Vergleichsuntersuchungen zur Verwendbarkeit des PIGLOG-Ultraschall- Gerätes für die Vorausbestimmung des Muskelfleisch-anteiles bei Sauen im Rahmen der Eigenleistungsprüfung

Abstract. Title of the paper: Comparative investigations about the application of ultrasound measurement (PIGLOG) for prediction ofthe lean meat content in gilts Ultrasound based Systems for in vivo estimation of lean meat content were comparatively investigated in 100 gilts (German Landrace, German Large White, Leicoma and F1). Rank correlations increased between ultrasound based estimations of lean meat and carcass Classification with growing age and live weight, respectively. Lean meat content was estimated with the PIGLOG System and the B-mode device with repeatabilites of R2 = 0.40 and R2 = 0.63, respectively. We can not recommend the use of PIGLOG derived estimates of lean meat content in selection of gilts without prior correction of the calculation algorithm in the investigated populations. Our investigations furthermore demonstrated the importance of sufficient training of the persona conducting the measurements.

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The use of performance test parameters for selection of gilts before their placement into breeding

Czech Journal of Animal Science ◽

10.17221/3937-cjas ◽

2011 ◽

Vol 51 (No. 6) ◽

pp. 253-261 ◽

Cited By ~ 2

Author(s):

N. Kernerová ◽

J. Václavovský ◽

V. Matoušek ◽

Z. Hanyková

Keyword(s):

Performance Test ◽

Performance Testing ◽

Live Weight ◽

Regression Function ◽

Backfat Thickness ◽

Daily Weight Gain ◽

Large White ◽

Lean Meat ◽

Meat Content ◽

Richards Function

The objectives of the paper were to evaluate carcass value in reared gilts on the basis of carcass analysis during the station test of purebred progeny of pigs and ultrasonically with Sonomark-100 or Piglog-105 instruments in the framework of valid methodology for performance testing, and to verify a pos-sibility of prediction of backfat thickness and/or average daily weight gain since birth and lean meat content of gilts as the elements of objectification for the evaluation of their body condition. In total 54 gilts of two breeds were evaluated: the dam breed Czech Large White and the sire breed Czech Large White – sire line. Four-parameter Richards function was used for growth evaluation. The regression function y = 63.870 – 0.447 bt1 – 0.510 bt2 + 0.128 MLLT was applied in ultrasonic instruments for the calculation of lean meat content. We calculated linear regression functions for the conversion of performance testing parameters (gain from birth, average backfat thickness and lean meat content) from live weight on the day of measurement per live weight declared during selections in gilts.

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The Indigenous Prestice Black-Pied Pig Breed Differs from a Commercial Hybrid in Growth Intensity, Carcass Value and Meat Quality

Agriculture ◽

10.3390/agriculture11040331 ◽

2021 ◽

Vol 11 (4) ◽

pp. 331

Author(s):

Pavel Nevrkla ◽

Eva Václavková ◽

Miroslav Rozkot

Keyword(s):

