Effects of concentrate supplementation in early lactation on nutrient efficiency, ruminal fermentation and reticular pH of zero-grazing dairy cows with differing milk production potentials

2018 ◽  
Vol 102 (6) ◽  
pp. 1497-1508
Author(s):  
Manuela Falk ◽  
Andreas Münger ◽  
Rahel S. Zbinden ◽  
Josef J. Gross ◽  
Rupert M. Bruckmaier ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Early Lactation ◽  
Nutrient Efficiency ◽  
Ruminal Fermentation ◽  
Concentrate Supplementation ◽  
Grazing Dairy Cows ◽  
Zero Grazing

Effects of concentrate supplementation on enteric methane emissions and milk production of grazing dairy cows

2015 ◽  
Vol 175 ◽  
pp. 37-46 ◽  
Author(s):  
Camila Muñoz ◽  
Sara Hube ◽  
Jorge M. Morales ◽  
Tianhai Yan ◽  
Emilio M. Ungerfeld
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Methane Emissions ◽  
Concentrate Supplementation ◽  
Enteric Methane ◽  
Grazing Dairy Cows ◽  
Enteric Methane Emissions

scholarly journals Economic Analysis of Offering Different Herbage Allowances to Dairy Cows Fed a Partial Mixed Ration

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1704
Author(s):  
Christie K. M. Ho ◽  
Martin J. Auldist ◽  
Marlie M. Wright ◽  
Leah C. Marett ◽  
Bill Malcolm ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Dairy Cow ◽  
Early Lactation ◽  
Total Milk ◽  
Net Benefits ◽  
Grazing Dairy Cows ◽  
The Cost ◽  
Dairy Cow Nutrition ◽  
Feeding Systems

The economics of grazing dairy cows offered a range of herbage allowances and fed supplements as a partial mixed ration (PMR) were examined where profit was defined as the margin between total milk income and the cost of pasture plus PMR supplement. The analysis made use of milk production and feed intake data from two dairy cow nutrition experiments, one in early lactation and the other in late lactation. In early lactation and at a PMR intake of 6 kg DM/cow per day, the profit from the cows with access to a medium herbage allowance (25 kg DM/cow per day) was AUD 1.40/cow per day higher than that for cows on a low allowance (15 kg DM/cow per day). At a higher PMR intake of 14 kg DM/cow per day, the profit from the cows on a medium herbage allowance was AUD 0.45/cow per day higher than the cows on a low allowance; there was no additional profit from increasing the herbage allowance from medium to high (40 kg DM/cow per day). In late lactation, the profit from the cows fed a PMR with a medium herbage allowance (20 kg DM/cow per day) was only higher than the cows on a low allowance (12 kg DM/cow per day) when the PMR intake was between 6 and 12 kg DM/cow per day. There was also a difference of AUD +0.50/cow per day between the PMR with medium and high herbage allowance (32 kg DM/cow per day). It was concluded that farmers who feed a PMR to dairy cows should offer at least a medium herbage allowance to optimize profit. While feeding additional PMR increases milk production and profit, further gains would be available by offering a higher herbage allowance. These findings provide an estimate of the net benefits of different herbage allowances when feeding a PMR and will enable farmers to manage their feeding systems more profitably.

Participatory on-farm evaluation of the response to concentrate supplementation by cows in early lactation in smallholder peasant (campesino) dairy production systems in the highlands of central Mexico

2001 ◽  
Vol 137 (1) ◽  
pp. 97-103 ◽  
Author(s):  
C. M. ARRIAGA-JORDÁN, ◽  
F. J. FLORES-GALLEGOS ◽  
G. PEÑA-CARMONA ◽  
B. ALBARRÁN-PORTILLO ◽  
A. GARCÍA-MARTÍNEZ ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Live Weight ◽  
Appropriate Technology ◽  
Central Mexico ◽  
Early Lactation ◽  
Concentrate Supplementation ◽  
Condition Score ◽  
On Farm

