scholarly journals Economic values for traits of pigs in Hungary

2010 ◽  
Vol 55 (No. 4) ◽  
pp. 139-148 ◽  
Author(s):  
L. Houška ◽  
M. Wolfová ◽  
I. Nagy ◽  
Z. Csörnyei ◽  
I. Komlósi
Keyword(s):  
Field Test ◽  
Economic Model ◽  
Economic Values ◽  
Lean Meat ◽  
Reproduction Traits

Marginal economic values for production and reproduction traits of pigs were estimated applying a bio-economic model to Hungarian commercial sow herds with integrated fattening of piglets. Data collected between 2002 and 2008 were used for the calculation. Marginal economic values (in € per unit of the trait per sow per year) estimated for fattening days in the station test, age at the end of the field test, lean meat percentage in the carcass, percentage of valuable cuts in the carcass and the number of piglets born alive were 2.84 €/day, 2.71 €/day, 22.45 €/%, 28.81 €/% and 54.22 €/piglet in the first litter, respectively.  

scholarly journals Economic values of pork production related traits in Finland

2008 ◽  
Vol 16 (2) ◽  
pp. 79 ◽  
Author(s):  
T. SERENIUS ◽  
P. MUHONEN ◽  
K. STALDER
Keyword(s):  
Meat Quality ◽  
Genetic Gain ◽  
Economic Model ◽  
Production System ◽  
Meat Production ◽  
Production Traits ◽  
Feed Conversion ◽  
Economic Values ◽  
Pork Production ◽  
Lean Meat

The objective of the present study was to estimate economic values for sow efficiency and meat production traits in the Finnish pork production system including the consideration for subsidies. Economic values were estimated by developing a bio-economic model that describes the Finnish production system. Genetic improvement estimates for meat production traits were also developed in order to evaluate how much genetic gain is reduced due to selection for meat quality. Results showed that the highest economic values, when expressed in genetic standard deviations, were obtained for total number of piglets born (€2.07 per piglet), feed conversion ratio (€2.07 per feed unit per kg), and lean meat percentage (€1.69 per %). Economic values for litter size, piglet mortality, sows length of productive life, and lean meat percentage increased when subsidies were not accounted for in the bio-economic model. Results show further that meat quality should have 15–20 percent weight in the Finnish production trait index in order to prevent its deterioration. When the selection weights are 15–20% for meat quality, the expected loss in genetic gain is approximately 3 percent for other production traits when compared to selection indices where meat quality traits are not included.;

scholarly journals Planungsrechnungen zur Optimierung von Zuchtplänen der Rasse Merinofleischschaf

1999 ◽  
Vol 42 (3) ◽  
pp. 267-280
Author(s):  
U. Müller ◽  
K. Strittmatter ◽  
G. Nitter
Keyword(s):  
Field Test ◽  
Genetic Gain ◽  
The Other ◽  
Test Scheme ◽  
Progeny Testing ◽  
Basic Scheme ◽  
Lean Meat ◽  
Meat Content ◽  
Selection Strategies ◽  
Step Selection

Abstract. Title of the paper: Alternative selection strategies for the Mutton Merino breed to optimize breedine Systems This paper deals with the investigation of alternative selection strategies for the Mutton Merino breed to improve lamb meat production and fertility. A main topic is the application of ultrasonic scanning to evaluate the meat content on live animals. The aim of model calculations was the optimisation and comparison of five different selection strategies within three different schemes of gene dissimation. First a basic scheme was defined and optimised (selection on field records, one-step selection, no scanning). It was regarded as the reference scheme to which all other breeding Systems were related. The following schemes considered both, selection with and without scanning. A second scheme, also based on field records, includes two-step selection of rams (called improved field test scheme). In a third and fourth scheme a level of uniform environment was assumed for ram progeny testing. These are a central testing Station on the one hand with slaughtering and carcass evaluation on progeny, and one or more contract farms on the other (without slaughtering). For a fifth selection scheme an open nucleus was assumed with ram progeny testing in associated test herds. In a dcterministic approach using the ZPLAN Computer program, the monetary genetic gain for the breeding objeetive (traits lambs weaned, litter weight at weaning, postweaning daily gain and lean meat content) and the profit were calculated for each scheme after optimisation of various biological-technical coefficients. The highest profit was achieved with a nucleus scheme (DM 9,16). Due to low recording costs the basic scheme was second (DM 7,19) and, because of high costs, the Station scheme was last (DM 4,22). The other two schemes were intermediate (DM 6,98 for the scheme with contract farms and DM 6,58 for the improved field test scheme). On an average over all schemes, scanning resulted in a 0,24 DM (i.e. almost 30 per cent) increase of the monetary genetic gain and a threefold higher genetic gain for lean meat percentage. In all schemes scanning lead also to a higher profit because the higher retum of selection based on scanning exceeded the higher costs.