Meat Quality ◽

Average Daily Gain ◽

Live Weight ◽

Matter Content ◽

Backfat Thickness ◽

Dry Matter Content ◽

Large White ◽

Lean Meat ◽

Meat Content ◽

Carcass Parameters

The study was designed for the comparison of barrows and gilts of two contrasting genotypes in terms of growth ability, carcass value and meat quality. A total of 76 pigs (from 7 ± 1 kg to 95 ± 6 kg) of the indigenous breed Prestice Black-Pied (PB) and the commercial hybrid of Large White × Landrace × Large Whitesireline (CH) were included in this study. The groups were balanced regarding genotype and sex. Live weight at the age of 79 days (p < 0.001), live weight at slaughter (p < 0.01), average daily gain (p < 0.001), weight of carcass and left carcass side (p < 0.05) and ham proportion (p < 0.001) were higher in the CH group. The values of the given parameters were higher in barrows than in gilts. The effect of genotype and sex interaction was observed in lean meat content (p < 0.05) and backfat thickness (p < 0.01). The CH gilts showed the highest lean meat content and the lowest backfat thickness compared to the lowest values in the PB barrows. The value of pH45 (p < 0.01) and intramuscular fat content were higher in the PB group. The lightness (p < 0.001), yellowness (p < 0.01), drip loss (p < 0.05) and protein content were lower in the PB group. Higher values of lightness (p < 0.05), yellowness (p < 0.05) and cholesterol content (p < 0.05) were observed in the boars. Oxidative stability of the meat (malondialdehyde content) was more favorable in the PB pigs. The effect of genotype and sex interaction was confirmed for the pH24 value (the highest value was found in the PB barrows and the lowest in the CH barrows, p < 0.001) and for the dry matter content (lowest in the PB gilts and highest in the CH barrows, p < 0.05). Overall, the PB pigs were characterized by inferior growth and carcass parameters, however, with more favorable parameters for meat quality.

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The use of premix in feeding of young pigs on fattening

Kormlenie sel'skohozjajstvennyh zhivotnyh i kormoproizvodstvo (Feeding of agricultural animals and feed production) ◽

10.33920/sel-05-2010-06 ◽

2020 ◽

pp. 54-59

Author(s):

A. S. Ivanova ◽

N. V. Dunaeva

Keyword(s):

Positive Impact ◽

Live Weight ◽

Feed Additives ◽

Correct Selection ◽

Control Group ◽

Pork Meat ◽

Large White ◽

Young Pigs ◽

Experimental Group ◽

Selection Of

Increasing the production of pork meat requires careful work not only in terms of breeding, but also in the organization of complete feeding of animals, the correct selection of feed and feed additives containing the necessary nutrients. The purpose of the work was to analyze the use of premix in feeding young pigs on fattening. Two groups of fattening young pigs (Large White×Landrace) have been selected for the researches using the method of analogous groups, taking into account the breed, age, and live weight per 20 heads in each group with a live weight of 35 kg. Pigs of the control group have received the main economic diet, and animals of the experimental group have received an additional premix Khutorok at the rate of 10 g of premix per 1 kg of feed. The results have shown that the best age to reach 100 kg was in the experimental group of pigs – 215,8 days, which received premix with feed that characterizes their higher precocity by 36,3 days (P < 0,001) than in the control group of animals. The use of this premix had a positive impact on the livability of young animals, in the experimental group it was by 9,3 abs.% more than in the control group of animals. Thus, the best fattening traits have been possessed by young pigl of the experimental group have been received the premix Khutorok in their diet at the rate of 10 g of premix per 1 kg of feed. The obtained data indicate the feasibility of using the premix Khutorok in the feeding pigs for fattening.

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Genetic Trend and Relationship of Meatiness Traits of Different Breed Pigs Raised in Lithuania

Proceedings of the Latvian Academy of Sciences Section B Natural Exact and Applied Sciences ◽

10.2478/v10046-009-0022-9 ◽

2009 ◽

Vol 63 (1-2) ◽

pp. 66-69

Author(s):

Ramutis Klimas ◽

Asta Klimienė

Keyword(s):