Concentrates are the main cash expenditure in smallholder campesino dairying in the highlands of Central Mexico. Improved, low-cost, appropriate feeding strategies have been therefore identified by campesinos as a priority. An on-farm trial was undertaken in 1998 to evaluate the response to supplementation with concentrates by dairy cows in early lactation during the rainy season with restricted access to grazing of ryegrass/white clover pastures. A base of 3·0 kg commercial concentrate/cow/day (S3) was compared against the higher rate used by farmers of 5·0 kg/cow/day (S5). Three farmers with one, and one farmer with two pairs of freshly calved upgraded Holstein cows participated in the trial (24±10·7 days into lactation). Data were analysed by a random block split-plot design where supplementation treatments were main plots and measurement periods were split-plots. Milk yield was recorded once per week for 9 weeks, and live weight and condition score for four 28 day periods. Milk yields were 21·8 for S3 and 21·9 for S5 (±0·714) kg milk/day/cow (P > 0·05); live weight S3 = 444·0 and S5 = 496·0 (±12·663) kg/cow (P > 0·05), and condition score S3 = 1·9, and S5 = 1·8 (±1·127) (P >0·05). There were no significant (P> 0·05) effects of measurement periods, and there was no significant (P > 0·05) interaction. The lack of response in milk yield, live weight or condition score to increased concentrate supplementation demonstrates that at these levels of production and management, the access to grazing of improved pastures, plus limited concentrate, enables cows in campesino systems to meet their nutrient requirements, and the feasibility of efficient milk production from grazed pastures as an appropriate technology. It is also concluded that it is an appropriate technology and that the results have implications for research and extension workers in rural development who have promoted large amounts of concentrate to dairy cows as the only way towards high yields and efficient milk production.

Late summer concentrate supplementation of dairy cows at grass

2001 ◽  
Vol 2001 ◽  
pp. 188-188 ◽  
Author(s):  
L.A. Wilson ◽  
D.J. Roberts ◽  
A.R. Henderson
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Late Summer ◽  
Early Lactation ◽  
Production Potential ◽  
Summer Period ◽  
Genetic Merit ◽  
Concentrate Supplementation

Concentrate supplementation at grass enables the higher genetic merit cow to perform closer to her production potential (McGilloway and Mayne, 1996). Responses to concentrate supplementation are usually greater in late summer and autumn as availability and quality of grazing declines. The objective of this study was to quantify milk production responses when early lactation, high yielding dairy cows at grass, were supplemented with high levels of concentrates, over the late summer period.

scholarly journals Metabolic and Productive Response and Grazing Behavior of Lactating Dairy Cows Supplemented with High Moisture Maize or Cracked Wheat Grazing at Two Herbage Allowances in Spring

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 919
Author(s):  
Verónica M. Merino ◽  
Lorena Leichtle ◽  
Oscar A. Balocchi ◽  
Francisco Lanuza ◽  
Julián Parga ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Dry Matter ◽  
Body Condition Score ◽  
Latin Square ◽  
Ruminal Fermentation ◽  
High Moisture ◽  
Plasma Urea ◽  
Grazing Behavior

The aim was to determine the effect of the herbage allowance (HA) and supplement type (ST) on dry matter intake (DMI), milk production and composition, grazing behavior, rumen function, and blood metabolites of grazing dairy cows in the spring season. Experiment I: 64 Holstein Friesian dairy cows were distributed in a factorial design that tested two levels of daily HA (20 and 30 kg of dry matter (DM) per cow) and two ST (high moisture maize (HMM) and cracked wheat (CW)) distributed in two daily rations (3.5 kg DM/cow/day). Experiment II: four mid-lactation rumen cannulated cows, supplemented with either HMM or CW and managed with the two HAs, were distributed in a Latin square design of 4 × 4, for four 14-d periods to assess ruminal fermentation parameters. HA had no effect on milk production (averaging 23.6 kg/day) or milk fat and protein production (823 g/day and 800 g/day, respectively). Cows supplemented with CW had greater protein concentration (+1.2 g/kg). Herbage DMI averaged 14.17 kg DM/cow.day and total DMI averaged 17.67 kg DM/cow.day and did not differ between treatments. Grazing behavior activities (grazing, rumination, and idling times) and body condition score (BCS) were not affected by HA or ST. Milk and plasma urea concentration increased under the high HA (+0.68 mmol/L and +0.90 mmol/L, respectively). Cows supplemented with HMM had lower milk and plasma urea concentrations (0.72 mmol/L and 0.76 mmol/L less, respectively) and tended (p = 0.054) to have higher plasma β-hydroxybutyrate. Ruminal parameters did not differ between treatments.

Sign in / Sign up

Export Citation Format

Share Document