scholarly journals Direct and maternal genetic relationships between calving ease, gestation length, milk production, fertility, type, and lifespan of Holstein-Friesian primiparous cows

2013 ◽  
Vol 96 (6) ◽  
pp. 4015-4025 ◽  
Author(s):  
S.A.E. Eaglen ◽  
M.P. Coffey ◽  
J.A. Woolliams ◽  
E. Wall
Keyword(s):  
Milk Production ◽  
Genetic Relationships ◽  
Gestation Length ◽  
Calving Ease ◽  
Holstein Friesian

scholarly journals Phenotypic effects of calving ease on the subsequent fertility and milk production of dam and calf in UK Holstein-Friesian heifers

2011 ◽  
Vol 94 (11) ◽  
pp. 5413-5423 ◽  
Author(s):  
S.A.E. Eaglen ◽  
M.P. Coffey ◽  
J.A. Woolliams ◽  
R. Mrode ◽  
E. Wall
Keyword(s):  
Milk Production ◽  
Calving Ease ◽  
Subsequent Fertility ◽  
Holstein Friesian

scholarly journals BREED OF DAM, AGE OF DAM AND SEX OF CALF EFFECTS IN THE CANADIAN SIMMENTAL YOUNG SIRE PROVING PROGRAM

1984 ◽  
Vol 64 (1) ◽  
pp. 1-8
Author(s):  
R. A. KEMP ◽  
L. R. SCHAEFFER ◽  
J. W. WILTON
Keyword(s):  
Birth Weight ◽  
Key Words ◽  
Mixed Model ◽  
Genetic Relationships ◽  
Residual Effects ◽  
Gestation Length ◽  
Calving Ease ◽  
Sire Evaluation ◽  
Unbiased Estimates ◽  
Best Linear Unbiased

Canadian Simmental Association Young Sire Proving Program records (1978–1982) were used to estimate breed of dam by age of dam by sex of calf effects for several traits. Two models were used. Model 1 included fixed herd-years, breed of dam by age of dam by sex of calf (BAX) plus random sire and residual effects. Model 2 included fixed herd-year by sex of calf and breed of dam by age of dam (BA) plus random sire and residual effects. Both models included additive genetic relationships among sires and maternal grandsires. Traits used with Model 1 were gestation length (GL), calving ease (CE), birth weight (BW), gain on dam (GD) and 200-day weight (WW). Model 2 was used for gain on test (GT) and 365-day weight (YW). Mixed model techniques were used to obtain best linear unbiased estimates of BAX and BA from models 1 and 2, respectively. Hypothesis tests were conducted using two breed of dam groups ([Formula: see text] Simmental (S) and [Formula: see text] British breeds (B)) and four age of dam groups (2, 3, 4 and 5 + yr which correspond to < 31, 31–42, 43–54 and > 54 mo, respectively). Three-way subclasses (BAX) were significant (P < 0.01) for GL, CE, BW, GD and WW as were two-way subclasses (BA) for YW. Estimated differences for breed of dam by age of dam by six of calf subclasses (for GL, CE, BW, GD, WW) and breed of dam by age of dam subclasses (for YW) generally increased as age of dam increased. Accounting for breed of dam, age of dam, sex of calf and interaction effects are important in sire evaluation. Estimated differences of these effects, a by-product of sire evaluation, can be used to increase the accuracy of procedures for individual and dam evaluation. Key words: Breed of dam by age of dam by sex of calf effects, sire evaluation, mixed model techniques

Phenotypic and Genetic Relationships between Calving Ease, Gestation Length, Birth Weight and Preweaning Growth

1978 ◽  
Vol 47 (3) ◽  
pp. 595-600 ◽  
Author(s):  
P. J. Burfening ◽  
D. D. Kress ◽  
R. L. Friedrich ◽  
D. D. Vaniman
Keyword(s):  
Birth Weight ◽  
Genetic Relationships ◽  
Gestation Length ◽  
Calving Ease

Comparison of milk production, mastitis, lameness and days to conception of Brown Swiss, Holstein and Holstein cross Brown Swiss dairy cattle

