Effects of a blend of essential oils, chitosan or monensin on nutrient intake and digestibility of lactating dairy cows

Vendramini, Thiago Henrique Annibale; Takiya, Caio Seiti; Silva, Thiago Henrique da; Zanferari, Filipe; Rentas, Mariana Fragoso; Bertoni, Jessica Cristiane; Consentini, Carlos Eduardo Cardoso; Gardinal, Rodrigo; Acedo, Tiago S; Rennó, Francisco Palma

doi:10.1016/j.anifeedsci.2016.01.015

Cited by 58 publications

(54 citation statements)

References 35 publications

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“…Some studies have also reported the lack of effects of MON on DM intake and digestibility of dairy cows (Akins et al, 2014;Prado et al, 2015b;Vendramini et al, 2016). Besides of that, data of FO effects on dairy cow performance are still scarce in Table 5 Influence of a blend of functional oils or monensin on nitrogen utilization, microbial protein synthesis, and blood profile of lactating dairy cows.…”

Section: Discussionmentioning

confidence: 99%

Influence of a blend of functional oils or monensin on nutrient intake and digestibility, ruminal fermentation and milk production of dairy cows

Jesus

Valle

Calomeni

et al. 2016

Animal Feed Science and Technology

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a b s t r a c tCashew nut shell liquid (CNSL) and castor oil (CO) are considered functional oils since they present antitumor, antioxidant, gastroprotective, and antibiotic properties. The objective of this study was to evaluate the effects a commercial blend of functional oils (CNSL and CO) and monensin supplementation on nutrient intake and total tract apparent digestibility, ruminal fermentation, milk yield and composition, N utilization, microbial protein synthesis, and blood metabolites of dairy cows. Twenty-four multiparous Holstein cows (150.2 ± 61.4 days in milk, 619 ± 76 kg of BW and 29.1 ± 4.0 kg/d of milk yield, mean ± SD) were used in a replicated 3 × 3 Latin square experimental design, in which six ruminally cannulated cows were used to assess ruminal fermentation. The animals were randomly assigned to one of the following three treatments: control (CON; without additive); 500 mg/kg DM of functional oil (FO; commercial blend of CNSL and CO), and 22 mg/kg DM of monensin sodium (MON). The treatments did not affect either nutrient intake or digestibility of diets. Both feed additives provided an increase in ruminal propionate molar proportion compared to CON. In addition, FO increased ruminal propionate concentration when compared to MON and CON. Although both additives increased (P < 0.01) milk and protein yields, MON had lower milk fat concentration compared to CON, not differing from FO. Monensin and FO increased milk nitrogen excretion.Neither rumen microbial N synthesis nor blood glucose concentration were changed by the supplements. Finally, FO decreased (P < 0.001) blood urea concentration compared to CON or MON, besides increasing milk yield without altering nutrient intake; thus, it might be an alternative to monensin in lactating cow diets.

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Section: Discussionmentioning

confidence: 99%

Influence of a blend of functional oils or monensin on nutrient intake and digestibility, ruminal fermentation and milk production of dairy cows

Jesus

Valle

Calomeni

et al. 2016

Animal Feed Science and Technology

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“…On day 11 of each experimental period, ruminal fluid samples (200 mL) were collected before the morning feeding (0 h) and 2, 4, 6, 8, 10, and 12 h after the morning feeding straining rumen digesta (collected from posterior ventral, posterior dorsal, medium ventral, anterior ventral, and anterior dorsal sites) in four layers of cheese cloth [15]. Immediately after each sampling, ruminal fluid pH was determined using a potentiometer (MB-10, Marte, Santa Rita do Sapucaí, Brazil).…”

Section: Methodsmentioning

confidence: 99%

Influence of polymer-coated slow-release urea on total tract apparent digestibility, ruminal fermentation and performance of Nellore steers

