Preliminary Evaluation of Slaughter Value and Carcass Composition of Indigenous Sheep and Goats from Traditional Production System in Tanzania

The growing context of globalization permanently increases pressure on the construction companies to improve their performances in order to resist to the constraints of competitiveness in the international market. It has become ineluctable to look for introducing a new alternative capable of bringing creative improvement to the traditional production system. This paper will relate mainly to the most relevant management techniques in the construction industry, and more specifically, the lean construction concept. Initially, we will determine the main characteristics of the construction industry compared to the manufacturing industry according to three levels: on-site production, one of a kind projects, and complexity. Subsequently, we will focus our attention on the main sources of waste in the construction industry. Finally, a rigorous comparative study will be carried out to show the contribution of the lean construction tools in the promotion of traditional construction especially at the level of the following factors: Creating value and eliminating waste; Planning and mutual coordination; Site organization. Lean construction as Last Planner System (LPS), Value Stream Mapping (VSM), Just-in-Time philosophy, Visual management (VM) and 5S have shown a great ability to improve the traditional production system through waste reduction, encouraging people involvement, ensuring a pull flow production, and promotion of a continuous improvement philosophy.

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Transforming traditional production system transactions to interoperable eBusiness-aware systems with the use of generic process models

International Journal of Production Research ◽

10.1080/00207540903170914 ◽

2009 ◽

Vol 48 (19) ◽

pp. 5711-5727 ◽

Cited By ~ 2

Author(s):

Sotirios Koussouris ◽

George Gionis ◽

Fenareti Lampathaki ◽

Yannis Charalabidis ◽

Dimitrios Askounis

Keyword(s):

Production System ◽

Process Models ◽

Traditional Production ◽

Generic Process

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Traditional production system of Ablo, West Africa steamed cooked moist bread

International Journal of Biosciences (IJB) ◽

10.12692/ijb/11.4.263-271 ◽

2017 ◽

Vol 11 (4) ◽

pp. 263-271

Keyword(s):

West Africa ◽

Production System ◽

Traditional Production

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Ecosystem services and use of Afro-descendant land in the Colombian North Pacific: Transformations in the traditional production system

Land Use Policy ◽

10.1016/j.landusepol.2018.01.043 ◽

2018 ◽

Vol 75 ◽

pp. 631-641 ◽

Cited By ~ 1

Author(s):

Laura Lozada Ordóñez ◽

Denise Dias da Cruz ◽

Maristela Oliveira de Andrade

Keyword(s):

Ecosystem Services ◽

North Pacific ◽

Production System ◽

Traditional Production

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Effect of Different Slaughter Weights on Slaughter and Carcass Traits of Male Karayaka Lambs Reared under Intensive Production System

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v3i6.406-412.380 ◽

2015 ◽

Vol 3 (6) ◽

pp. 406

Author(s):

Yüksel Aksoy ◽

Zafer Ulutaş

Keyword(s):

Production System ◽

Consumer Preferences ◽

Carcass Traits ◽

Live Weight ◽

Red Meat ◽

Carcass Composition ◽

Market Conditions ◽

Feed Material ◽

Animal Material ◽

Ad Libitum

The present study was conducted to investigate the carcass traits of Karayaka lambs slaughtered at different slaughter weights (SWs) and to find out optimum SWs. Male Karayaka lambs with 20 kg live weight (n=30) constituted the animal material of the study. Lambs were randomly divided into five SW groups; 30 (GI; n=6), 35 (GII; n=6), 40 (GIII; n=6); 45 (GIV; n=6) and 50 (GV; n=6) kg. Lamb fattening feed (concentrate feed, ad libitum) and forage (lentil straw, 100g/lamb/day) were used as the feed material. Lambs were sent to slaughter at target SWs. Following the slaughter, non-carcass components, tailless hot and cold carcass weights were taken. Carcasses were separated into six sections as leg, foreleg, back, loin, neck and others. Physical dissection was performed to investigate carcass composition. Only the differences in carcass dressing and skin percentages of slaughter groups were not found to be significant. Increasing carcass fat percentages and decreasing carcass lean and bone percentages were observed with increasing SWs. Considering the consumer preferences, current findings revealed that Karayaka lambs should be sent to slaughter at weights between 30-35 kg. However, considering the red meat deficit of the country, current market conditions and producer preferences, the optimum SW for Karayaka lambs were recommended to be between 40-45 kg.

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Reduced age at slaughter in youthful beef cattle: Effects on carcass merit traits

Canadian Journal of Animal Science ◽

10.4141/cjas2012-014 ◽

2012 ◽

Vol 92 (4) ◽

pp. 449-463 ◽

Cited By ~ 12

Author(s):

Ó. López-Campos ◽

J. A. Basarab ◽

V. S. Baron ◽

J. L. Aalhus ◽

M. Juárez

Keyword(s):

Beef Cattle ◽

Production System ◽

Production Systems ◽

Negative Impact ◽

Carcass Traits ◽

Carcass Composition ◽

System Effect ◽

Quality Grade ◽

Main Production ◽

Carcass Merit

López-Campos, Ó., Basarab, J. A., Baron, V. S., Aalhus, J. L. and Juárez, M. 2012. Reduced age at slaughter in youthful beef cattle: Effects on carcass merit traits. Can. J. Anim. Sci. 92: 449–463. Two-hundred and twenty-four spring-born British×Continental crossbred steers were used in a 2-yr project to evaluate the effect of production system (calf-fed vs. yearling-fed) and its interaction with breed cross and hormone implant strategies, with and without β-adrenergic agonist on carcass characteristics. Carcasses from yearling-fed steers were 32% heavier (P<0.001), resulting in higher (P<0.05) dressing percentages, grade fat and rib-eye (longissimus thoracis) area (REA) (1.1, 32 and 10%, respectively). However, despite being lighter, the estimated lean yield percentage was 3% greater (P=0.010) in carcasses from calf-fed steers. No difference (P>0.05) was observed for marbling scores between production systems. Use of hormonal implants increased (P<0.001) weights of live animals and carcasses (7 and 9%, respectively). However, non-implanted yearling-fed steers had the lowest proportion of Canada Quality Grade A and the highest proportion of Canada Quality Grade AAA carcasses (P<0.001). Moreover, the observed increase (P=0.016) in marbling scores (up to 37%) from British cross-bred steers disappeared with the use of implants. The only effect observed on carcass traits from the use of β-adrenergic agonists was an increase of 6% in REA (P=0.032). The main production system effect observed for carcass composition was a lower (P=0.008) proportion of bone in carcasses from yearling-fed steers. The use of hormonal implants increased (P<0.001) the proportion of lean and decreased (P=0.019) the proportion of fat (P<0.05). Overall carcass composition of steers with large Continental influence (>50%) had a higher proportion of lean and bone and a lower proportion of fat than carcasses from 50–75% British steers (P<0.001), which was also reflected in the composition of several individual primal cuts (e.g., rib, short-loin, flank, chuck and plate). The interactions amongst production systems and the other production factors studied were minimal. Therefore, despite expected differences in carcass size, reducing age at slaughter did not have a negative impact on Canadian beef carcass traits.

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