Correlation Analysis ◽

Live Weight ◽

Backfat Thickness ◽

Genetic Trend ◽

Large White ◽

Lean Meat ◽

Relationship Of ◽

Observation Period

Genetic Trend and Relationship of Meatiness Traits of Different Breed Pigs Raised in Lithuania The purpose of this study was to determine the genetic trend of leanness for purebred pigs, and to determine the relations between meatiness traits, age and live weight of animals. The estimation of meatiness traits (backfat and loin lean thickness, lean meat percentage) of purebred Lithuanian White (LW), Large White (La.W), Yorkshire (Y), Landrace (L), Duroc (D) and Pietrain (P) pigs grown in breeding centres was evaluated by apparatus Piglog 105, during 2000-2006. In 2006, the average lean meat percentage of purebred pigs in the breeding centres of Lithuania ranged from 56.9% (LW) to 59.5% (D). During the observation period (2000-2006), the genetic trend of the leanness of LW was 6.9% (P < 0.001), La.W and L, respectively, was 2.2 and 2.5% (P < 0.01), D was 1.6% (P < 0.05), Y was 0.2% and P was 0.6%. A higher genetic trend of the leanness in the LW pig breed can be explained by import of English La.W boars. Correlation analysis showed that lean meat percentage of pigs is more related to backfat thickness (r = from -0.84 to -0.95, P < 0.001), than to loin lean thickness (r = from 0.11 to 0.30). Live weight of pigs had more influence on mentioned meatiness traits than age.

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The visfatin (NAMPT; PBEF1) gene polymorphisms and associations with meat performance traits in three pig breeds kept in the Czech Republic

Czech Journal of Animal Science ◽

10.17221/1673-cjas ◽

2009 ◽

Vol 54 (No. 10) ◽

pp. 443-447 ◽

Cited By ~ 1

Author(s):

J. Zrůstová ◽

A. Knoll ◽

T. Urban ◽

S. Čepica

Keyword(s):

Average Daily Gain ◽

Backfat Thickness ◽

Large White ◽

Nicotinamide Phosphoribosyltransferase ◽

The Czech Republic ◽

Lean Meat ◽

Meat Content ◽

The Difference ◽

Daily Gain

Visfatin encoded by the NAMPT gene (nicotinamide phosphoribosyltransferase, formerly also known as PBEF – pre-B cell colony-enhancing factor) is suggested to play a role in lipid metabolism and pathophysiology of diabetes mellitus type 2. A new microsatellite SCZ004 was detected within intron 9 of the NAMPT gene. In Czech Large White (n = 95) frequencies of alleles 282, 286, 287, 299, and 304 were 0.02, 0.39, 0.07, 0.04, and 0.48, respectively. Allele 286 was predominant also in Landrace (n = 11) and Black Pied Prestice (n = 11) breeds. Association analysis was carried out between previously reported SNP AM999341:g.669T>C in intron 9 of the NAMPT gene and backfat thickness, average daily gain and lean meat content in Czech Large White (n = 215), Black Pied Prestice (n = 96) and Landrace (n = 105). The CC genotype was associated with higher backfat thickness (CC was associated with lower backfat thickness when compared to TT and CT genotypes (CC genotype was associated with higher lean meat content when compared to CT (not significant) and TT genotype (CC had the lowest lean meat content when compared to CT and TT genotypes but only the difference between CC and CTT was statistically significant (<I ≤ 0.05). In Black Pied Prestice no association with lean meat content was found. Average daily gain was not associated with the SNP in any breed.

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Studies on Belgian Pietrain pigs 2. A comparison of growth and carcass characteristics of Pietrain used in three breed crosses with Landrace, Large White and Hampshire breeds

Animal Science ◽

10.1017/s0003356100011168 ◽

1972 ◽

Vol 15 (1) ◽

pp. 11-19 ◽

Cited By ~ 4

Author(s):

M. K. Curran ◽

I. J. Lean ◽

J. E. Duckworth ◽

W. Holmes

Keyword(s):

