Hostname: page-component-84b7d79bbc-lrf7s Total loading time: 0 Render date: 2024-07-30T07:01:22.744Z Has data issue: false hasContentIssue false
  • English
  • Français

701. A comparison of dried skim-milk and white fish-meal as protein supplements for fattening pigs

Published online by Cambridge University Press:  01 June 2009

R. S. Barber ,
R. Braude  and
K. G. Mitchell
R. S. Barber
Affiliation:
National Institute for Research in Dairying, University of Reading
R. Braude
Affiliation:
National Institute for Research in Dairying, University of Reading
K. G. Mitchell
Affiliation:
National Institute for Research in Dairying, University of Reading
Get access Rights & Permissions [Opens in a new window]

Extract

1. Thirty-six 9–11-week-old Large White pigs in nine blocks of four litter-mates were individually fed on diets containing either white fish-meal or various amounts of dried skim-milk as the protein supplement. The pigs were fed according to live weight and a scale up to a maximum of 6½ 1b. of meal/pig/day.

2. There were no significant differences in rate of growth or efficiency of food utilization between pigs given the diets containing as protein supplements either 10% white fish-meal reduced to 7% at 130 1b. live weight, 10% dried skim-milk reduced to 7%, or 15% dried skim-milk reduced to 10½%.

There was, however, a trend towards an improvement in both rate of growth and efficiency of food utilization with increasing levels of skim-milk in the ration, and the differences between the high skim-milk diet (20 reduced to 14%) and the low (10 reduced to 7%), and also between the former and the fish-meal diet, reached statistical significance.

3. The difficulties of drawing any definite conclusions from the results about the relative value of the protein in white fish-meal and dried skim-milk were discussed in relation to (a) the probability that the white fish-meal diet used contained over-generous supplies of protein, and (b) the higher energy value of dried skim-milk as compared with white fish-meal.

4. The commercial grading of pigs on all four treatments was very good. The carcass measurement data indicated a tendency for the skim-milk diets, particularly those containing either 10 or 15%, to result in some increase in both back fat and belly thickness. The possibility that this was associated with the higher energy/protein ratios in the skim-milk as compared with the white fish-meal diets was discussed.

Type
Original Articles
Information
Journal of Dairy Research , Volume 25 , Issue 1 , February 1958 , pp. 119 - 124
Copyright
Copyright © Proprietors of Journal of Dairy Research 1958

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

(1)Woodman, H. E. (1954). Bull. Minist. Agric., Lond., no. 48.Google Scholar
(2)Braude, R. & Mitchell, K. G. (1951). J. Minist. Agric. 57, 501.Google Scholar
(3)McMeekan, L. C. P. (1940). J. Agric. Sci. 30, 276.CrossRefGoogle Scholar
(4)Barber, R. S., Braude, R. & Mitchell, K. G. (1957). J. Agric. Sci. 48, 347.CrossRefGoogle Scholar
(5)Woodman, H. E. & Evans, R. E. (1945). J. Agric. Sci. 35, 133.CrossRefGoogle Scholar