scholarly journals Deriving economic values for national sheep breeding objectives using a bio-economic model

2019 ◽  
Vol 227 ◽  
pp. 44-54 ◽  
Author(s):  
A. Bohan ◽  
L. Shalloo ◽  
P. Creighton ◽  
D.P. Berry ◽  
T.M. Boland ◽  
...  
Keyword(s):  
Economic Model ◽  
Economic Values ◽  
Sheep Breeding ◽  
Breeding Objectives

Calculating economic values for turkeys using a deterministic production model

2009 ◽  
Vol 89 (2) ◽  
pp. 201-213 ◽  
Author(s):  
B J Wood
Keyword(s):  
Economic Model ◽  
Economic Value ◽  
Production Model ◽  
Feed Consumption ◽  
Production Traits ◽  
Breast Meat ◽  
Economic Values ◽  
High Fecundity ◽  
Production Chain ◽  
Breeding Objectives

Modern poultry breeding has been successful in achieving significant gains in production due to high fecundity, relatively short generation interval (in comparison with other species) and, last, the application of scientific processes in genetic evaluation. The objective of this paper was to document the development of an economic model relevant to the integrated turkey industry and to use the model to describe appropriate breeding objectives by calculating economic values for important production traits. The industry was modelled from the multiplier breeder down through to the processor. Each level in the production chain used a unit of production such as a live poult produced, a carcass delivered at the processing plant or a processed unit of meat to scale between different production divisions. Growth rate, feed consumption and breast meat yield all had similar relative economic value, while the reproductive traits (egg production, fertility and hatchability) had similar economic values to each other, but were smaller in comparison with the commercial production traits. The model was sensitive to assumed costs, such as feed price and, also for assumed returns in the form of breast meat value, and, as a consequence, care must be taken in the assumed pricing structure when calculating economic values for turkey breeding.Key words: Economic model, economic value, turkeys, breeding objectives

scholarly journals Bio-economic Model Predicts Economic Values for Beef Production

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
W. S. Leal ◽  
R. F. Costa ◽  
L. L. Cardoso ◽  
F. S. Mendonça ◽  
F. F. Cardoso ◽  
...  
Keyword(s):  
Economic Model ◽  
Beef Production ◽  
Economic Values

Utilisation of Large White × Mong Cai crossbred sows and Duroc and stress negative Piétrain boars for the production of fattening pigs under household conditions in northern Vietnam

2014 ◽  
Vol 54 (5) ◽  
pp. 574 ◽  
Author(s):  
D. D. Luc ◽  
A. Clinquart ◽  
V. D. Ton ◽  
D. V. Binh ◽  
P. Leroy ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Longissimus Dorsi ◽  
Production Traits ◽  
Large White ◽  
Lean Meat ◽  
Reproduction Traits ◽  
North Vietnam ◽  
Fattening Pigs

The objective of this study was to compare the effects of Duroc (DU) and stress-negative Piétrain (PI) as terminal sires mated to F1(Large White × Mong Cai) sows (F1) on productivity, carcass characteristics, meat quality, and meat chemical composition under household conditions in Hai Duong province, Vietnam. The reproduction performances were based on 74 litters of 42 F1 sows from 12 households and the semen from 11 Duroc and 10 Piétrain boars. Data on production and carcass traits were collected from 76 DU × F1 and 67 PI × F1 crossbred fattening pigs. Longissimus dorsi samples from 55 DU × F1 and 37 PI × F1 were analysed to determine meat quality and meat chemical composition. The results show that household affected production, carcass, and meat quality traits (P < 0.05) as well as reproduction (weights at birth and weaning, P < 0.01). In contrast, boar breed did not influence (P > 0.06) reproduction traits (except individual weight of pigs born alive and weaned pigs, P < 0.01), production traits, meat chemical composition, or meat quality (except pH at 4 days post mortem, P < 0.05). Lean meat percentage of Piétrain-sired pigs was higher than that of Duroc-sired pigs (P < 0.05). The use of Piétrain boars does not affect reproduction performance, growth rate, or meat quality but does improve lean meat percentage compared with Duroc boars. This suggests that the use of stress-negative Piétrain boars as terminal sires would improve lean meat percentage under household conditions in North Vietnam.

