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Estimation by vision of pork cuts composition for sex and halothane genotype subpopulations

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Gérard Daumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, p. 52-53

This work aims to quantify the systematic deviations for sex and halothane genotype subpopulations in the estimation by automatic vision of pork cuts composition. A sample of 208 carcasses, startified according to sex (50% castrated males and 50% females), was measured on line by the classification method CSB Image-Meater® (IM). An ear sample was analysed for halothane gene (Hal). The left sides were cut according to the EU procedure and the four main cuts were CT scanned  in order to determine the lean meat percentage (LMP) in each cut. These LMPs were regressed on six IM potential predictors and the carcass weight. For each equation were calculated the systematic deviations per level of the sex and Hal factors by mean difference between predicted and observed values. The absolute deviation per sexual types was the lowest (0.5%) in ham and the highest (1.4%) in belly. The deviations per Hal genotype ranged from 0.3% in shoulder to 0.8% in belly. In all models females and Hal heterozygotes were underestimated and vice-versa. The deviations per Hal genotype were about the half than per sex. The deviations per sex could be removed by at least a different intercept in the prediction equations.

PDF icon Gérard Daumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, p.
2017

Nutritional evaluation of dehulling and thermal treatments for production of expeller soybean meal

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Carré et al., 68th Annual Meeting of the European Federation of animal Science, 28 août- 1er septembre 2017, Tallinn, Estonie, p. 318, session 33 : Feed-a-Gene, abstract

The objective of this study was to determine the influence of different processes on the nutritional quality of expeller soybean meal (SBM). Extrusion or cooking processes in combination with dehulling and pressing were used to produce 4 partly defatted SBM with low residual trypsin inhibitor (TI) activity. European soybeans were ground using a roller mill, then dehulled or not with a cleaner separator. The 2 products were either extruded using single-screw extrusion at 140°C at around 100 kg/h (EP), or cooked at 150°C during 60 minutes (FCP) after flaking. All beans were then pressed to extract the oil. Extrusion allowed a higher oil extraction than cooking (residual oil: 4.9 vs 8.6 g/100 g DM in whole EP and FCP meals, and 5.2 vs 6.4 g/100 g DM in dehulled EP and FCP meals, respectively). The dehulling step resulted in an increase of almost 3 g/100 g protein (58.8 and 58.4 g/100 g for dehulled EP and FCP meals, respectively, and 56.0 and 55.8 g/100 g for whole EP and FCP meals, respectively, on a fat free DM basis). The KOH protein solubility was increased by dehulling for EP (70 vs 76%) and FCP processes (82 vs 89%, for whole and dehulled meals, respectively). The TI values were 2.6, 3.5, 3.6, and 7.6 TIU/mg for whole and dehulled EP and FCP meals, respectively. The lower dryer outlet temperature measured for the dehulled beans compared to whole beans (90 vs. 97°C) may explain the lower TI inactivation for the dehulled FCP meal. The amino acid and reactive lysine content and the in vitro rate of degradation based on hydrolysis of protein bonds (pH-stat) are determined and related to the chemical composition to evaluate the nutritional value of the meals. All 4 processes may produce good quality SBM with 46-52 g/100 g crude protein, 4-8 g/100 g residual oil, and a TI content below 8 TIU/mg. Extruded-expelled SBM produced in medium-sized crushing plants from local and GMO-free crops have a nutritional and economic potential in Europe. This study is part of the Feed-a-Gene project and received funding from the European Union's H2020 program under grant agreement n° 633531.

