Kikuyu grass in winter–spring time in small-scale dairy systems in the highlands of central Mexico in terms of cow performance and fatty acid profile of milk

Plata-Reyes, Dalia Andrea; Hernández–Mendo, Omar; Vieyra-Alberto, Rodolfo; Portillo, Benito Albarrán; Martínez‐García, Carlos Galdino; Arriaga-Jordán, Carlos Manuel

doi:10.1007/s11250-021-02672-9

Cited by 12 publications

(27 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The AI proposed by Ulbricht and Southgate [85] is the sum of hypercholesterolemic SFA content divided by the sum of protective UFA. A low AI reflects milk with a low SFA content [86]; therefore, the consumer reduces the risk of fat contributing to the development of atheroma [87]. In this sense, this review demonstrates that there is an adequate relation between the biocomponents of milk produced by cows supplemented with oilseeds, i.e., FA profile, and so can be considered as a functional food with benefits on the human health.…”

Section: Milk Fatty Acid Profilementioning

confidence: 99%

“…The pericarp of whole oilseeds reaching the small intestine does not allow the absorption of the contained FA [63]. In this sense, the positive effect of SFA and negative effect of UFA with this supplementation strategy (whole oilseed) impacts on a higher AI, which is related to the higher content of SFA and therefore a less positive human-health effect [86,101]. Roasted oilseeds (whole and ground) are better utilized by ruminants [102], but in our review only had a positive effect on omega-6 PUFA, LA and OA, like the results reported by Rafiee-Yarandi et al [103], which may be related to changes in structural components that increase the level of protection of FA to ruminal biohydrogenation to some degree [61].…”

Section: Meta-regressionmentioning

confidence: 99%

See 1 more Smart Citation

Oilseed Supplementation Improves Milk Composition and Fatty Acid Profile of Cow Milk: A Meta-Analysis and Meta-Regression

Plata-Pérez

Ángeles-Hernández

Morales-Almaráz

et al. 2022

Animals

Self Cite

View full text Add to dashboard Cite

Oilseed supplementation is a strategy to improve milk production and milk composition in dairy cows; however, the response to this approach is inconsistent. Thus, the aim of this study was to evaluate the effect of oilseed supplementation on milk production and milk composition in dairy cows via a meta-analysis and meta-regression. A comprehensive and structured search was performed using the following electronic databases: Google Scholar, Primo-UAEH and PubMed. The response variables were: milk yield (MY), atherogenic index (AI), Σ omega-3 PUFA, Σ omega-6 PUFA, fat, protein, lactose, linoleic acid (LA), linolenic acid (LNA), oleic acid (OA), vaccenic acid (VA), conjugated linoleic acid (CLA), unsaturated fatty acid (UFA) and saturated fatty acid (SFA) contents. The explanatory variables were breed, lactation stage (first, second, and third), oilseed type (linseed, soybean, rapeseed, cottonseed, and sunflower), way (whole, extruded, ground, and roasted), dietary inclusion level, difference of the LA, LNA, OA, forage and NDF of supplemented and control rations, washout period and experimental design. A meta-analysis was performed with the “meta” package of the statistical program R. A meta-regression analysis was applied to explore the sources of heretogeneity. The inclusion of oilseeds in dairy cow rations had a positive effect on CLA (+0.27 g 100 g−1 fatty acids (FA); p < 0.0001), VA (+1.03 g 100 g−1 FA; p < 0.0001), OA (+3.44 g 100 g−1 FA; p < 0.0001), LNA (+0.28 g 100 g−1 FA; p < 0.0001) and UFA (+8.32 g 100 g−1 FA; p < 0.0001), and negative effects on AI (−1.01; p < 0.0001), SFA (−6.51; p < 0.0001), fat milk (−0.11%; p < 0.001) and protein milk (−0.04%; p < 0.007). Fat content was affected by animal breed, lactation stage, type and processing of oilseed and dietary NDF and LA contents. CLA, LA, OA and UFA, desirable FA milk components, were affected by type, processing, and the intake of oilseed; additionally, the concentrations of CLA and VA are affected by washout and design. Oilseed supplementation in dairy cow rations has a positive effect on desirable milk components for human consumption. However, animal response to oilseed supplementation depends on explanatory variables related to experimental design, animal characteristics and the type of oilseed.

show abstract

Section: Milk Fatty Acid Profilementioning

confidence: 99%

Section: Meta-regressionmentioning

confidence: 99%

Oilseed Supplementation Improves Milk Composition and Fatty Acid Profile of Cow Milk: A Meta-Analysis and Meta-Regression

Plata-Pérez

Ángeles-Hernández

Morales-Almaráz

et al. 2022

Animals

Self Cite

View full text Add to dashboard Cite

show abstract

“…Milk yield was recorded daily over the last four days using a clock spring balance with a 20 kg capacity, and an aliquot sample refrigerated until analyses for milk fat, protein, and lactose content with an ultrasound milk analyser. Milk yield was corrected to 3.5% fat content following Dairy Records Management Systems (2014) and Plata-Reyes et al (2021). Analyses for milk urea nitrogen (MUN) were by the enzymatic colorimetric method (Chaney and Marbach 1962), as reported in previous works (Celis-Alvarez et al 2016;Plata-Reyes et al 2018;.…”

Section: Animal Variablesmentioning

confidence: 99%

“…The experimental design for crop variables was a randomised split-plot design with crop subdivisions as experimental units, crops as main plots, experimental periods as split-plots, and samplings (inside and outside the exclusion cages) as replicates within crop subdivisions, resorting to the model below for statistical analyses (Plata-Reyes et al, 2021):…”

