Effects of live yeast supplementation on mid-lactation dairy cows performances, milk composition, rumen digestion and plasma metabolites during hot season

Dehghan-Banadaky, M.; Ebrahimi, Mahdi; Motameny, R.; Heidari, Shahin

doi:10.1080/09712119.2012.739085

Cited by 40 publications

(43 citation statements)

References 32 publications

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“…The effects of LY can be considered positive factors for the growth of anaerobic bacteria and thus for digestion in the rumen, which in turn stimulates voluntary food intake and the nutrient supply to the animals, thereby promoting animal performance [12]. Similar to our results, neither Shwartz et al [33] nor Dehghan-Banadaky et al [9] observed any significant effect of LY supplementation on milk yield in lactating cows under heat stress. In contrast, another study reported that the milk yield and the milk protein yield and percentage increased with supplementation of LY [29].…”

Section: Discussionsupporting

confidence: 81%

“…A significant increase [9] and increased trends in plasma glucose concentrations [31] have been previously observed in dairy cows supplemented with LY during hot summer conditions. Miller-Webster et al [22] reported that supplementing diets with yeast culture products increased dry matter digestion, total volatile fatty acid (VFA) production, and propionic acid production in continuous cultures.…”

Section: Discussionmentioning

confidence: 67%

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Effects of live yeast supplementation on serum oxidative stress biomarkers and lactation performance in dairy cows during summer

Mirzad

Gotō²,

Endo³

et al. 2019

The Journal of Veterinary Medical Science

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This study aimed to evaluate the effects of live yeast (Saccharomyces cerevisiae) (LY) supplementation on serum oxidative stress biomarkers, antioxidant vitamin levels, and lactation performance in dairy cows during summer. A total of 16 lactating cows weighing 707.5 ± 13.1 kg (mean ± standard error) were enrolled and randomly assigned to either supplemented (n = 8) or control group (n = 8). In the supplemented group, the cows were administered with LY product at 10 g/day per cow from mid-July to mid-September for 8 weeks. The serum levels of derivatives of reactive oxygen metabolites in the supplemented group were lower (P < 0.05) at week 6. The serum retinol and blood glucose concentrations in the supplemented group were higher (P < 0.01) at week 8. LY supplementation did not affect physiological responses, such as rectal temperature, respiratory rate, protein and cholesterol metabolism, and lactation performance. During the study period, daily average milk yield decreased in both groups. The reduction rates of milk yield in the supplemented and control groups were 17.6 and 20.0%, respectively. These results suggest that LY supplementation may reduce oxidative stress and improve carbohydrate metabolism in lactating dairy cows during summer.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 67%

Effects of live yeast supplementation on serum oxidative stress biomarkers and lactation performance in dairy cows during summer

Mirzad

Gotō²,

Endo³

et al. 2019

The Journal of Veterinary Medical Science

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“…Di Contanzo et al (1997) reported an increase in plasma glucose content of dairy cows when niacin was fed during heat stress. Dehghan-Banadaky et al (2013) also reported an increase in plasma glucose content when dairy cows under heat stress were supplemented with live yeast. Cows in heat stress have increased reliance on glucose as an energy source .…”

