Effects of grazing adaptation on herbage intake, milk production, and body weight change in lactating dairy cows after turning out to pasture in early spring

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Tomohiro Mitani ◽  
Sawako Nakajima ◽  
Seongjin Oh ◽  
Masahito Kawai ◽  
Koichiro Ueda
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Milk Production ◽  
Weight Change ◽  
Early Spring ◽  
Body Weight Change ◽  
Lactating Dairy Cows ◽  
Herbage Intake

Prediction of body weight and composition in lactating dairy cows: Relationship between body condition score and body composition

2005 ◽  
Vol 2005 ◽  
pp. 19-19
Author(s):  
T. Yan ◽  
R. E. Agnew ◽  
C. S. Mayne
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Dairy Cows ◽  
Milk Production ◽  
Body Condition ◽  
Body Condition Score ◽  
Early Lactation ◽  
Lactating Dairy Cows ◽  
Condition Score ◽  
Body Concentration

Body condition of lactating dairy cows varies at different stages of lactation. Cows usually mobilise their body reserves to provide energy and protein for milk production in early lactation, and gain weight to deposit energy and protein for pregnancy at a later stage. The objective of the present study was to examine relationships between body condition score (CS) and body concentration of lipid, CP and energy.

The summer nutrition of weaner sheep: The voluntary feed intake, body weight change, and wool production of sheep grazing the mature herbage of sown pasture in relation to the intake of dietary energy under a supplementary feeding regime

1969 ◽  
Vol 20 (3) ◽  
pp. 499 ◽  
Author(s):  
WG Allden
Keyword(s):  
Body Weight ◽  
Weight Change ◽  
Nitrogen Concentration ◽  
Metabolizable Energy ◽  
Supplementary Feeding ◽  
Summer Drought ◽  
Body Weight Change ◽  
Digestible Energy ◽  
Wool Production ◽  
Herbage Intake

The effect on herbage intake of feeding energy-rich supplements to weaner sheep during periods of summer drought was examined in two field studies in a Mediterranean environment. The total intake of digestible energy (DE) and of dry matter (DM) by each sheep was also measured, and the relation of DE intake to body weight, body weight change, and wool production was studied under these supplementary feeding regimes. In both experiments the sheep grazed sown pastures which provided low quality mature herbage (DM digestibility 45-49 %) in plentiful amounts (> 800 kg DM/acre). A new method of estimating herbage digestibility based on direct weighings of the animal before and after a period of restricted grazing, was used in one experiment. The estimate of DM intake by this method was less by 5% than the value derived from a regression equation based on faecal nitrogen concentration. The results of the two studies were in good agreement. For each 100 g supplement (up to levels of 400 g DM/day) the intake of herbage decreased by 65-69 g. The daily digestible energy intake needed to maintain wool-free body weight was 176 kcalDE/kg W0.75 (equivalent to about 144 kcal metabolizable energy/kg W0.75). This value is substantially higher than the results recorded for pen-feeding experiments but is comparable with other results recorded for the grazing sheep. The production of each additional gram of clean wool was associated with an increased intake of 52 g digestible DM (230 kcal DE). However, because herbage intake was reduced when a supplement was fed, it was in fact necessary to provide 86 g DE as a supplement (i.e. 65 % more than is indicated by the previous value) in order to produce an additional gram of clean wool.

Effects of grass height at the start of grazing on herbage intake and milk production under rotational grazing by lactating dairy cows

2006 ◽  
Vol 52 (4) ◽  
pp. 175-180 ◽  
Author(s):  
H. Nakatsuji ◽  
Y. Nishimichi ◽  
M. Yayota ◽  
M. Takahashi ◽  
K. Ueda ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Rotational Grazing ◽  
Lactating Dairy Cows ◽  
Herbage Intake

Body weight change and fertility of dairy cows

1972 ◽  
Vol 20 (4) ◽  
pp. 47-48 ◽  
Author(s):  
K. Moller ◽  
P. Shannon
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Weight Change ◽  
Body Weight Change
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