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2017

Inlfuence of a dynamic meal feeding approach on weaning performance and health of piglets

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Eric Royer et al., 68th Annual Meeting of the European Federation of animal Science, 28 août- 1er septembre 2017, Tallinn, Estonie, p. 318, session 29, p. 292, abstract

A total of 936 weaned piglets were used in three experiments to study the effects of a dynamic meal feeding at weaning piglets were affected by post-weaning colibacillosis and edema disease (ED) of Escherichia coli O141:K85 in Exp. 1 and 2, whereas this infection was controlled in Exp 3. In Exp. 1 and Exp. 2, a phase 1 diet was offered ad libitum with free access to hoppers (control), or given in long trouhgs seven times daily from 08:00 am to 7:30 pm in quantities adjusted each day to appetite (7M), or restricted (R-7M). In Exp.3, the treatments were (1) control, (2) eleven meals in troughs from 07:00 am to 10:30 pm with quantities adjusted after each meal to appetite (11M), and (3) 11M with a mixing strategy at weaning limiting the number of litters per pen (1M-FAM). The dynamic phase duration was 13, 9 and 10 d in Exp. 1, 2 and 3, respectively, after which, using only hoppers, all piglets received ad libitum the phase 1 diet to d 14. In Exp.1. a too restrictive adjustment of feed supply from d0 to 14 rsulted in lower ADFI for 7M or R-7M pigs than for control pigs (305, 294 and 349 g/d, respectively; P<0.001). However, ED outbreaks did not differ between treatments (mean=3% of piglets). In Exp 2, ADFI was reduced for 7M pigs (-4%; P>0.05) and for R-73 pigs (-8%; P=0.02) compared to  control poigs (279, 257 and 291 g/d, respectively), but was unaffected from 9 to 14. ED outbreaks from 12 to 15, resulted in an equal number of dead or sick pigs for 7M and R-7M treatments (7%), which was higher than for control (3%). In Exp.3, ADFI from d0 to 10 was similar for piglets offered 11M, 11M-FAM and control treatments (289, 270 and 283 g/d, respectively). Video monitoring showed that the number of animals with feeding intake by meal period was increased at d 1 for 11 M and 11M-FAM piglets compared to control piglets (75, 81 and 67%, respectively; P<0.01). By reproducing the behavior of suckling piglets, the distribution of meals in long troughs may biefty enhance the feed intake during the first two days after weaning. The study did not confirm that decreasing or distributing the feed intake may control the edema disease.

PDF icon Eric Royer et al., 68th Annual Meeting of the EAAP, 28 août- 1er septembre 2017, Tallinn, Estonie, session 29, p. 292, abstract
2017

Influence of feeding level and dietary energy content on performance and behaviour of entire male pig

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Nathalie Quiniou et al. 68th Annual Meeting of the European Federation of Animal Science, Tallin, Estonie, 28–31 août 2017, session 20, p. 217, abstract

 

 

PDF icon Nathalie Quiniou et al., 68th Annual Meeting of the EAAP, Tallin, Estonie, 28–31 août 2017, session 20, p. 217, abstract
2017

Reduction of the amino acids supplied in excess to the growing pig using a precision feeding device

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Nathalie Quiniou et al. 68th Annual Meeting of the European Federation of Animal Science, Tallin, Estonie, 28–31 août 2017, session 43, p. 389, abstract

PDF icon Nathalie Quiniou et al. 68th Annual Meeting of the EAAP, Tallin, Estonie, 28–31 août 2017, session 43, abstract
2017

Development of a precision support system for precision feeding application in pigs and poultry

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Ludovic Brossard et al. 68th Annual Meeting of the European Federation of Animal Science, Tallin, Estonie, 28–31 août 2017, session 33, p. 319, abstract