Weight Gain ◽

Meat Quality ◽

Carcass Characteristics ◽

Live Weight ◽

Feed Consumption ◽

Unit Weight ◽

Large White ◽

Lean Meat ◽

Live Weight Gain ◽

Breed Crosses

SUMMARY1. The growth, feed consumption per unit weight gain, carcass characteristics and some aspects of meat quality were studied in two trials with crosses derived from Landrace (L), Pietrain (P), Hampshire (H) and Large White (LW) breeds.2. In Trial 1, 96 pigs of both pure Landrace and LW(× (L♀ × P♂)♂ origin were studied up to slaughter weights of 64 and 91 kg live weight. In Trial 2, Landrace, LW♀ × (L♀ × P♂)♂ and LW ♂x (P♀x L♂)♂, (H♀ × P♂ × L♂ and (H♀ × P♂)♀ × LW♂ pigs were compared up to 91 kg live weight using 48 pigs of each type.3. All crossbred types showed better economy of production than Landrace when assessed by live-weight gain and feed consumption per unit weight gain. Their carcasses contained greater quantities of lean meat and similar quantities of rind, bone and fat than Landrace at comparable weights, but they exhibited a variable tendency to poorer meat quality. LW × (L × P) and LW × (P × L) carcasses at 91 kg live weight were shorter than Landrace; 4% and 14% of pigs in trials 1 and 2 respectively were less than the currently acceptable length of bacon pigs (775 mm). (H × P) × LW and (H×P)×L carcasses at this weight were much shorter; 34% and 38% respectively were less than 775 mm.

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Validity of Weight Estimation Models in Pigs Reared under Different Management Conditions

Veterinary Medicine International ◽

10.1155/2014/530469 ◽

2014 ◽

Vol 2014 ◽

pp. 1-5 ◽

Cited By ~ 4

Author(s):

Marvelous Sungirai ◽

Lawrence Masaka ◽

Tonderai Maxwell Benhura

Keyword(s):

Body Length ◽

Live Weight ◽

Linear Regression Method ◽

Linear Measurements ◽

Large White ◽

High Positive Correlation ◽

Positive Correlation ◽

Positive Correlations ◽

The Relationship ◽

Selection Of

A study was carried out to determine the relationship between linear body measurements and live weight in Landrace and Large White pigs reared under different management conditions in Zimbabwe. Data was collected for body length, heart girth, and live weight in 358 pigs reared under intensive commercial conditions. The stepwise multiple linear regression method was done to develop a model using a random selection of 202 records of pigs. The model showed that age, body length, and heart girth were useful predictors of live weight in these pigs with significantly high positive correlations observed. The model was internally validated using records of the remaining 156 pigs and there was a significantly high positive correlation between the actual and predicted weights. The model was then externally validated using 40 market age pigs reared under communal conditions and there was a significantly low positive correlation between the actual and predicted weights. The results of the study show that while linear measurements can be useful in predicting pig weights the appropriateness of the model is also influenced by the management of the pigs. Models can only be applicable to pigs reared under similar conditions of management.

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QUALITY INDICATORS OF WOOL CROSSBREDS BRIGHT AKZHAIK MEAT-WOOL BREED DEPENDING FROM THE SELECTION OF PARENTAL PAIRS

Bulletin Samara State Agricultural Academy ◽

10.12737/19066 ◽

2016 ◽

Vol 1 (2) ◽

pp. 78-82

Author(s):

Селионова ◽

Marina Selionova ◽

Траисов ◽

Baluash Traisov ◽

Баймишев ◽

...

Keyword(s):

Textile Industry ◽

Live Weight ◽

Class I ◽

Wool Production ◽

Local Type ◽

Meat Content ◽

Technical Properties ◽

One Year ◽

Age And Sex ◽

Selection Of

The purpose of the study is improving the wool productivity of sheep of Akzhaik meat-wool breed at the expense of different selections of parents. For research used two variants of selection of parental pairs: Akzhaik meat-wool sheep producing meat-tion type (weight not less than 110 kg, wool production in the original 9.5 kg, wool length of 15.0 cm, fineness of wool 50 quality) were paired with ewes class I and II at the age of 2.5 years is not a local type of herd age and sex depending on the class ewes were divided into two groups of 200 animals each. The same principle was formed the second option of selection of parental pairs. Only were used for mating with avamat-kami class I and II rams-manufacturers of custom herd (live weight 102 kg, wool production in the original 8.24 kg, wool length 15.5 cm, wool fineness 50 quality). The study of wool production and physico-technical properties of the wool yearling bright were carried out using established techniques in research laboratories of wool VNIIOK Stavropol. As a result of the conducted researches it is established that the increase in meat content of Akzhaik meat-wool sheep has no adverse effects on wool productivity bright. So the hair is bright at one year of age was typical for crossbreeding in fineness and the staple well-adjusted. Significant differences in physico-technical properties between the compared groups was not available and the wool meet the requirements of the textile industry for a homogenous semi-fine wool.

