scholarly journals The effect of feeding dairy heifers diets with and without supplemental phosphorus on growth, reproductive efficiency, health, and lactation performance

2011 ◽  
Vol 94 (12) ◽  
pp. 6233-6242 ◽  
Author(s):  
D.W. Bjelland ◽  
K.A. Weigel ◽  
P.C. Hoffman ◽  
N.M. Esser ◽  
W.K. Coblentz
Keyword(s):  
Reproductive Efficiency ◽  
Lactation Performance ◽  
Dairy Heifers ◽  
Effect Of Feeding

The effect of dam’s parity on the first lactation performance of dairy heifers

1986 ◽  
Vol 1986 ◽  
pp. 102-102
Author(s):  
S. J. Furniss ◽  
A. Stroud ◽  
H. Barrington ◽  
S. P. J. Kirby ◽  
J. P. Wray ◽  
...  
Keyword(s):  
Market Value ◽  
Breeding Programme ◽  
Lactation Performance ◽  
Beef Breed ◽  
Genetic Merit ◽  
Dairy Heifers ◽  
Beef Bull ◽  
Dairy Bulls ◽  
First Time ◽  
Genetic Index

Whether they are planning to calve for the first time at two or three years old Many farmers choose to serve their maiden dairy heifers (animals not previously served, (M. A. F. F. 1985)) with a beef breed recognised for giving easier calvings .Often the heifer breeding programme is not well supervised and it is a matter of convienience to use a resident beef bull.There are however,considerable advantages to serving heifers with dairy bulls including an increased number of heifer calves for selection or the ability to serve older, nature cows (animals that have commenced at least their first lactation (M. A. F. F. 1985))with a continental beef breed giving large calves of higher market value. Because heifers tend to be calved as a group they provide a batch of calves which can be concentrated upon, easing management and improving control over performance.If heifers are served by bulls of as higher genetic merit as would normally be used on cows then increased genetic turnover will raise the genetic index in the younger dam which should be reflected in her daughter’s performance.

Effect of feeding rumen-protected rice bran on mineral status of non-lactating dairy heifers

2010 ◽  
Vol 95 (1) ◽  
pp. 73-80 ◽  
Author(s):  
J. Martín-Tereso ◽  
C. Distefano ◽  
H. van Laar ◽  
K. Mulder ◽  
L. A. den Hartog ◽  
...  
Keyword(s):  
Rice Bran ◽  
Mineral Status ◽  
Dairy Heifers ◽  
Effect Of Feeding

scholarly journals Urinary nitrogen concentration from dairy heifers grazing kale supplemented with either plantain or perennial ryegrass baleage in winter

2016 ◽  
Vol 78 ◽  
pp. 99-102 ◽  
Author(s):  
H.G. Judson ◽  
G.R. Edwards
Keyword(s):  
Perennial Ryegrass ◽  
Nitrate Leaching ◽  
Nitrogen Concentration ◽  
Urine Samples ◽  
Dairy Heifers ◽  
N Concentration ◽  
Dairy Heifer ◽  
N Loading ◽  
Effect Of Feeding ◽  
Urinary Nitrogen

The effect of feeding two different supplements (perennial ryegrass or plantain baleage) on urinary nitrogen (N) excretion from dairy heifers (8 months old, 180 kg liveweight (LW)) grazing kale was examined in two successive winters. Heifers (n=90 and 80 in Years 1 and 2, respectively) were offered 2.5 kg DM kale/100 kg LW/day and approximately 3 kg DM/heifer/day of either perennial ryegrass or plantain baleage. Urine samples were collected 2-4 times throughout winter, acidified and frozen before N analysis. Despite similar apparent N-intake, urinary N concentration from heifers supplemented with plantain baleage (0.36% N) was lower (P0.05) for heifers fed either supplement. The results indicate that feeding plantain baleage to dairy heifers grazing kale in winter may be a useful approach to decrease the N loading in urine patches with subsequent reductions in nitrate leaching. Keywords: dairy heifer, kale, plantain, urinary nitrogen

80 Relationship between anogenital distance and reproductive efficiency of embryo recipient dairy heifers

2022 ◽  
Vol 34 (2) ◽  
pp. 276
Author(s):  
A. Garcia-Guerra ◽  
R. Sala ◽  
L. Carrenho-Sala ◽  
F. Valencia ◽  
M. Fosado ◽  
...  
Keyword(s):  
Reproductive Efficiency ◽  
Anogenital Distance ◽  
Dairy Heifers
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