Reproductive and productive performances of the stress-negative Piétrain pigs in the tropics: the case of Vietnam

2013 ◽  
Vol 53 (2) ◽  
pp. 173 ◽  
Author(s):  
D. D. Luc ◽  
H. X. Bo ◽  
P. C. Thomson ◽  
D. V. Binh ◽  
P. Leroy ◽  
...  
Keyword(s):  
Sperm Quality ◽  
Sperm Concentration ◽  
Climatic Conditions ◽  
Lean Meat ◽  
Litter Weight ◽  
The North ◽  
Reproduction Traits ◽  
The Tropics ◽  
Duration Of Pregnancy ◽  
Made In

The objective of the present study is to investigate the reproduction, production and semen traits of the stress-negative Piétrain line of pigs in the north of Vietnam, as well as to identify various factors (halothane genotype, generation-origin, parity, sex and month of the year) acting on these traits. The experiment was carried out on a purebred nucleus on Dong Hiep farm, Haiphong province in Vietnam. The reproduction performances and the sperm quality measures were based on 12 sows and 5 boars imported from Belgium as well as on 29 sows and 14 boars born in Vietnam, while the production performances were recorded only from 251 animals born in Vietnam. No significant differences were observed between halothane genotypes of sows for reproduction traits (P > 0.0578). At the age of 7.5 months, bodyweight, backfat thickness and longissimus depth (7.5) of homozygous-dominant pigs were higher (P < 0.05) than in heterozygotes. Homozygous-dominant boars had higher total number of spermatozoa than heterozygote boars (P < 0.05); similarly, Vietnam boars also presented higher total number of spermatozoa values than Belgium boars (P < 0.001). Vietnam sows had longer duration of pregnancy, more piglets born alive and heavier litter weight of weaning than Belgium sows (P < 0.01). Bodyweight at birth, at weaning, at 2, 5.5 and 7.5 months of age increased from the first to third parity (P < 0.05). Gilts had more lean meat than intact boars (P < 0.01). Compared with observations made in temperate countries, the reproduction and production performances, sperm concentration and total number of spermatozoa of stress-negative Piétrain pigs were reduced, whereas lean meat percentage was not affected. This might be due to the different climate, although improving values for animals born in Vietnam might indicate adaptation of the animals and/or of the technicians with that breed. The results support the interest of the use of this new Piétrain line in tropical countries with ecological and climatic conditions similar to Vietnam.

scholarly journals Simultaneous estimation of genetic parameters for production and litter size traits in Czech Large White and Czech Landrace pigs

2013 ◽  
Vol 58 (No. 9) ◽  
pp. 429-436 ◽  
Author(s):  
E. Krupa ◽  
J. Wolf
Keyword(s):  
Litter Size ◽  
Genetic Parameters ◽  
Genetic Evaluation ◽  
Simultaneous Estimation ◽  
Large White ◽  
Lean Meat ◽  
Absolute Value ◽  
Meat Content ◽  
Reproduction Traits ◽  
Daily Gain

Genetic parameters for total number of piglets born per litter, number of piglets weaned per litter, lean meat content, and average daily gain from birth till the end of the field test were estimated for Czech Large White (445 589 records) and Czech Landrace (149 057 records) pigs using a four-trait animal model. The following heritabilities were estimated (first number: Large White, second number: Landrace): 0.10 &plusmn; 0.004 and 0.09 &plusmn; 0.007 for total number born; 0.09 &plusmn; 0.005 and 0.07 &plusmn; 0.008 for number weaned; 0.39 &plusmn; 0.004 and 0.36 &plusmn; 0.009 for lean meat content; 0.21 &plusmn; 0.004 and 0.18 &plusmn; 0.006 for daily gain. The highest genetic correlation (approximately 0.85 in both breeds) was estimated between both litter size traits. In Czech Landrace, all remaining genetic correlations were &lt; 0.20 in their absolute value. Negative correlations of approximately ‑0.25 were estimated in Czech Large White between daily gain and both reproduction traits. All remaining correlations in Czech Large White were also &lt; 0.20 in their absolute value. The estimated non-zero correlations between production and reproduction traits are, besides of other arguments, one reason to recommend a joint genetic evaluation of production and reproduction traits. If more than one litter trait is included in the genetic evaluation, repeatability models should be used instead of separate treating the first and the second and subsequent litters; this is because of the high correlations among litter size traits which are expected to cause numerical problems if multi-parity models are used. &nbsp;

Sign in / Sign up

Export Citation Format

Share Document