Until the introduction of SEUROP system, price negotiation between pig producers and slaughterhouses was based on two subjective criteria: animal weight and visual inspection of the quality of pigs. ...To ensure producers a fair payment, European Union created the possibility of binding the price on two objective factors: carcass weight and carcass composition. This paper describes the pricing mechanism developed by Romania in order to respond to European Union requirements for ensuring a fair payment to pig producers. It raises the attention on the difficulties encountered by the producers in understanding the way the commercial value of a pig carcass is calculated in case the selling price is negotiated on a flat rate basis or on a lean content basis (per kg of carcass weight or per kg of live weight).
Selection in native local breeds needs great carefulness due to the small population size and the risk of inbreeding. Furthermore, most breeds are dual-purpose, and milk and beef attitudes are ...antagonistic. For preservation purposes functional traits need to be considered. Focusing on the small local Rendena cattle, this study aimed to analyse the genetic correlations among milk, beef and udder health traits and the response to selection predicted under different scenarios. The study considered milk, fat and protein yields (MY), factor scores for udder volume (UV), conformation (UC) and muscularity obtained from type traits scored on primiparous cows, and performance test traits (PT) measured on young bulls at test station: average daily gain, in vivo SEUROP fleshiness, in vivo dressing percentage. Somatic cell score (SCS) was considered as a functional trait, with a possibility of restricting its genetic gain to zero. The study considered 281 497 MY test-day data collected on 16 974 cows, and data from linear type evaluation on 11 992 primiparous cows for factor scores. The PT data were recorded on 1428 young bulls, and SCS obtained from cell counts at milk recording. Bi-trait restricted maximum likelihood animal model analyses were performed to assess genetic parameters. Heritability varied from 0.157 (fat) to 0.442 (dressing percentage). Udder volume and MY resulted positively genetically correlated (average correlation 0.427), whereas the low-negative genetic correlation between MY and UC (-0.141) suggested a negative impact of milk gain on udder form. Beef traits of factor muscularity and PT showed medium-high favourable genetic correlations (from 0.357 to 0.984), excluding a null correlation between daily gain and muscularity. The genetic correlation MY v. muscularity was unfavourable (-0.328 on average), whereas null correlations were found in MY v. PT, apart from fat v. dressing percentage (-0.151). Somatic cell score showed low unfavourable correlations with protein (0.111) and UV (0.092), and favourable correlations with UC (-0.193). Response to selection in different scenarios indicated a good balanced gain for milk and beef when standardized economic weights of 0.66 and 0.34 are given to the two attitudes, and SCS genetic gain is restricted. Current genetic trends (MY and PT increasing, but muscularity lessening) reflect a stronger selection for milk, suggesting a slight progressive change towards a milk conformation. Aiming to preserve the dual-purpose characteristics of a breed, proper breeding policies taking into account the genetic relationships among traits and including functional traits should be applied in local dual-purpose populations.
The goal of this study was to analyze the genetic and environmental factors of selected meat yield indicators in Fleckvieh cattle in the Czech Republic, through the application of station (S) and ...field (F) testing methods. Data collected from fattened bulls were analyzed for F (n = 9378) and for S (n = 6346). In the F method and the S method, the values of the main meat yield indicators were as follows: carcass weight 402.91 kg (F), 339.37 kg (S); carcass daily gain 626.05 g/day (F), 609.74 g/day (S); SEUROP carcass classification 2.73 (F), 2.19 (S). Environmental factors were found to have a significant impact on the selected meat yield indicators; their heritability ranged from 0.14 (SEUROP classification) to 0.33 (dressing percentage). The genetic trend was significantly positive only in relation to those meat yield traits, which had a positive link to the size or weight of the animal. The genetic correlation between observations obtained in the S and F methods of testing was very high in relation to the carcass daily gain (0.8351) and carcass weight (0.8244), while slightly lower correlations were calculated for the SEUROP classification. A genetic evaluation of the degree of fatness is not routinely performed in Fleckvieh populations, and the newly established heritability for this trait ranges between 0.17-0.20. The genetic correlation between beef yield indicators and the exterior trait of muscularity was also established, and shows a strong link to the net daily gain, the SEUROP classification and body weight (0.79-0.97). The aim of the study was to evaluate the genetic and environmental effects on meat yield and also estimate genetic parameters for new traits. We can also state, based on the results, that a strong positive genetic trend is confirmed, especially in traits related to the size or weight of animals. This result can be used in breeding programs of dual-purpose cattle, where we can genetically improve the meat and milk yield through the body size.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
The present study was conducted to determine the slaughter and carcass traits of male lambs of the Akkaraman (A), Morkaraman (M), Awassi (IW), Karayaka (KR), Kıvırcık (KV) and Middle Anatolian Merino ...(MAM) sheep breeds. Fattening of all lambs started when they were at 90 days at weaning and finished when they reached bodyweight of 40 kg. The cold dressing percentage of lambs of A, M, and IW breeds were significantly lower than those of KV, KR and MAM. Fat depth and muscle area were significantly greater in KV and MAM lambs than those of the other breeds. There were significant differences among breeds in shoulder, leg and lean weights. Weights of back loin in KV and MAM lambs were significantly greater than those of the other breeds. The highest values for carcass fleshiness were obtained in MAM and IW lambs, but they had a significantly lower carcass fatness score. There were significant differences among the breeds in carcass compactness and leg conformation. The results of the present study indicated that A and MAM breeds could be recommended for desirable carcass characteristics.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
In Greece, all cattle carcasses produced from a variety of breed types are classified according to the SEUROP system. The objective of this study was to evaluate Greek carcass characteristics such as ...carcass weight and age of slaughter based on SEUROP classification system (muscle conformation and fat deposit classes) and to describe the effect of main factors such as breed, gender, year of slaughter, farm's geographical region and month of slaughter on these carcass parameters. It is the first study that evaluates local breeds, revealing the wide diversity of the Greek cattle breeding conditions. The analyzed records consisted of 323,046 carcasses from 2011 to 2017. All the examined factors significantly affected the mean carcass weight (298.9 ± 0.2 kg) and the mean slaughter age (559.1 ± 0.3 days). Carcasses from beef meat breeds had on average higher mean carcass weight while the local breeds had lower. The mean slaughter age and carcass weight were higher in winter than in summer. The local and the dairy breeds were classified in similar muscle conformation classes. Finally, Greek cattle carcasses from almost all regions were satisfactory for their quality carcass traits with good muscle conformation (R, O and U class) and low-fat deposit (class 1 to 3).
