Influence of a feed additive containing vitamin B12 and yeast extract on milk production and body temperature of grazing dairy cows under high temperature-humidity index environment

Gandra, Jefferson Rodrigues; Takiya, Caio Seiti; Valle, Tiago A. Del; Orbach, N. D.; Ferraz, Igor R.; Oliveira, Euclides Reuter de; Goes, Rafael Henrique de Tonissi e Buschinelli de; Gandra, E.R.S.; Pereira, Thaís Lemos; Batista, J. D. O.; Araki, H.M.C.; Damiani, J.; Escobar, A

doi:10.1016/j.livsci.2019.01.012

Cited by 10 publications

(12 citation statements)

References 29 publications

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“…In the current study, LY use did not change the milk lactose content, probably because it did not contribute to more efficient metabolizable energy use, as reported by Erasmus et al [26]. This result from the current study matched those of Schingoethe et al [8] and Gandra et al [9], who found no significant difference in the percentage of lactose in milk from dairy cattle fed LY. In contrast, Moallem et al [2] found that cattle with yeast added to their diet had more lactose than the control group.…”

Section: Discussionsupporting

confidence: 86%

“…Also, Desnoyers et al [28], in a metaanalysis on S. cerevisiae supplementation, reported a higher milk yield (0.78 kg/day) for a 650-kg cow-equivalent. Several authors suggested that a milk yield increase is usually linked to an increased DMI and/or VFA concentration [9,10,12,28]. In this study, supplementation with LY tended to increase milk production compared with the control diet, but not as much as reported by the above mentioned authors.…”

Section: Discussioncontrasting

confidence: 47%

“…Moallem et al [2] reported a higher milk yield (1.5 kg/day) from 10 10 cfu of LY per 4 kg of DM consumed in comparison with the control. In addition, some authors [9,10,12] reported increases in milk production by cows fed LY that ranged from 0.7 to 3.06 kg/day. Also, Desnoyers et al [28], in a metaanalysis on S. cerevisiae supplementation, reported a higher milk yield (0.78 kg/day) for a 650-kg cow-equivalent.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, Moallem et al [2] reported that multiparous Holstein cows (average 114 DIM) fed LY under heat stress (mean THI values at 06:00 hours and 16:00 hours of 69.4 and 79.3, respectively) had both a higher DMI and greater milk yield by 1.5 kg/day (4.1%) than the control cows. In a similar study, Gandra et al [9] reported that LY administration during the middle of the lactation period improved the feed intake, milk production, and milk fat content and reduced the rectal temperature (RT) and respiration rate (RR) of cows that experienced a high mean THI value of 77.8. However, in some studies, the same positive responses were not demonstrated following supplementation with LY (S. cerevisiae).…”

Section: Introductionmentioning

confidence: 89%

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Effects of live yeast on the rumen fermentation parameters and milk performance of Simmental dairy cows during the hot season

Muruz¹,

Gül²

2020

Turk J Vet Anim Sci

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The effects of dietary supplementation with live yeast culture (LY) on the milk performance and rumen fermentation parameters of Simmental cows in the middle of lactation were examined under hot season conditions in 2019. The 28 cows, which were divided into two experimental groups of 14, were fed a controlled diet, with or without the addition of 5 g of LY per cow daily. The mean dry matter intake (DMI) and yield of milk in the LY group were greater by 0.25 kg/day and 0.42 kg/day, respectively, than for the control group. The yields of milk components and 4% fat corrected milk were also significantly greater in the LY group than in the control group, but LY supplementation did not significantly alter milk composition percentages. The acetate concentration in the rumen tended to be higher in cows fed LY but the ruminal pH, NH 3-N, propionate and butyrate levels, and acetate/propionate ratio were similar in the two groups. It can be concluded that LY supplementation of the diet of Simmental dairy cows during the hot season improved milk production and ruminal fermentation performance to a limited degree.