Precision feeding is a promising way to improve feed efficiency and thus economic and environmental sustainability of livestock production. A decision support system (DSS) was built to determine in real-time the nutritional requirements of animals and feed characteristics (composition, amount). This tool will be associated with a controlling module to be part of an automatic feeding system and exchange data with different devices for an application of precision feeding in pig and poultry commercial farms (Figure 1). This DSS tool, dedicated to animals managed individually or in group, is designed with a modular structure for adaptation to different feeder devices, species and production stage (growing pigs, gestating and lactating sows, broilers, laying hens) (Figure 2). The modules are built to perform specialized tasks in a cooperative way. It includes a data management module with a proper characterization of data by meta-data definition for precision feeding. It ensures standard encoding to allow data interoperability from any platform. Other modules are dedicated to data checking and correction for database filling, prediction of most probable body weight (BW) gain and feed intake (ad libitum or restricted feeding) and calculation of nutritional requirements. The BW and feed intake prediction is based on dynamic data analyses. For that, specific methods have been studied and selected depending on the number of available data, their type (BW or feed intake) and recording frequency. The calculation of nutritional requirements is performed using nutritional models specific to a species or a production stage. These two last modules are currently designed for healthy animals and will be refined to extent prediction to a larger range of field situations (e.g. health problems, climatic conditions) with nutritional models in development/refinement in other workpackages of the project. The general specifications of this DSS and dynamic data analyses will be illustrated for growing pigs.

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2017

Evaluation of steroid concentrations in the saliva of pre-pubertal gilts for the identification of biomarkers of the pubertal stage of maturity

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Ghylène Goudet et al., ESDAR, 24-26 août 2017, Bern, Suisse, abstract

Estrus synchronization is important for optimal management of gilt reproduction in farms. Synthetic progestagens are used for this purpose, but there is growing demand for non-hormonal alternatives. Before puberty, gilts exhibit a “waiting period”, related to ovarian development and gonadotrophin secretions, during which external stimulations, such as boar exposure, could induce and synchronize first ovulation. Practical non-invasive tools for identification of this period in farms are lacking. During this period, urinary estrone levels are high, but urine sampling is difficult in group-housed females. Our aim was to search for steroidal biomarkers of this “waiting period” from immature to pubertal gilts through saliva monitoring.
Six 140-day-old Large White gilts were subjected to ultrasound puberty diagnosis 3 times a week for 5 weeks until first ovulation. Urine and saliva samples were collected at the same frequency for estrone assay and steroidome analysis respectively. Urinary estrone concentration significantly increased 2 weeks before puberty (detected at 182-192 days). Steroidome analysis quantified 28 steroids in saliva. Significant variations were detected within 2 weeks before puberty for dehydroepiandrosterone (decrease) and estradiol-17&a538; (increase). These steroids could be biomarkers of the “waiting period”.
These results confirm that non-invasive salivary sampling could allow the identification of the physiological status of the gilts and presumably the optimal time for application of the boar effect.

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2017

Conséquences de l’automatisation du classement des carcasses sur les écarts entre types sexuels et génotypes halothane

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Gérard Daumas et  al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, poster

L’automatisation du classement des carcasses à la mi-2013 s’est accompagnée d’un changement de localisation des épaisseurs mesurées.
Les épaisseurs mesurées sur le dos, latéralement à la fente, ont laissé place à des épaisseurs mesurées à la jonction jambon-longe, sur la fente.
Les écarts entre sous-populations, dont la connaissance est d’un grand intérêt dans la fi lière, ont donc été modifi és. L’objectif de ce travail était de quantifier, pour les méthodes de classement CGM et CSB Image-Meater® (I-M), ces écarts entre types sexuels et génotypes halothane, facteurs connus pour leur importance sur la composition corporelle.

PDF icon Gérard Daumas et al., 49es JRP, Paris, 31 janvier et 1er février 2017, poster
2017

Performances des porcs femelles et mâles castrés selon le plafond de rationnement en fi n d’engraissement

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Nathalie Quiniou et al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1 février 2017, poster

Le taux de muscle des pièces à l’abattage dépend de la composition du gain de poids pendant la croissance. Le dépôt de gras s’accentue en fi n d’engraissement notamment chez les mâles castrés (MC).
Ces derniers sont donc généralement alimentés de façon rationnée. Dès lors que les femelles (F) ne sont pas élevées en loges séparées c’est également le cas pour elles. Différents plafonds de rationnement peuvent cependant être mis en oeuvre qui sont évalués dans cette étude.

