The performance and carcase quality of pigs fed liver meal as a protein supplement from weaning to bacon weight

1967 ◽  
Vol 7 (28) ◽  
pp. 408
Author(s):  
ACW Todd ◽  
LJ Daniels

In two group feeding trials a total of 45 Large White pigs were fed rations containing either fish meal, liver meal, or a mixture of liver and meat and bone meal, as protein supplements in rations based on sorghum grain. Performance was compared over two periods, from approximately 42 to 100 lb liveweight, and subsequently from 100 to 190 lb liveweight. Cold dressed carcases were appraised. Pigs fed fish meal grew faster and converted food more efficiently than those fed either liver meal or a mixture 408 of liver and meat and bone meal. Differences were significant during the initial period (P<0.01) and overall (P<0.05). During the initial period pigs fed liver meal grew faster (P<0.05) than those fed a mixture of liver and meat and bone meal. Pigs fed fish meal developed less backfat and a greater area index of 'eye' muscle than those fed either liver meal (P < 0.01) or a mixture of liver and meat and bone meal (IJ<0.05). They also had the highest carcase appraisal score (P<0.05). Those fed a mixture of liver and meat and bone meal developed less backfat and had a higher appraisal score than those fed liver meal as the only protein supplement (P<0.05).

1963 ◽  
Vol 3 (8) ◽  
pp. 69
Author(s):  
ACE Todd

Queensland whale meat meal and whale meat and bone meal were compared with South African fish meal as a protein supplement to a sorghum meal diet for pigs. Results were assessed & the growth of Large White pigs over a four month period. Whale meat meal was as efficient in promoting growth at a slightly lower cost than the fish meal. Whale meat and bone meal produced lower gains at a higher cost.


1958 ◽  
Vol 25 (2) ◽  
pp. 181-190 ◽  
Author(s):  
R. Braude ◽  
Pamela M. Clarke ◽  
K. G. Mitchell ◽  
A. S. Cray ◽  
A. Franke ◽  
...  

1. Results are reported of an experiment carried out under commercial conditions to obtain information on the comparative value of dried skim-milk and white fish meal as protein supplements for fattening pigs.2. There were four treatments. Control pigs (i) received a meal mixture containing 10% white fish meal, reduced to 7% from 130 lb. live weight. In the other experimental groups, the fish meal was replaced by dried skim-milk, (ii) on a weight for weight basis, (iv) on a protein basis and (iii) intermediate between (ii) and (iv). All pigs were fed the meal dry and ad lib. up to a maximum of 6½ lb./head daily. Unrestricted water was available.There were five pens of nine group-fed pigs on each treatment, involving a total of 180 pigs. The pigs were on experiment from approximately 10 weeks of age to bacon weight. Comprehensive carcass measurements were made on all the pigs.3. The results showed that a significantly better rate of growth was obtained when the white fish meal was replaced by dried skim-milk on a weight for weight basis. Increasing the percentage of skim-milk in the diet up to 15% resulted in a slightly better performance of the pigs, but no further improvement was obtained by raising the level of skim-milk to 20%. These results were discussed in relation to an apparent set-back that the control pigs suffered at the start of the experimental period.4. The inclusion of dried skim-milk in the diet had an adverse effect on the carcass grading, particularly in so far as it resulted in a thicker layer of back fat over the loin as compared with that in the control pigs.5. There was also some indication that the carcasses from the animals given dried skim-milk had slightly thicker bellies and a smaller breadth of eye muscle than the carcasses of the control animals that received fish meal.6. The results have been compared with those of an earlier trial, which was in most details the same as that reported here, the main difference being that in the earlier experiment individual feeding and one breed of pig were used.