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Section: Discussionsupporting

confidence: 86%

Section: Discussioncontrasting

confidence: 47%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 89%

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Effects of live yeast on the rumen fermentation parameters and milk performance of Simmental dairy cows during the hot season

Muruz¹,

Gül²

2020

Turk J Vet Anim Sci

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“…The enzymatic activity was determined by adding 0.1 mL of enzymatic suspension (supernatant) to 0.9 mL of sodium acetate buffer (0.1M and pH 5.0). The measurement for glucoamylase activity is in accordance with Gandra et al (2019) and cellulase activity according to Nidetzky and Claeyssens (1994).…”

Section: Microbiological Quality and Enzymatic Activitymentioning

confidence: 99%

Effect of Amylolytic and Cellulolytic Enzymes on Whole Plant Corn Silage: Characteristics of Silage and Animal Digestion

Gandra

Nunes

Oliveira

et al. 2021

Preprint

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Enzyme additives have been added to forage at ensiling to improve nutritive value. The aim of this study was to evaluate effects of adding exogenous enzymes to silage on fermentative losses and profile, aerobic stability, chemical composition, in vitro degradation, microbial quality, and nutrients intake and digestibility. Treatments were control (CON); addition of exo-1,4-α-glycosidase glucoamylase (GLU; Kerazyme 3035, Kera Nutrição Animal, Bento Gonçalves, Brazil); addition of β-glucan 4-glucanhydrolase (CEL); and GLU + CEL. Data from the silo experiment were analyzed using PROC MIXED of SAS, with fixed effects of glucoamylase and cellulase, and interaction effect between them. In vivo experiment analyses also included fixed effect of Latin Square and period, and random effect of animal within Latin Square. CEL increased (P ≤ 0.038) gas losses and effluents production, CEL and GLU decreased (P = 0.039) DM recovery compared to control but not differ from GLU+CEL. CEL silage had higher (P ≤ 0.021) starch and crude protein and in vitro digestibility of DM and NDF (P ≤ 0.032), while GLU had higher (P = 0.001) ADF. CEL showed lower (P = 0.012) ethanol content and higher (P = 0.02) anaerobic bacteria counts, while GLU showed higher (P = 0.012) lactate concentration and lower (P ≤ 0.002) counts of bacteria and fungi. Lambs fed with CEL presented higher (P ≤ 0.012) digestibility coefficients for DM, OM, CP and NDF. Decrease on DM recovery indicates no improvements on the nutritive value of silage. On the other hand, cellulolytic enzyme positively affected animal digestion.

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Bioclimatic zoning for dairy cows in Brazil by statistical modeling

Aparecido¹,

Lorençone²,

Lorençone³

et al. 2022

J Sci Food Agric

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BACKGROUND: Climate conditions affect animal welfare directly, influencing milk production. The Midwest region is the largest cattle-producing region in Brazil. The objective of this study was to elaborate on bioclimatic zoning for dairy cattle in the Midwest region of Brazil. Air temperature (Ta, °C) and relative humidity (%, RH) data from a 30-year historical series collected by the National Aeronautics and Space Administration/Prediction of Worldwide Energy Resources (NASA/POWER) platform were used. The Temperature and Humidity Index (THI) was determined for the hottest and coldest months. Milk production losses due to climate factors in the Midwest of Brazil for two daily production levels, 10 kg Milk (PL10) and 25 kg Milk (PL25), were estimated. RESULTS: The Midwest presented three THI classifications throughout the year: 'normal', 'alert', and 'critical alert'. The entire Midwest region was classified as 'normal' (THI < 70) between autumn and winter. The decrease in milk production (DMP) during the autumn and winter presented no loss for both production levels (PL10 and PL25).CONCLUSION: On the other hand, a 1 to 2 kg reduction in milk production was observed for cows with a PL25 production level between spring and summer in the southern Midwest region, while cows with a PL10 production level showed no reduction in milk production. Only the cities of Sinop and Cuiabá did not present a 'critical alert' during spring/summer for the risk of heat stress.

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Influence of a feed additive containing vitamin B12 and yeast extract on milk production and body temperature of grazing dairy cows under high temperature-humidity index environment

Cited by 10 publications

References 29 publications

Effects of live yeast on the rumen fermentation parameters and milk performance of Simmental dairy cows during the hot season

Effects of live yeast on the rumen fermentation parameters and milk performance of Simmental dairy cows during the hot season

Effect of Amylolytic and Cellulolytic Enzymes on Whole Plant Corn Silage: Characteristics of Silage and Animal Digestion

Bioclimatic zoning for dairy cows in Brazil by statistical modeling

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