PDF icon Nathalie Quiniou et al., 49es JRP, Paris, 31 janvier et 1 février 2017, poster
2017

Monitoring du niveau d’activité des truies par un accéléromètre communiquant placé à l’oreille

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Michel Marcon et  al., 49es Journées de la Recherche Porcine, Paris, 31 janvier et 1er février 2017, poster

Le niveau d’activité des truies a une incidence sur leur état corporel, leur besoin alimentaire et peut être un indicateur de santé.
La bibliographie montre que la dépense énergétique d’une truie en position « debout » représente le double de celle mesurée en position couchée. Ainsi, en disposant du niveau d’activité en routine, il devient envisageable d’ajuster la ration alimentaire pour mieux homogénéiser l’état d’engraissement du troupeau de truies.

PDF icon Michel Marcon et al., 49es JRP, Paris, 31 janvier et 1er février 2017, poster
2017

Vision versus reflectance technology for deviations for sex and halothane genotypes in pig carcass classification

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Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Automation of pig carcass classification entailed a change in the location of the measured variables. Since mid-2013 in France the thicknesses measured on the back, laterally to the splitline, were replaced by thicknesses measured at the ham-loin junction on the splitline. Systematic deviations by sub-population, whose knowledge is of great interest in the chain, have thus been modified. The objective of this work was to quantify the systematic deviations related to sex and halothane genotype factors for CGM and CSB Image-Meater® classification methods, well known for their effects on carcass composition.

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Irlande, 13-18 août 2017, pos
2017

Vision versus reflectance technology to estimate pork cuts composition

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Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Sorting meat cuts is an ongoing challenge. Many pork plants use weighing and carcass grading information for pre-sorting. Automation of pig carcass classification entailed a change in the location of the measured variables. Since mid-2013 in France the thicknesses measured by reflectance (CGM) on the back, laterally to the splitline, were replaced by thicknesses measured by vision (CSB Image-Meater®) at the ham-loin junction on the splitline. The objective of this work was to compare the precision of these two classification methods to predict the proportion of muscle in the main cuts.

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

NIR and Vis-NIR spectroscopy to predict PSE-like zones of ham

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

PSE-like zones are still a major concern for the meat processing industry. This structure defect of the ham is known to increase slicing losses of the phosphate-free “Jambon Cuit Supérieur” processing. PSE-like zones are difficult to detect before deboning due to their localization on the inside surface of the ham. Near Infra-Red Spectroscopy (NIRS) devices such as Labspec4® can be considered as alternative techniques to human subjective grading, but measurements must be conducted on deboned hams. The NitFom™ (Frontmatec) is a NIR based measuring device dedicated to on-line measurements at high speed on hot or cold carcasses by invasive probing. The objective of the study was to evaluate the accuracy of PSE-like zone classification using NitFom™ on bone-in hams and to compare its prediction quality with the previously tested Labspec4® on deboned hams.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

Prediction of drip loss and ultimate pH in pork Semimembranosus by the NitFom™

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Antoine Vautier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

A majority of studies dealing with Near InfraRed Spectroscopy (NIRS) prediction of meat quality are focusing on its chemical composition, but the ability of NIRS to predict technological quality of meat has been the subject of many recent publications. This technology gives a quick access to spectral pattern that can also be linked to the water holding capacity of meat. However, very few NIRS devices are suitable for industrial implementation. In this study, a feasibility test was carried out to evaluate the possibility of predicting drip loss and ultimate pH in pork Semimembranosus using the NitFom™, a NIRS-based handheld invasive probe suitable for rapid on line measurements in pork carcasses immediately after slaughter.

PDF icon Antoine Vautier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

Nutritional values of 11 pork secondary meat-cuts and liver

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Martine Carlier et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Nutritional analysis for nutritional labelling has been carried out on 11 meat-cuts and liver from pigs commonly produced in France. Meat-cuts have been prepared in slaughterhouses for their use in processed meat preparations or products.