2012 ◽  
Vol 10 (1) ◽  
pp. 169-174
Author(s):  
I Siddika ◽  
M Das ◽  
K R Sumi

A four week experiment was conducted to evaluate the effect of isoproteinous (35%) feed prepared named diet 1, 2, 3 and 4 respectively by substituting 0%, 50% , 75% and 100% fish meal with meat and bone meal in view of preparing a cost effective tilapia (Oreochromis niloticus) fry feed. The four experimental diets (diet 1 to 4) each were randomly assigned to twelve hapas with three replications. Tilapia fry (0.011g) were randomly stocked in 100 fry/9ft² hapa and fed five times a day up to their apparent satiation. The results of the study showed that the weight gain, specific growth rate (SGR), the apparent net protein utilization value and survival (%) of the fish were significantly  (P<0.05) higher and better feed utilization with lower FCR value was observed in fish fed on the diet 4 where meat and bone meal was used as sole source of protein base. There was no significant difference between the carcass moisture and lipid of fish fed with different experimental diets. The results of the study indicated that diet 1 containing fish meal (45.15% Fish meal, 27.43% Rice bran and 27.43% Wheat flour) can be replaced by meat and bone meal containing diet 4 (54.06% Meat and bone meal, 22.97% Rice bran and 22.97% Wheat flour) with no adverse effects on growth and survival of O. niloticus. Before recommendation several trials will be necessary in different farms to be  sure of the reproducibility of the result obtained in the present experiment. Cost- benefit analysis reveals that the   meat and bone meal containing diet certainly provides cheaper feed.   DOI: http://dx.doi.org/10.3329/jbau.v10i1.12110   J. Bangladesh Agril. Univ. 10(1): 169–174, 2012  


1988 ◽  
Vol 51 (10) ◽  
pp. 807-810 ◽  
Author(s):  
DILEK HEPERKAN ◽  
ÍHSAN ALPERDEN

Level of mold contamination and mycoflora were determined for 144 mixed feed and feed ingredients, including corn, sunflower cake, soja cake, meat and bone meal, and fish meal. Four samples were found to be free of mold. Among the feed samples examined, the mold count has been found to be low (102 to 103 colonies/g) for fish meal, high (104 to 105 colonies/g) for meat-bone meal and sunflower cake, and extremely high (more than 105 colonies/g) for soja cake, corn and mixed feed. The predominant flora in the feed samples consisted of Penicillium, Aspergillus, Fusarium, Mucor and Eurotium, respectively. The most frequently encountered species was found to be Penicillium aurantiogriseum, followed by Aspergillus flavus.


1967 ◽  
Vol 7 (29) ◽  
pp. 562 ◽  
Author(s):  
BR Wilson ◽  
JM Holder

Pig performance was compared on wheat based diets supplemented by two levels of either meat and bone meal or fish meal plus skim milk powder. The dry matter digestibility and nitrogen retention on these diets were determined and the effect of adding zinc to diets containing meat and bone meal was examined. At the higher level, fish meal plus skim milk powder produced greater daily gains between 60-160 lb than the meat and bone meal, but feed conversion and carcase lean were not affected. At the lower level, fish meal plus skim milk powder produced leaner carcases and greater daily gains between 60-160 lb than the meat and bone meal supplement, but had no effect on feed conversion. Between 60-100 lb, feed conversion was affected by level but not by supplement, and the higher level of fish meal plus skim milk powder produced greater daily gains than all other diets. The higher levels of each supplement produced greater nitrogen retentions and leaner carcases than the lower levels. Dry matter digestibility was least on the higher level meat and bone meal. Zinc supplements had no effect on performance.


1973 ◽  
Vol 16 (3) ◽  
pp. 315-317
Author(s):  
R. M. Livingstone

SUMMARYTwo diets, one based on barley and white-fish meal and the other on oats, wheat and meat and bone meal, with similar concentrations of digestible energy, crude protein, lysine and methionine+cystine were used to investigate the effects of sudden changes in the composition of the diet on the performance of pigs growing from 32 kg live weight, over a period of 77 days.The diets were given separately, alternated weekly with sudden changes from one diet to the other, or as a 1:1 mixture.Changes in diet per se had insignificant effects on performance.


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