Section: Experimental Designmentioning

confidence: 99%

Grazed rain-fed small-grain cereals as a forage option for small-scale dairy systems in central Mexico

Vega-García

López-González

Morales-Almaráz

et al. 2021

Trop Anim Health Prod

Self Cite

View full text Add to dashboard Cite

Small-scale dairy systems face reduced availability of water for irrigation of pastures and disruption in the amount or pattern of rains due to climate change, so research on alternative short-cycle rain-fed forages is needed. Grazing reduces feeding costs and small-grain cereals may be an option. The objective was to assess on-farm the performance of dairy cows grazing 6 h/d of three small-grain cereals: rye (RYE), wheat (WHT), and triticale (TRT), and supplemented 4.5 kg DM/cow/d of concentrate. Twelve Holstein cows were used in repeated 3x3 Latin Squares with 14-day experimental periods. Pasture variables were analysed with a split-plot design, and economic analysis was performed with partial budgets. Sampling of forage (sward height, net herbage accumulation, botanical and chemical composition of herbage) and animal variables (milk yield and composition, live weight, and body condition score) were at the end of each period. RYE showed a trend (P = 0.10) for higher net herbage accumulation with highly signi cant differences (P < 0.001) among periods. RYE had higher DM, a lower CP content (P < 0.05) and no differences for other chemical components between treatments (P > 0.05). RYE proportion in pasture was consistently higher, whilst the lowest cereal proportion was in WHT. There were no differences (P > 0.05) for any animal variable. The RYE and TRT treatments proved useful as rain-fed forage alternatives under grazing. WHT showed lower crop and economic performance. However given the higher cereal component in pastures, regrowth potential, post-grazing herbage mass, as well as better economic performance, the RYE treatment was better ranked by the participating farmer.

show abstract

“…El pasto kikuyo se ha diseminado en muchas partes del mundo, donde, favorecido por su crecimiento estolonífero agresivo, tiende a dominar en las praderas (García et al, 2014). Usualmente, este pasto es utilizado para el pastoreo del ganado sin conocer suficientemente sus propiedades nutricionales (Plata-Reyes et al, 2018;Marín-Santana et al, 2020;Plata-Reyes et al, 2021).…”

Section: Introductionunclassified

Composición Botánica Y Evaluación Nutricional in Vitro De Pasto Kikuyo Comparado Con Gramíneas De Clima Templ

Plata-Reyes

Estrada-Flores

López-González

et al. 2021

Trop Subtrop Agroecosyst

Self Cite

View full text Add to dashboard Cite

Background: Intensive continuous grazing of temperate grass and legume pastures has been a feeding strategy adopted in small-scale dairy systems (SSDS) in the highlands of central Mexico that reduces costs and increases profitability of farms. However, temperate grasses have low persistency due to agroclimatic and management conditions, so that pastures are invaded by kikuyu grass (Cenchrus clandestinus), a sub-tropical grass that may be a valuable forage resource in these systems. There are not many studies in Mexico on kikuyu grass pastures and on the relationship between botanical composition, nutritional value and ruminal fermentation parameters, important aspects for their inclusion in feeding strategies for dairy cattle. Objective: The objective was to determine the botanical composition and to assess the in vitro digestibility of dry matter (DM), organic matter (OM), and neutral detergent fibre (NDF), and to characterize the kinetics of in vitro ruminal fermentation of a pasture based on with kikuyu grass (KY) in comparison to pastures based on festulolium cv. Spring Green (FL), tall fescue cv. TF-33 (TF), and perennial ryegrass cv. Pay Day (RG), all associated with white clover. Methodology: There were four sampling periods every 14 days. On the last day of each period, five random samples in each pasture were cut to ground level to determine botanical composition by manual separation, and 200g samples from each pasture taken by simulated grazing to determine digestibilities and the in vitro fermentation dynamics. Statistical analyses were following a split-plot model. Results: There was a higher proportion of grasses in KY and a better in vitro nutritional value for RG, related to a higher content of structural carbohydrates in KY, being a subptropical grass compared to temperate pastures with lower content of cell walls. Results: There was a higher proportion (P<0.05) of live grass in KY. There were no differences (P>0.05) among pastures for in vitro nutritional value. There were differences (P<0.05) among pastures and periods for the insoluble fraction fermentation rate (CB) and for the interaction between pastures and periods for gas production in 4.0 h of the soluble fraction (A) and the soluble carbohydrate fermentation rate (CA), but no differences between pastures, periods or the interaction (P>0.05) for other parameters of ruminal fermentation (lag time and total gas production). Implications: Pastures of kikuyu grass associated with white clover have a similar in vitro nutritional value as pastures of temperate grasses representing a valuable forage resource for SSDS. Conclusion: In spite of differences in some in vitro ruminal fermentation parameters, the in vitro nutritional value of kikuyu grass pastures associated with white clover is similar to pastures based on temperate grasses with white clover.

show abstract

Kikuyu grass in winter–spring time in small-scale dairy systems in the highlands of central Mexico in terms of cow performance and fatty acid profile of milk

Cited by 12 publications

References 53 publications

Oilseed Supplementation Improves Milk Composition and Fatty Acid Profile of Cow Milk: A Meta-Analysis and Meta-Regression

Oilseed Supplementation Improves Milk Composition and Fatty Acid Profile of Cow Milk: A Meta-Analysis and Meta-Regression

Grazed rain-fed small-grain cereals as a forage option for small-scale dairy systems in central Mexico

Composición Botánica Y Evaluación Nutricional in Vitro De Pasto Kikuyo Comparado Con Gramíneas De Clima Templ

Contact Info

Product

Resources

About