A note on a method of overcoming the effect of udder disease or injury in experiments involving milk yield and composition

1961 ◽  
Vol 28 (1) ◽  
pp. 75-79 ◽  
Author(s):  
R. Waite

SummaryIn experiments to determine the effect of feeding changes on milk yield and composition, udder disease or injury may easily invalidate the results, particularly those for milk composition. It is suggested that regular examination of the milk from each quarter of the udder would allow a diseased or injured quarter to be recognized and a true value for the effect of the feeding treatment to be obtained from the composition of the milk from at least two healthy quarters. Examples to illustrate the suggestion are given.

2019 ◽  
Vol 15 (02) ◽  
pp. 39-41
Author(s):  
H H Panchasara ◽  
A B Chaudhari ◽  
D A Patel ◽  
Y M Gami ◽  
M P Patel

The study was conducted to evaluate the effect of feeding herbal galactogogue preparation (Sanjivani biokseera) on the milk yield and milk constituents in lactating Kankrej cows. Thirty-two lactating Kankrej cows in their 1st to 6th lactation were taken for the experiment from 3 days after calving up to 52 days postpartum. All the animals were fed as per the standard seasonally available roughages and concentrates to meet their nutritional requirements. The cows were randomly divided into two uniform groups of 16 cows in each according to initial milk yield and milk composition. The animals in group-I were not given any supplement and served as control. The animals in group-II were given Sanjivani biokseera (Naturewell Industries) @ 60 g per day for 1-month, commencing 3 days after calving, in addition to the usual feeds/fodders. A clear difference was observed in milk yield from day 8 onward of experiment between groups with significant (plessthan0 0.05) higher values from day 16-52 in cows fed herbal galactogogue as compared to control, but no such distinct effect on milk constituents was observed on day 52 when analyzed. The use of herbal galactogogue significantly (p lessthan 0.05) increased the overall average of 52 days milk production, which was 9.34 ± 0.21 lit/day in supplemented as compared to 7.75 ± 0.26 lit/day in control animals. It was concluded that herbal galactogogue (Sanjivani biokseera) could increase milk yield in lactating dairy cows through its galactopoetic property and improved rumen environment.


1991 ◽  
Vol 62 (7) ◽  
pp. 636-644
Author(s):  
Takamitsu AII ◽  
Mitsunori KURIHARA ◽  
Kyouji SHIRAISHI ◽  
Masanobu TAMAKI ◽  
Yoshio CHIBA

1997 ◽  
Vol 77 (4) ◽  
pp. 735-737 ◽  
Author(s):  
W. C. Gardner ◽  
M. A. G. von Keyserlingk ◽  
J. A. Shelford ◽  
L. J. Fisher

Twenty–one multiparous Holsteins were used in a cross over design with two 28-d periods. Cows were randomly assigned to two treatments to assess the effect of textured and pelleted concentrates fed with alfalfa cubes on feed intake, milk yield, milk composition and rumen volatile fatty acid concentrations. Those animals receiving the textured concentrate had significantly (P < 0.05) higher milk yield and milk fat percentage than did those animals fed the pelleted concentrate. A significant difference in the ratio of milk protein to milk fat was also observed with the cows receiving the pelleted concentrate having a ratio of 1.31 and the cows receiving the textured concentrate a ratio of 1.02. No significant (P < 0.05) differences were observed between the textured and pelleted feeds in total or individual volatile fatty acid concentrations. These results indicate that the feeding of textured concentrates can lead to an increase in milk fat production when compared with the feeding of pelleted concentrates. Key words: Dairy cattle, milk composition, textured and pelleted concentrate, VFA


2000 ◽  
Vol 2000 ◽  
pp. 101-101
Author(s):  
J K Margerison ◽  
B. Winkler ◽  
K. Mowll ◽  
R. Derrick ◽  
E. Mcintosh ◽  
...  

Feeding the dairy cow during the transition phase (dry to lactating) has been found to effect subsequent feed intake and milk yield (Moorby et al., 1996; Olsson et al., 1998). The aim of this study was to compare the effect of feeding a liquid feed during the prepartum period on; feed intake, milk yield, milk composition, live weight loss and blood metabolite levels.


Author(s):  
Tushar Rajendra Bhosale ◽  
Gorakshanath Raosaheb Antre ◽  
Dheeraj Kumar ◽  
Rajendra Kumar Pandey

Background: The study was carried out at the Dairy farm of Banaras Hindu University, Dist. Varanasi (Uttar Pradesh). Twelve (12) Sahiwal and Hariana cows ranging 4 - 6 years of age was randomly selected for present investigations. Animals were stratified for their initial body weight and age. The objective of the study was to compare the effect of feeding chelated mineral based formulation on dairy cow production performance, namely milk yield and milk composition. Methods: The trial was conducted with dairy cows 3 - 4 months of lactation. The experimental treatments included: Fedamin (Chelated minerals, given 50 gm. /day/ cow) and control. The study lasted from 0 to 30 days. Milk yield and milk composition of cows were measured individually on days 1, 8, 15, 22 and 30. Result: The Fedamin treated group (Chelated minerals) improved the milk yield and fat percentage in milk during this study as compared to control and specific gravity, solid-not fat, protein, lactose and total solids of milk differ non-significantly.


1956 ◽  
Vol 23 (1) ◽  
pp. 1-12 ◽  
Author(s):  
W. Holmes ◽  
R. Waite ◽  
D. S. MacLusky ◽  
J. N. Watson

1. The effect of feeding levels of protein and energy appreciably higher than the Woodman standards on the yield and composition of the milk from twelve Ayrshire cows has been studied in two winter-feeding experiments.2. In the first experiment the S.E. of the concentrate ration was held constant at 63½% and the D.C.P. content adjusted to 10, 15 and 17%. The 10 and 15% D.C.P. concentrates derived their protein from home-grown feedingstuffs, whereas the 17% D.C.P. concentrate was a bought-in commercial mixture. Feeding the three levels of D.C.P. led to no statistically significant differences in milk yield, milk composition or live-weight gain, although the commercial mixture (17% D.C.P.) resulted in milk with a slightly lower fat content.3. The second experiment reversed the feeding conditions of the first, i.e. D.C.P. was held constant at 16% and three concentrates were fed which contained 59, 67 and 75% S.E. respectively. The two rations of higher S.E. content gave significantly more milk than the low S.E. ration and tended to give slight increases in live weight. There was a slight increase in the S.N.F. content of the milk when the S.E. of the concentrate was raised from 59 to 67% S.E. This was due almost entirely to an increase in the protein content of the milk. There was no further increase in S.N.F. with the 75% S.E. concentrate, and this latter concentrate produced milk with a slightly lower fat content.4. Comparison of costs and returns showed that the cheap low protein concentrate, ration C, even though it gave the least milk, yielded the highest profit. It was shown, however, that at any reasonable fixed cost of starch equivalent the most profitable level of feeding above the Woodman maintenance standard was 3–3·3 lb. S.E./10 lb. of milk of 3·8–4·0% fat. Alternatively, the total ration should be 110–117% of the Woodman standard.


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