Effects of varying silage quality for dry cows on feed intake, weight change and performance in the subsequent lactation

2000 ◽  
Vol 2000 ◽  
pp. 142-142
Author(s):  
R. J. Dewhurst ◽  
D. W. R. Davies ◽  
W. J. Fisher
Keyword(s):  
Milk Production ◽  
Metabolic Activity ◽  
Feed Intake ◽  
Nutrient Supply ◽  
Current Experiment ◽  
High Quality ◽  
Grass Silage ◽  
Silage Quality ◽  
Voluntary Intake ◽  
And Performance

Earlier studies (e.g. Dewhurst et al., 1996, 1999) have shown marked declines in forage voluntary intake as calving approaches. The resultant reduction in nutrient supply may compromise performance in the next lactation, because it coincides with a period of intense metabolic activity in preparation for the next lactation. Feeding concentrates to dry cows did not overcome this problem (Dewhurst et al., 1999). The objective of the current experiment was to investigate alternative dry cow strategies, using only high-quality grass silage, to minimise the severity and consequences for subsequent milk production of the reduction in nutrient supply in this period.

The effect of grass and maize silage quality on diet digestibility and performance of beef cattle

2003 ◽  
Vol 2003 ◽  
pp. 10-10
Author(s):  
R.M. Kirkland ◽  
D.C. Patterson
Keyword(s):  
Beef Cattle ◽  
Animal Performance ◽  
Maize Silage ◽  
High Quality ◽  
Grass Silage ◽  
Preliminary Study ◽  
Silage Quality ◽  
And Performance

A preliminary study at this Institute indicated that inclusion of high quality maize silage in a grass silage-based diet could promote higher forage intakes in beef cattle, but the response to inclusion of maize silage was affected by the quality of grass silage. The objective of this study was to further examine the effects of grass (GS) and maize (MS) silage qualities on intake characteristics, and to evaluate the influence of forage offered on animal performance.

Prediction of silage intake by cattle

1995 ◽  
Vol 1995 ◽  
pp. 20-20
Author(s):  
R.W.J. Steen ◽  
F.J. Gordon ◽  
C.S. Mayne ◽  
R.E. Agnew ◽  
D.J. Kilpatrick ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Dairy Cows ◽  
Efficient Production ◽  
High Quality ◽  
Grass Silage ◽  
Voluntary Intake ◽  
Design Experiments ◽  
Optimum Input

Efficient production of high quality milk and beef is dependent on dairy cows and beef cattle receiving the correct intake of nutrients. However the intake of grass silage is very variable and consequently an effective method for predicting the voluntary intake of silage is essential if animals are to be allocated the correct amount of concentrates to provide the optimum input of nutrients. Two changeover design experiments have been carried out with the aim of providing an effective method for predicting silage intake by cattle.

Prediction of silage intake by cattle

1995 ◽  
Vol 1995 ◽  
pp. 20-20 ◽  
Author(s):  
R.W.J. Steen ◽  
F.J. Gordon ◽  
C.S. Mayne ◽  
R.E. Agnew ◽  
D.J. Kilpatrick ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Dairy Cows ◽  
Efficient Production ◽  
High Quality ◽  
Grass Silage ◽  
Voluntary Intake ◽  
Design Experiments ◽  
Optimum Input

Efficient production of high quality milk and beef is dependent on dairy cows and beef cattle receiving the correct intake of nutrients. However the intake of grass silage is very variable and consequently an effective method for predicting the voluntary intake of silage is essential if animals are to be allocated the correct amount of concentrates to provide the optimum input of nutrients. Two changeover design experiments have been carried out with the aim of providing an effective method for predicting silage intake by cattle.

Digestibility and nitrogen balance in dairy cows given diets of grass silage and whole crop wheat

1995 ◽  
Vol 1995 ◽  
pp. 4-4
Author(s):  
J D Sutton ◽  
A L Abdalla ◽  
R H Phipps ◽  
S B Cammell ◽  
D J Humphries
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Feed Intake ◽  
Attractive Alternative ◽  
Fresh Weight ◽  
Grass Silage ◽  
Holstein Friesian ◽  
Feeding Trials ◽  
Low Efficiency ◽  
Friesian Cows

Whole crop wheat (WCW) appears to offer an attractive alternative forage to grass silage for dairy cows, particularly in those areas where maize silage cannot be grown. However in previous feeding trials the inclusion of WCW with grass silage has increased food intake but has not led to a corresponding increase in milk yield (Phipps et al,1993). As part of a programme to try to overcome the low efficiency of diets containing WCW, the present experiment was designed to examine the effects on feed intake and digestibility and milk production of the step-wise replacement of GS by urea-treated WCW.Winter wheat (cv Hussar), harvested at 620g DM/kg fresh weight and preserved with 20 or 40 g urea/kg DM (WCW-2, WCW-4) was compared with first-cut perennial ryegrass silage (GS). Six multiparous Holstein-Friesian cows in mid-lactation were offered six diets over three 4-week periods in an incomplete change-over design. Diets were 6kg DM concentrates daily with forages ad lib. Treatments (DM basis) were GS alone, 2:1 GS:WCW-2 or WCW-4, 1:2 GS: WCW-2 or WCW-4, and WCW-4 alone. Feed intake and milk production were measured in weeks 3 and 4 and digestibility in week 4.