2006 ◽  
Vol 2006 ◽  
pp. 86-86
Author(s):  
G Wellwood ◽  
J K Margerison
Keyword(s):  
Dairy Cattle ◽  
Somatic Cell ◽  
Milk Production ◽  
Milk Yield ◽  
Complex Disease ◽  
Economic Loss ◽  
Brown Swiss ◽  
Somatic Cell Counts ◽  
Cell Counts ◽  
Holstein Friesian

Mastitis is a complex disease causing inflammation of the udder, which has been estimated to cost the dairy farmer between £40-£117/cow per year (Stott et al., 2002). Economic loss occurs as a result of discarded milk, reduced milk yield and milk quality, increased vet costs and an increase in replacement costs. The objective of this study was to examine the effect of breed on the incidence of mastitis and somatic cell counts and milk production capabilities of Holstein Friesian, Brown Swiss and Brown Swiss crossbred cows.

Replacing wheat with canola meal and maize grain in the diet of lactating dairy cows: Feed intake, milk production and cow condition responses

2017 ◽  
Vol 84 (3) ◽  
pp. 240-247 ◽  
Author(s):  
Ruairi P McDonnell ◽  
Martin vH Staines
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Fat ◽  
Milk Protein ◽  
Daily Intake ◽  
Canola Meal ◽  
Grass Silage ◽  
Holstein Friesian ◽  
Maize Grain ◽  
The Difference

This research paper describes the effect of partially replacing wheat with maize grain and canola meal on milk production and body condition changes in early lactation Holstein-Friesian dairy cows consuming a grass silage-based diet over an 83-d period. Two groups of 39 cows were stratified for age, parity, historical milk yield and days in milk (DIM), and offered one of two treatment diets. The first treatment (CON) reflected a typical diet used by Western Australian dairy producers in summer and comprised (kg DM/cow per d); 8 kg of annual ryegrass silage, 6 kg of crushed wheat (provided once daily in a mixed ration), 3·6 kg of crushed lupins (provided in the milking parlour in two daily portions) and ad libitum lucerne haylage. The second treatment diet (COMP) was identical except the 6 kg of crushed wheat was replaced by 6 kg of a more complex concentrate mix (27% crushed wheat, 34% maize grain and 37% canola meal). Lucerne haylage was provided independently in the paddock to all cows, and no pasture was available throughout the experiment. The COMP group had a greater mean overall daily intake (22·5vs20·4 kg DM/cow) and a higher energy corrected milk (ECM) yield (29·2vs27·1 kg/cow;P= 0·047) than the CON cows. The difference in overall intake was caused by a higher daily intake of lucerne haylage in COMP cows (4·5vs2·3 kg DM/cow). The CON group had a higher concentration of milk fat (42·1vs39·3 g/kg;P= 0·029) than COMP cows. Milk protein yield was greater in COMP cows (P< 0·021); however, milk fat yield was unaffected by treatment. It is concluded that partially replacing wheat with canola meal and maize grain in a grass silage-based diet increases voluntary DMI of conserved forage and consequently yields of ECM and milk protein.

EFFECTS OF LOW FLUCTUATING TEMPERATURES ON FARM ANIMALS.: III. INFLUENCE OF AMBIENT AIR TEMPERATURE ON FEED INTAKE OF LACTATING HOLSTEIN-FRIESIAN COWS

1958 ◽  
Vol 38 (2) ◽  
pp. 148-159 ◽  
Author(s):  
M. A. MacDonald ◽  
J. M. Bell
Keyword(s):  
Milk Production ◽  
Air Temperature ◽  
Low Temperatures ◽  
Ambient Air ◽  
Feed Consumption ◽  
Ambient Temperatures ◽  
Ambient Air Temperature ◽  
Holstein Friesian ◽  
Cent Level ◽  
Friesian Cows

