Chol levels (+33.7%) compared to the control. The TG concentration is differentially regulated by FO between cows (−23.5%) and goats (no change). In the goats, SOS increases CE (+25.7%), Chol (+46.7%), and FFA levels (+71.7%) compared to the control. These results suggest the existence of different mechanisms of lipid digestion, absorption, and transport between cows and goats and contribute to better understand the differences in the regulation of milk fat secretion responses to lipid supplementation between cows and goats. Practical Applications: A robust HP‐TLC methodology for plasma lipid separation and analysis in automated and reproducible conditions is developed which constitutes an original part of the present study. It has been shown that intake of plant‐derived lipids associated with starch‐rich diets decreases the milk fat content in cows but not in goats. Therefore, the direct species comparison model used in the present study constitutes an interesting tool to compare the responses of plasma lipid concentrations and FA composition in cows and goats fed fish oil or sunflower oil and starch supplemented diets. The direct comparison between cows and goats in plasma lipid class composition is reported for the first time in the present study, with in addition new information about the contribution of intermediary metabolism to differences between the two species in the regulation of milk fat secretion in response to lipid supplementation. Direct comparisons of plasma lipid classes between dairy cows and goats fed similar diets is studied using high‐performance thin‐layer chromatography (HP‐TLC) methodology and demonstrates significantly higher concentration of triglycerides (TG) in plasma of goats compared to cows, whereas the total analyzed lipid content is higher in cows than in goats. In addition, for both species, diets supplemented with fish oil or sunflower oil plus starch modulates the composition in plasma lipid classes.

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Effects of sucrose and sunflower oil addition to diet of Saanen dairy goats on performance and milk fatty acid profile

Cited by 13 publications

References 52 publications

Effect of dietary sugar concentration and sunflower seed supplementation on lactation performance, ruminal fermentation, milk fatty acid profile, and blood metabolites of dairy cows

Effect of dietary sugar concentration and sunflower seed supplementation on lactation performance, ruminal fermentation, milk fatty acid profile, and blood metabolites of dairy cows

The effect of feeding low quality date palm (Phoenix dactylifera L.) on the performance, antioxidant status and ruminal fermentation of mid-lactating Saanen dairy goats

The Dietary Addition of Fish Oil or Sunflower Oil Plus Starch Differently Modulates the Lipid Classes in Plasma of Lactating Cows and Goats

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