Concentrate: forage ratio in the diet of dairy cows does not alter milk physical attributes

Machado, Sandro Lemos; McManus, Concepta; Stumpf, Marcelo Tempel; Fischer, Vívian

doi:10.1007/s11250-014-0576-7

Cited by 15 publications

(18 citation statements)

References 22 publications

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“…For the multiparous cows, this extra energy was used for both milk and body reserves. The HD-LD cows lost less weight during the mobilization period than the LD-LD cows and, consequently, had a higher LW at the end of the period than the LD-LD cows; this is in accordance with previous studies (Andersen et al, 2004;Machado et al, 2014). For the primiparous cows, the extra energy was only used for growth and body reserves, but not to increase the milk yield.…”

Section: Mobilization Period (From Calving Until Day Of Diet Shift)supporting

confidence: 90%

Effects of an individual weight-adjusted feeding strategy in early lactation on milk production of Holstein cows during extended lactation

Gaillard

Friggens

Taghipoor

et al. 2016

Journal of Dairy Science

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Extending lactation by voluntarily delaying rebreeding aims to improve fertility and milk production in the modern dairy cow. Previous studies have shown that increased energy concentrations in the ration induced greater total milk yield and lactation persistency defined by the duration and the shape of the lactation curve. In this paper, we hypothesized that increasing the supply of energy during the early lactation mobilization period would have a positive carryover effect on milk production during extended lactation. A total of 53 Holstein cows completed a 16-mo lactation, including 30% primiparous cows. The cows were divided into 2 feeding strategies: half of the cows received a high-energy density diet (HD) in early lactation followed by a lower-energy density diet (LD; strategy HD-LD). The change in diet was defined individually after 42 d of lactation, and when the live weight (LW) gain of the cow was ≥ 0 based on a 5-d average. The other half of the cows were fed the LD diet during the entire lactation (strategy LD-LD). Both groups received 3 kg of concentrates per day during milking. Weekly milk composition (fat, protein, lactose, and somatic cells), daily milk production, daily feed intake, daily LW, and body condition score every second week were recorded. The fda package of R was used to model the curves of these different variables for the 53 cows that had a lactation over 400 d. The fitted values of these curves and the associated slopes were then compared for parity and treatment effects using a linear mixed-effects model. The HD-LD and LD-LD cows had a similar length of lactation (461 ± 7 d). The HD diet reduced the intensity of the mobilization period and increased the milk production of the multiparous cows in early lactation compared with the cows fed the LD diet. The primiparous cows used the extra energy to grow and gain weight, but not to produce more milk. After the shift in diet, the treatment had little short-term carryover effect on milk yield or LW, but it affected the slopes of some curves. From 0 to 50 d from shift, milk fat content of the LD-LD cows decreased faster than that of the HD-LD cows whereas milk lactose increased. From 250 to 350 d from shift, the energy-corrected milk decreased faster for the HD-LD cows than for the LD-LD cows. The lactose content in milk decreased faster for the LD-LD cows than for the HD-LD cows, and the fat content in milk was significantly higher for the primiparous HD-LD than for the primiparous LD-LD cows. In conclusion, the supply of extra energy during the mobilization period had a 300-d negative carryover effect on lactation persistency.

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Section: Mobilization Period (From Calving Until Day Of Diet Shift)supporting

confidence: 90%

Effects of an individual weight-adjusted feeding strategy in early lactation on milk production of Holstein cows during extended lactation

Gaillard

Friggens

Taghipoor

et al. 2016

Journal of Dairy Science

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“…L content decreased due to the forage usage in present study. This finding was supported by some previous studies (Aguerre et al, 2011;Neveu et al, 2013), but not by another study (Machado et al, 2014), which report no difference in milk L content due to the forage usage. The increase in milk L content due to the use of compound feed in diet can be attributed to synthesis of propionic acid and glucose production in the intermediary metabolism.…”

Section: Discussionsupporting

confidence: 76%

“…The increase in milk L content due to the use of compound feed in diet can be attributed to synthesis of propionic acid and glucose production in the intermediary metabolism. This formed glucose which then is converted to L in milk (Machado et al, 2014). Milk P content followed the same trend as milk L content.…”

Section: Discussionmentioning

confidence: 73%

Effects of Feeding Management on Milk Yield and Composition Traits in Crossbred Jersey Cows

Atasever¹,

Garipoğlu²,

Erdem³

2020

PJZ

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This aim of this study was to determine the effect of some different feeding and management practices on milk production and traits in Jersey crossbred cows. A total of 78 smallholder dairy farms in the Middle Black Sea region province of Turkey was investigated by raw milk composition (fat (F), protein (P), lactose (L)), density (D), freezing point (FP), somatic cell count (SCC) and daily milk yield (DMY) according to the different feeding applications (grazing (G), silage usage (S), compound feed usage (C), number of milking cow (NMC), calf suckling period (CSP)). Average F (3.144±1.931%), P (3.022±0.448%), L (4.475±0.669%) and logSCC (5.386±0.529) values were within acceptable ranges. The present investigation revealed that feeding practices had an important role on both milk quality and quantity of Jersey crossbred cows. Therefore, it is suggested that procedures including proper feeding implementations should exactly be managed on the herds.

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“…Similarly, Machado et al. (2014) and Grimley et al. (2009) did not observe significant variation in ethanol stability in milk from cows fed with varying forage:concentrate ratios or when turning out to pasture from indoor housing, although O'Brien et al.…”

Section: Impact Of Milk Composition On Dairy Product Functionalitymentioning

confidence: 91%

Compositional and functional properties of milk and dairy products derived from cows fed pasture or concentrate‐based diets

Magan

O’Callaghan

Kelly

et al. 2021

Comp Rev Food Sci Food Safe

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Worldwide milk production is predominantly founded on indoor, high‐concentrate feeding systems, whereas pasture‐based feeding systems are most common in New Zealand and Ireland but have received greater attention recently in countries utilizing conventional systems. Consumer interest in ‘pasture‐fed’ dairy products has also increased, arising from environmental, ethical, and nutritional concerns. A substantial body of research exists describing the effect of different feeding strategies on the composition of milk, with several recent studies focusing on the comparison of pasture‐ and concentrate‐based feeding regimes. Significant variation is typically observed in the gross composition of milk produced from different supplemental feeds, but various changes in the discrete composition of macromolecular components in milk have also been associated with dietary influence, particularly in relation to the fatty acid profile. Changes in milk composition have also been shown to have implications for milk and dairy product processability, functionality and sensory properties. Methods to determine the traceability of dairy products or verify marketing claims such as ‘pasture‐fed’ have also been established, based on compositional variation due to diet. This review explores the effects of feed types on milk composition and quality, along with the ultimate effect of diet‐induced changes on milk and dairy product functionality, with particular emphasis placed on pasture‐ and concentrate‐based feeding systems.

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Concentrate: forage ratio in the diet of dairy cows does not alter milk physical attributes

Cited by 15 publications

References 22 publications

Effects of an individual weight-adjusted feeding strategy in early lactation on milk production of Holstein cows during extended lactation

Effects of an individual weight-adjusted feeding strategy in early lactation on milk production of Holstein cows during extended lactation

Effects of Feeding Management on Milk Yield and Composition Traits in Crossbred Jersey Cows

Compositional and functional properties of milk and dairy products derived from cows fed pasture or concentrate‐based diets

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