Section: Discussionmentioning

confidence: 90%

Response of lactating cows to live yeast supplementation during summer

Salvati

Júnior

Melo

et al. 2015

Journal of Dairy Science

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Dairy cows experiencing heat stress have reduced intake and increased reliance on glucose, making feeding strategies capable of improving diet digestibility plausible for improving postrumen nutrient flow and performance. The effect of yeast on digestion and performance of lactating cows during the warm summer months of southeastern Brazil was evaluated. Cows were individually fed in tie stalls and temperature-humidity index was above 68 during 75.6% of the experiment. Twenty-eight Holstein cows (207±87 d in milk) received a standard diet for 14 d and then a treatment for 70 d, in a covariate-adjusted, randomized block design with repeated measures over time. Treatments were yeast (Saccharomyces cerevisiae) or control. Yeast was top dressed to the diet in the morning, equivalent to 25×10(10) cfu of live cells and 5×10(10) cfu of dead cells. The diet contained corn silage (37.7%), Tifton silage (7.1%), raw soybeans (4.1%), soybean meal (16.5%), finely ground corn (20.7%), and citrus pulp (11.9%). Yeast increased milk (26.7 vs. 25.4 kg/d) and solids yield (3.06 vs. 2.92 kg/d), especially lactose. Response in milk yield was consistent over time and started at d 5. The daily intake of digestible OM, total-tract digestibility of nutrients, urinary allantoin excretion, chewing pattern throughout the day, and dry matter intake did not respond to yeast. A trend was observed for increased plasma glucose with yeast (62.9 vs. 57.3mg/dL), lowered respiratory frequency (48 vs. 56 breaths/min), and increased plasma niacin content (1.31 vs. 1.22 µg/mL), though cows had similar rectal temperature. Ruminal lactate and butyrate as proportions of ruminal organic acids were reduced by yeast, but no effects on other organic acids, ruminal pH, or protozoa content were detected. Plasma urea N over 24h was increased by yeast. On d 72 to 74, citrus pulp was abruptly replaced with finely ground corn to induce acidosis. The increased load of starch increased dry matter intake between 0700 and 1300 h, jugular blood partial pressure of CO2, HCO3-, and base excess, and decreased blood pH for both treatments. The yeast treatment had a higher blood pH compared with the control, 7.34, and 7.31, respectively. Yeast supplementation improved lactation performance of dairy cows under heat stress. Improvement in lactation performance apparently involved the regulation of body homeothermia, rather than improved digestibility.

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“…While table (8 and 10) showed there are not significant increase between groups and periods of Lymphocyte and granulocyte percentage. However, table (9) showed that the third period in the G3 was significant increase (P≤0.05) in the monocyte percentage compared with first period.…”

Section: Resultsmentioning

confidence: 87%

“…From other hand, yeast improvement the body weight and feed conversion efficiency and carcass traits (8). Several studies have shown beneficial ( 9)." Zinc is a nutritionally essential trace element for animals, as it assumes critical role for ensuring proper feed intake and nutrient utilization, skeletal and growth development, skin and hair integrity, nutrient metabolism, reproduction, and immunity (10; 11; 12; 13).…”

Section: Introductionmentioning

confidence: 99%

Effect of Yeast (Saccharomyces cerevisiae) Enhanced with Selenium or Zinc on the Hematological Characteristics in Iraqi Does

2019

AJVS

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This study was conducted to investigate the effect of yeast (Saccharomyces cerevisiae) enhanced with Selenium or Zinc on some hematological characteristics in the Iraqi female goats. The seventeen adult female goats 2-2.5 years old with average body weight (bw) 37.5 ± 2.5 kg that have at least one previous birth were used. The animals were randomly divided in to three groups, group 1 have 5 goats, group 2 and 3 have six goats. all doesss were fed same ration. Animals of group 1 (G1) were let without treatment which considered as a control group, Animals of group 2 (G2) was given yeast enriched with selenium (0.03 g/kg/bw), While Animals of group 3 (G3) were given yeast enriched with zinc (0.2 g/kg/bw). The animals were treated by dissolving the samples in 30 ml of distilled water and administered orally for 45 days. Blood samples were collected from the jugular vein during first day (first period), twelfth day (second period) fort- fifth day (third period) to carrying out blood tests. The results showed was significant increase (P≤0.05) in the count of the red blood cells, hemoglobin concentration and Hematocrit of second and third groups as compared with first group. While the second group was significant increase in the number of white blood cells compared with the first and third groups. From the results, it could be concluded that there synergistic effect of Saccharomyces cerevisiae with selenium or zinc may be attributed to improve some hematological aspects in does.

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Effects of live yeast supplementation on mid-lactation dairy cows performances, milk composition, rumen digestion and plasma metabolites during hot season

Cited by 40 publications

References 32 publications

Effects of live yeast supplementation on serum oxidative stress biomarkers and lactation performance in dairy cows during summer

Effects of live yeast supplementation on serum oxidative stress biomarkers and lactation performance in dairy cows during summer

Response of lactating cows to live yeast supplementation during summer

Effect of Yeast (Saccharomyces cerevisiae) Enhanced with Selenium or Zinc on the Hematological Characteristics in Iraqi Does

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