Gardinal¹,

Calomeni²,

Cônsolo³

et al. 2016

Asian-Australas J Anim Sci

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ObjectiveTwo experiments were performed to evaluate the effects of coated slow-release urea on nutrient digestion, ruminal fermentation, nitrogen utilization, blood glucose and urea concentration (Exp 1), and average daily gain (ADG; Exp 2) of steers.MethodsExp 1: Eight ruminally fistulated steers [503±28.5 kg body weight (BW)] were distributed into a d 4×4 Latin square design and assigned to treatments: control (CON), feed grade urea (U2), polymer-coated slow-release urea A (SRA2), and polymer-coated slow-release urea B (SRB2). Dietary urea sources were set at 20 g/kg DM. Exp 2: 84 steers (350.5±26.5 kg initial BW) were distributed to treatments: CON, FGU at 10 or 20 g/kg diet DM (U1 and U2, respectively), coated SRA2 at 10 or 20 g/kg diet DM (SRA1 and SRA2, respectively), and coated SRB at 10 or 20 g/kg diet DM (SRB1 and SRB2, respectively).ResultsExp 1: Urea treatments (U2+SRA2+SRB2) decreased (7.4%, p = 0.03) the DM intake and increased (11.4%, p<0.01) crude protein digestibility. Coated slow-release urea (SRA2+SRB2) showed similar nutrient digestibility compwared to feed grade urea (FGU). However, steers fed SRB2 had higher (p = 0.02) DM digestibility compared to those fed SRA2. Urea sources did not affect ruminal fermentation when compared to CON. Although, coated slow-release urea showed lower (p = 0.01) concentration of NH3-N (−10.4%) and acetate to propionate ratio than U2. Coated slow-release urea showed lower (p = 0.02) urinary N and blood urea concentration compared to FGU. Exp 2: Urea sources decreased (p = 0.01) the ADG in relation to CON. Animals fed urea sources at 10 g/kg DM showed higher (12.33%, p = 0.01) ADG compared to those fed urea at 20 g/kg DM.ConclusionFeeding urea decreased the nutrient intake without largely affected the nutrient digestibility. In addition, polymer-coated slow-release urea sources decreased ruminal ammonia concentration and increased ruminal propionate production. Urea at 20 g/kg DM, regardless of source, decreased ADG compared both to CON and diets with urea at 10 g/kg DM.

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“…In the contrary, Wallace et al, (2002) and Hart et al, (2008) suggested that EO decreased degradation of readily degradable substrate, such as protein and starch, due to inhibition to colonization and digestion of these substrates by amylolytic and proteolytic bacteria. While, Vendramini et al(2016). Abdallah et al, (2016) reported that addition of EO had no significant effect on total tract digestibility of dry matter, organic matter, crude protein and crude fiber.…”

Section: Resultsmentioning

confidence: 98%

Performance of Lambs Fed Rations Supplemented With Thyme Essential Oil

El-Naggar

Abou-Ward

Tawila

et al. 2017

Egyptian Journal of Nutrition and Feeds

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SUMMMARYighteen growing Ossimi lambs (28.92 kg average live body weight and 6-7 months old) were used to evaluate incorporating thyme essential oil (TEO) in ration on nutrients digestibility and growth performance. In growth trial lasted 90 days followed by digestibility trial for 14 days, the lambs were randomly divided according to their live body weight into three feeding groups (6 each).Total mixed ration consisted of 60% concentrate: 40% roughage was offered to lambs in all groups to cover its total requirements. Whereas, there was no TEO in the control feeding group, R1, while R2 and R3 were supplemented with 0.1 and 0.2 TEO from DM intake, respectively. Data of nutrients digestibility indicated that incorporating TEO in both of R2 and R3 significantly (P<0.05) increased digestibility of DM, OM, CP, EE and NFE. While, EE digestibility was only significantly (P<0.05) increased in R3 compared with R1. The same trend was observed for nutritive value either as TDN or DCP, whereas it was significantly (P<0.05) improved with R2 and R3 compared with R1.There were no adverse effects for thyme oil supplementation on rumen pH, but significant (P<0.05) decreased rumen ammonia concentration and increased the rumen volatile fatty acids compared with control group. As a result of this improvement in nutritive value, the highest body weight gains were recorded with R2 and R3 (187 and 200 g/h/d) compared to 160 g/h/d. for R1. So, it can be concluded that incorporating thyme essential oil in growing lambs ration by either 0.1 or 0.2% from DM intake improved both of nutrients digestibility and growth performance.

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Effects of a blend of essential oils, chitosan or monensin on nutrient intake and digestibility of lactating dairy cows

Cited by 58 publications

References 35 publications

Influence of a blend of functional oils or monensin on nutrient intake and digestibility, ruminal fermentation and milk production of dairy cows

Influence of a blend of functional oils or monensin on nutrient intake and digestibility, ruminal fermentation and milk production of dairy cows

Influence of polymer-coated slow-release urea on total tract apparent digestibility, ruminal fermentation and performance of Nellore steers

Performance of Lambs Fed Rations Supplemented With Thyme Essential Oil

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