In 29 October 1975 Council Regulation of European Economic Community (EEC) provided the common organization of the pig meat market. In 1984, EEC considered it necessary to lay down general rules ...ensuring uniform grading of pig carcasses. The main objective of this paper is to describe how pig carcass classification implemented by EU legislation has become a core strategic competition between manufacturers. In the European Commission the carcass classification system is assimilated as an instrument of intervention. This guarantees the agricultural community a decent life. The classification and payment system promoted by EU producers ensure greater transparency of the market, providing to the economic agents involved in the sector quick access to information on evolution of prices in different markets.
The objective of this study was to determine lean meat content in pigs from
different farms and smallholdings, which were slaughtered in one abbatoir in
Serbia. In Serbia one third of the total ...number of pigs is slaughtered in
slaughterhouses and two thirds in rural households. Results of this
examination carried out on 12 523 slaughtered pigs from 9 farms and
smallholdings showed that lean meat content in farm pigs ranged from 51.16?
4.31% to 53.27?2.94%. The average quantity of meat in farm pig carcasses was
52.29? 2.04%. The average lean meat percentage of pig carcasses from
smallholdings was 48.99?4.85 %. All farm pig carcasses were classified on the
basis of meatiness into class U (50.0-54.9% of lean meat content) while pig
carcasses from smallholdings were graded as class R (the percentage of meat
ranging from 45.0-49.9). Data about lean meat content of pig carcasses in
Serbia have not been published during the past twenty years, because lean
meat percentage has not been determined. Today, only three abattoirs in
Serbia determine lean meat percentage and pay pig producers according to
meatiness.
The paper deals with the institutional problems faced by animal carcass classifying operators while implementing the SEUROP classification system in Romania. The research was performed in March 2015 ...by means of in-depth interviews with different economical operators in the pig-carcass classification sector. The main findings that need solutions in the next future are the following: still poor understanding of the benefits of the carcass classification activity by some direct beneficiaries, the need for a consolidation in current regulation, the need for a methodological framework for the uniform application of the law and a few external factors that can not be controlled by carcasses classification agencies and independent carcass classifiers but create difficulties in managing the daily activity.
The purpose of the paper is to illustrate an econometric model used to predict the lean meat content in pig carcasses, based on the muscle thickness and back fat thickness measured by the means of an ...optical probe (OptiGrade PRO).The analysis goes through all steps involved in the development of the model: statement of theory, specification of the mathematical model, sampling and collection of data, estimation of the parameters of the chosen econometric model, tests of the hypothesis derived from the model and prediction equations. The data have been in a controlled experiment conducted by the Romanian Carcass Classification Commission in 2007. The purpose of the experiment was to develop the prediction formulae to be used in the implementation of SEUROP classification system, imposed by European Union legislation. The research methodology used by the author in this study consisted in reviewing the existing literature and normative acts, analyzing the primary data provided by and organization conducting the experiment and interviewing the representatives of the working team that participated in the trial.
Biological characteristics that influence the SEUROP system classification for Czech Fleckvieh and Holstein bull carcasses Filipcik, R.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Chovu a Slechteni Zvirat) E-mail:filipcikr@seznam.cz; Subrt, J.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Chovu a Slechteni Zvirat); Vyroubal, M.(Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Ustav Chovu a Slechteni Zvirat)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis,
12/2014, Letnik:
54, Številka:
2
Journal Article
Recenzirano
Odprti dostop
The effect of breed type (combined and dairy breed), age, carcass weight, weight gains and feeding/rearing conditions (different farms) on the final carcass classification in the SEUROP system was ...evaluated in 703 Czech Fleckvieh and 642 Holstein bulls. Breed and rearing conditions (feeding) had the highest influence on bulls' classification. There were significant differences between the farms as well as between the two breeds concerning netto weight gain. Significant differences in netto weight gains between the different groups of Holstein bulls (less than 500 g/day, 551-600 g/day, 601-650 g/day and more than 651 g/day) were also observed.
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