PDF icon Martine Carlier et al., 63e ICOMST, Cork, Irlande, 13-18 août 2017, poster
2017

In vitro characterization of the ability of Yersinia enterocolitica BT4 to colonize pigs and stainless steel surfaces

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Pierre Raymond et al., 12th SAFEPORK, 21-24 août 2017, Foz do Iguassu, Brésil, poster

Y. enterocolitica is the third bacterial cause of human enteritis in Europe (1). The biotype 4 (BT4) is the biotype the most frequently isolated from both pigs and clinical yersiniosis (2, 3). The ability of BT4 strains to infect humans may depend on their capability to colonize pigs and to develop biofilm on conventional materials used in food industries.
This study investigated the use of two in vitro tests to assess the ability of BT4 strains, to adhere and invade intestinal pig cells (IPEC-J2) and to adhere to stainless steel surfaces.

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2017

Consequences of the future EU regulation on pig carcass classification

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Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

A new EU regulation on classification of beef, pig and sheep carcasses was published in July 2017 and shall apply from 11 July 2018.

For pig carcasses the reference of lean meat percentage, based on partial dissection (LMPPD) since 2006, will be replaced by a lean meat percentage based on total dissection (LMPTD). Manual total dissection can be replaced by CT virtual dissection of half carcasses if adjusted.

Sample should be stratified, but the minimal size would be 10 carcasses. The aim of this paper is to assess the main consequences of this future EU regulation on pig carcass classification.

PDF icon Gérard Daumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017
2017

Pork cuts composition measured by scanner as infl uenced by sex and halothane genotype

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Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

Knowledge of the main factors infl uencing the cuts composition can help both sorting cuts and designing composition experiments. Sex and
halothane gene, well known for their effects on carcass composition, also deserve to be studied on cuts. The aim of this work is to study the sex
and halothane gene effects on the proportions of tissues in the four main pork cuts: ham, shoulder, loin and belly. Composition was determined by
scanner, a modern technique, which has recently been intensively studied in the COST action FAIM (Farm Animal Imaging).

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, pos
2017

Estimation by vision of pork cuts composition for sex and halothane genotype subpopulations

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Gérard Dumas et Mathieu Monziols, 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

The meat industry is interested in the prediction of the cut yields in order to drive the cutting as effi ciently as possible. These yields can be predicted
with the variables used in the compulsory task of carcass weighing and grading. Nevertheless, the factors having an effect on carcass grading could
have a different effect on the cut grading, specifi c to each cut. This work aims to quantify the systematic deviations for sex and halothane genotype
subpopulations in the estimation of pork cuts composition by the automatic vision system called CSB Image-Meater® .

PDF icon Gérard Dumas et Mathieu Monziols, 63e ICOMST, Cork, Irlande, 13-18 août 2017, pos
2017

Sponge vs excision technique for carcass sampling of beef, lamb and pig - Influence on process hygiene criteria and monitoring

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Brice Minvielle et al., 63e International Congress of Meat Science and Technology, Cork, Irlande, 13-18 août 2017, poster

According to EU regulations meat operators must comply with process hygiene criteria, specifi ed for carcasses in terms of daily mean log cfu/cm²
of Aerobic colony count (ACC) and Enterobacteriaceae (ENT). These limits shall apply only to carcass sampled by excision, but other sampling
methods may be used if it can be demonstrated to the satisfaction of the competent authority that it provides at least equivalent guarantees.
The present study was undertaken to evaluate for beef, sheep and pig carcasses (i) the effectiveness of two types of sponge swabbing for the
enumeration of ACC and ENT in comparison to excision sampling, (ii) the consequences on the evaluation of process hygiene counts and the
determination of alternative microbial limits, and (iii) the impact of the change of method on the hygiene monitoring of the slaughtering process.

PDF icon Brice Minvielle, 63e ICOMST, Cork, Irlande, 13-18 août, poster
2017

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