This report presents effects of low temperatures on the feed consumption and efficiency of milk production of six mature, lactating, Holstein-Friesian cows that were confined in stanchions for three fortnightly experimental periods during which ambient temperatures measured in degree-hours per day (d-h/day) ranged from 110 to 1152 and daily minimum ambient air temperature (DMAAT) varied from 0° to 38°F. Applying results obtained, it was calculated that as temperatures decreased, i.e., d-h/day increased from 100 to 1200 and DMAAT decreased from 40° to 0°F, average daily intakes of total dry matter, hay, and gross and digestible Calories increased approximately 6.4 lb., 5.3 lb., 13 Therms and 9 Therms, respectively. Each of these increases was statistically significant at the 1 per cent level. Reductions in temperature also decreased gross and net caloric efficiencies of milk production approximately 10 and 8.5 per cent, respectively. These decreases were significant at the 2 per cent level. No correlation was evident between crude protein utilization and temperature.Results indicated that thermal stress was not overcome adequately by supplementary hay intake alone and that appetite stimulation by low temperatures had a carry-over effect continuing at least 24 hours. For continued efficient milk production during winters where low ambient temperatures are prevalent these results suggest it is necessary to provide some form of building insulation, ambient heat and/or provide a high energy supplement to otherwise adequate production rations.

scholarly journals Development of calving ease evaluations for UK Holstein-Friesian cows

2010 ◽  
Vol 1 (1) ◽  
pp. 69-69 ◽  
Author(s):  
E Wall ◽  
R Mrode ◽  
G Banos ◽  
M Coffey
Keyword(s):  
Calving Ease ◽  
Holstein Friesian ◽  
Friesian Cows

The effect of strain of Holstein-Friesian and feeding system on grazing behaviour, herbage intake and productivity in the first lactation

2004 ◽  
Vol 78 (1) ◽  
pp. 169-178 ◽  
Author(s):  
M. Linnane ◽  
B. Horan ◽  
J. Connolly ◽  
P. O'Connor ◽  
F. Buckley ◽  
...  
Keyword(s):  
Milk Production ◽  
North American ◽  
Milk Fat ◽  
Feeding System ◽  
Stocking Rate ◽  
Concentrate Supplementation ◽  
Herbage Intake ◽  
Biting Rate ◽  
Holstein Friesian ◽  
Grazing Behaviour

AbstractA comparative study of grazing behaviour, herbage intake and milk production was conducted using three strains of Holstein-Friesian (HF) heifer : 33 high production North American (HP), 33 high durability North American (HD) and 33 New Zealand (NZ) animals. Heifers were assigned, within strain, to one of three grass-based feeding systems : (1) the Moorepark (control) system (MP), (2) a high concentrate system (HC), (3) a high stocking rate system (HS). Strain of HF had no significant effect on grazing time or number of grazing bouts. The NZ strain had longer grazing bouts (P< 0.01) and spent a lower proportion of time ruminating (P< 0.05) than both the HP and HD strains. There was a significant strain ✕ feeding system interaction for biting rate. The biting rate of the NZ strain was reduced in the HC system. Biting rates in the HS feeding system were significantly higher (P< 0.001) than in the MP system. Heifers on HC had shorter grazing time (P< 0.01) with grazing bouts of shorter duration (P< 0.01). Increasing stocking rate (HS) decreased the proportion of time ruminating (P< 0.001) and tended to shorten grazing bouts (P = 0.06). The HP strain had higher (P< 0.05) herbage and total dry matter (DM) intakes than the NZ strain, while the HD strain was intermediate. Concentrate supplementation reduced (P< 0.001) herbage DM intake but increased (P< 0.001) total DM intake. The reduction of herbage DM intake per kg of concentrate DM intake (substitution rate) was greater for the NZ than the HP strain. The HP produced significantly higher milk, fat, protein and lactose yields than the NZ, while the HD strain was intermediate. The milk fat content of the NZ was higher than both the HP and HD strains, while the protein content was higher than the HP strain. Concentrate supplementation (HC v . MP) significantly increased yields of milk and milk components. Milk production responses to the HC system were much greater with the HP than the NZ strain. Increasing stocking rate (MP v . HS) significantly decreased milk protein yield. The results indicate that the choice of strain of HF may depend on the feeding system.

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