The effects of intraruminal infusions of urea on the voluntary intake and milk production of cows receiving grass silage diets

1990 ◽  
Vol 57 (4) ◽  
pp. 455-464 ◽  
Author(s):  
Jai-Jun Choung ◽  
David G. Chamberlain ◽  
Phillip C. Thomas ◽  
Ian Bradbury
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Crude Protein ◽  
Clinical Symptoms ◽  
Factors Associated ◽  
Grass Silage ◽  
Lactating Cows ◽  
Insulin In Plasma ◽  
Voluntary Intake ◽  
Higher Doses

SummaryResponses of dairy cows given silage diets to the intraruminal infusion of urea in progressively increasing doses were studied in four experiments, two with non-lactating cows and two with lactating cows. No clinical symptoms of NH3 toxicity were observed in any of the experiments. When urea was infused continuously, silage intake was depressed (P < 0·05) when the total supply of N exceeded the equivalent of 250g crude protein (CP)/kg DM in the total diet. However, when the urea load was administered twice daily, as opposed to continuously, intake depression (P < 0·05) occurred at the equivalent of 170g CP/kg DM. At the higher doses of urea, concentrations of NH3 in peripheral blood increased and were accompanied by increased concentrations of glucose and reduced levels of insulin in plasma. In general, responses of milk production followed those of silage intake but there was evidence of greater proportional reductions in the yield of lactose relative to that of fat and protein. It is concluded that the voluntary intake of high-protein silages may be depressed by factors associated with high rates of absorption of NH3 from the rumen.

scholarly journals A comparison of grass silages harvested at first, second and third cut on feed intake and milk production of dairy cows

2021 ◽  
Vol 30 (2) ◽  
Author(s):  
Auvo Sairanen ◽  
Sari Kajava ◽  
Annu Palmio ◽  
Marketta Rinne
Keyword(s):  
Milk Production ◽  
Dairy Cow ◽  
Feed Intake ◽  
Dry Matter ◽  
Weather Conditions ◽  
Production Potential ◽  
Grass Silage ◽  
Feeding Experiments ◽  
Northern Latitudes ◽  
Average Intake

The objective of this study was to compare the milk production potential of first, second and third harvest of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based The objective of this study was to compare the milk production potential of subsequent first, second and third cuts of grass silage from the same sward in Northern latitudes. Three change-over design dairy cow feeding experiments were conducted during different years which differed markedly in weather conditions. The silages were supplemented with a cereal based concentrate (average concentrate proportion 431 g kg-1 diet dry matter). Feed intake and milk production was highest with first-cut and lowest with third-cut silage. The energy corrected milk yields averaged over three experiments were 35.0, 33.2 and 31.9 kg d-1 for first, second and third harvest silages, respectively. Respective dry matter intakes were 23.1, 21.9 and 20.7 kg d-1. Compared to analysed feed values, the average intake of third-cut silages was lower than expected. Due to the high risk of low intake potential of third-cut silages, they are not recommended for cows in early lactation if there are other silages available.

Effect of suckler cow breed type on voluntary silage intake, body reserves mobilisation, milk yield and calf performance

1998 ◽  
Vol 1998 ◽  
pp. 81-81 ◽  
Author(s):  
M. McGee ◽  
M.J. Drennan ◽  
P.J. Caffrey
Keyword(s):  
Milk Yield ◽  
Winter Period ◽  
Grass Silage ◽  
Breed Type ◽  
Body Reserves ◽  
Calf Performance ◽  
Voluntary Intake ◽  
Silage Production ◽  
And Performance ◽  
Increased Retention

The increased retention of within herd replacements will inevitably result in an increasing proportion of continental breed (mainly Charolais) in the suckler cow herd. Due to the high costs of silage production, winter feeding of suckler cows is expensive and thus cows are generally allowed to mobilise body reserves in winter. The objective of this study was to compare the voluntary intake of grass silage and performance of spring calving Charolais (CH) and Beef x (Hereford and Limousin) Friesian (BF) suckler cows and their progeny during the winter period.

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