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Productive and biological features of breeding Irish pigs of various genotypes in Western Siberia

BIO Web of Conferences ◽

10.1051/bioconf/20213700123 ◽

2021 ◽

Vol 37 ◽

pp. 00123

Author(s):

Svetlana Burtseva ◽

Lyubov Khripunova ◽

Alexander Yashkin ◽

Lyudmila Pautova ◽

Sergey Chebakov

Keyword(s):

Melting Point ◽

Western Siberia ◽

Binding Capacity ◽

Live Weight ◽

Control Group ◽

Fatty Tissue ◽

Large White ◽

White Breed ◽

Breed Selection ◽

Selection Of

The present work studies the productive and biological characteristics of breeding Irish pigs of different genotypes in the conditions of Western Siberia. Pure-bred selection of Large White pigs (WP) was used in the first control group and intra-breed selection of Landrace pigs (LP) was used in the second control group. The following patterns of interbreeding were used in the experimental groups: ♀WP × ♂LP (third group), ♀LP × ♂WP (fourth group). In terms of reproductive qualities, the best combination should be considered the selection of ♀WP × ♂LP, in which 8.1% (p <0.05) more piglets were obtained at 30 days, with a 10.0% (p <0.05) higher weight of the nest at 30 days and 3.6% (p <0.05) greater safety than in the first control group. The combination of breeds according to the ♀LP × ♂WP scheme contributed to an increase in the average daily 13.7% (p <0.05) gain in live weight of the resulting offspring. At the age of 4 months, piglets of the LP × WP genotype had a 10.9% (p <0.05) higher content of total protein in the blood serum than in animals of the Large White breed. The muscle tissue of Large White pigs was characterized by a 5.2% (p <0.05) higher moisture binding capacity in relation to Landrace pigs. The melting point of fatty tissue was lower in Large White pigs by 14.3% (p <0.05). The fatty tissue of LP × WP hybrids has a 10.0% higher melting point (p <0.05) in contrast to Large White pigs.

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Association analysis of seven candidate genes with performance traits in Czech Large White pigs

Czech Journal of Animal Science ◽

10.17221/169/2010-cjas ◽

2011 ◽

Vol 56 (No. 8) ◽

pp. 337-344 ◽

Cited By ~ 2

Author(s):

F. Weisz ◽

T. Urban ◽

P. Chalupová ◽

A. Knoll

Keyword(s):

Average Daily Gain ◽

Large White ◽

Association Analyses ◽

Lean Meat ◽

Meat Content ◽

Pcr Rflp ◽

Performance Traits ◽

Estimated Breeding Values ◽

Study Association ◽

Daily Gain

 In this study association analyses were performed between genes tagged SNP (IGF2, NAMPT, DGAT1, MYF4, MC3R, MC4R and MYOD1), performance traits (backfat thickness, lean meat content, average daily gain from birth to the end of the test, average daily gain in test) and estimated breeding values (EBVs) in a population of Czech Large White sows (n = 101). Genotyping of all SNPs was performed by SNapShot with the exception of SNP within NAMPT gene for which HpaII PCR-RFLP assay was used. The following significant associations between genes tagged SNPs and traits or EBVs were found out: DGAT1 – lean meat content (AG > AA, P ≤ 0.05), MC4R – EBV for lean meat content (GG > AA, P ≤ 0.05; GG > AG, P ≤ 0.05), IGF2 – EBV for reproduction (piglets born alive in the second and subsequent parity) (AG > AA, P ≤ 0.05) and total EBV (AG > AA, P ≤ 0.01) and MC3R – EBV for average daily gain (CT > TT, P ≤ 0.05).

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