Effect of dietary protein fluctuations and space allocation on performance and carcass quality of growing-finishing pigs1

2003 ◽  
Vol 81 (11) ◽  
pp. 2783-2791 ◽  
Author(s):  
M. S. Edmonds ◽  
D. H. Baker
Keyword(s):  
Dietary Protein ◽  
Carcass Quality ◽  
Space Allocation ◽  
Protein Fluctuations

Effects of Dietary Protein Level and Environmental Temperature on Performance and Carcass Quality of Growing-Finishing Swine

1964 ◽  
Vol 23 (2) ◽  
pp. 375-379 ◽  
Author(s):  
E. W. Seymour ◽  
V. C. Speer ◽  
V. W. Hays ◽  
D. W. Mangold ◽  
T. E. Hazen
Keyword(s):  
Dietary Protein ◽  
Protein Level ◽  
Environmental Temperature ◽  
Carcass Quality ◽  
Dietary Protein Level

A note on the effect of protein concentration in the diets of pregnant sows on the performance and carcass quality of their progeny

1966 ◽  
Vol 8 (2) ◽  
pp. 337-339 ◽  
Author(s):  
R. M. Livingstone ◽  
R. M. MacPherson ◽  
F. W. H. Elsley ◽  
I. A. M. Lucas ◽  
G. A. Lodge
Keyword(s):  
Birth Weight ◽  
Dietary Protein ◽  
Protein Concentration ◽  
Practical Importance ◽  
Longissimus Dorsi ◽  
Muscle Fibres ◽  
Carcass Quality ◽  
Subsequent Performance ◽  
The Mean

Livingston (1962) showed that high levels of dietary protein during pregnancy increased the mean thickness of muscle fibres of M. longissimus dorsi and M. psoas majoris in newly-born piglets. Livingston did not detect this effect in pigs killed at pork weight. Preliminary results of Elsley and MacPherson (1964) indicated that the concentration of dietary protein during pregnancy can influence the nitrogen content of newly-born pigs when birth weight is standardised to 1 kg. to reduce variation; subsequent results (Elsley, MacPherson and McDonald, unpublished data) did not confirm these findings. Any differences attributable to the nutrition of the pregnant sow which are present in the newly-born pig are of practical importance only if they are reflected in changes in subsequent performance.

Influence of Hormone Supplementation, Dietary Protein Level and Sex on the Performance and Carcass Quality of Swine

1971 ◽  
Vol 33 (4) ◽  
pp. 780-786 ◽  
Author(s):  
E. W. Lucas ◽  
H. D. Wallace ◽  
A. Z. Palmer ◽  
G. E. Combs
Keyword(s):  
Dietary Protein ◽  
Protein Level ◽  
Carcass Quality ◽  
Dietary Protein Level

The Effect of Feeding System on the Carcass Quality of Crossbred Lambs with Texel

2020 ◽  
Vol 68 (1) ◽  
pp. 17-24
Author(s):  
Angela Cividini ◽  
Dušan Terčič ◽  
Mojca Simčič
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Carcass Quality ◽  
Quality Traits ◽  
Feeding System ◽  
Ad Libitum ◽  
Daily Gain ◽  
Effect Of Feeding ◽  
Carcass Cuts

The aim of this study was to estimate the effect of feeding system on the growth rate and carcass quality of crossbred Improved Jezersko-Solčava x Texel (JSRT) lambs and to evaluate the effect of sex on these traits. The trial was conducted in nature according to the traditional rearing systems. The trial included 44 crossbred lambs, which were born and reared until the slaughter in three different flocks. In the age of 10 days suckled lambs were offered with ad libitum corresponding diets according to the feeding system. All lambs were slaughtered in seven consecutive days by the same procedure. The effect of feeding system significantly affected daily gain from birth to slaughter, EUROP carcass conformation and shoulder width. Likewise, the effect of sex significantly affected daily gain from birth to slaughter and internal fatness of carcasses. According to carcass cuts the feeding system significantly affected only the proportion of neck and leg. Considering meat quality traits, feeding system had a significant effect on the pH 45 and CIE a* values. In this study, we could speculate that more than the feeding system the growth and the carcass traits as well as meat traits were affected by the amount of the supplement.

scholarly journals Genetic Algorithm for the Retailers’ Shelf Space Allocation Profit Maximization Problem

2021 ◽  
Vol 11 (14) ◽  
pp. 6401
Author(s):  
Kateryna Czerniachowska ◽  
Karina Sachpazidu-Wójcicka ◽  
Piotr Sulikowski ◽  
Marcin Hernes ◽  
Artur Rot
Keyword(s):  
Genetic Algorithm ◽  
Profit Maximization ◽  
Allocation Rule ◽  
Maximization Problem ◽  
Shelf Space ◽  
Allocation Model ◽  
Space Allocation ◽  
Shelf Space Allocation ◽  
To Receive

This paper discusses the problem of retailers’ profit maximization regarding displaying products on the planogram shelves, which may have different dimensions in each store but allocate the same product sets. We develop a mathematical model and a genetic algorithm for solving the shelf space allocation problem with the criteria of retailers’ profit maximization. The implemented program executes in a reasonable time. The quality of the genetic algorithm has been evaluated using the CPLEX solver. We determine four groups of constraints for the products that should be allocated on a shelf: shelf constraints, shelf type constraints, product constraints, and virtual segment constraints. The validity of the developed genetic algorithm has been checked on 25 retailing test cases. Computational results prove that the proposed approach allows for obtaining efficient results in short running time, and the developed complex shelf space allocation model, which considers multiple attributes of a shelf, segment, and product, as well as product capping and nesting allocation rule, is of high practical relevance. The proposed approach allows retailers to receive higher store profits with regard to the actual merchandising rules.

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