scholarly journals The effect of different fixed factors on carcass quality three breed fattening pigs

2012 ◽  
Vol 28 (4) ◽  
pp. 779-786
Author(s):  
C. Radovic ◽  
M. Petrovic ◽  
B. Zivkovic ◽  
D. Radojkovic ◽  
N. Parunovic ◽  
...  
Keyword(s):  
Carcass Quality ◽  
Season Of Birth ◽  
Large White ◽  
New Methods ◽  
Commission Regulation ◽  
Fat Thickness ◽  
Sire Breed ◽  
Fattening Pigs ◽  
Eu Commission

Objective of the paper was to investigate the effect of sire breed and sex of their progeny as well as to study methods for assessment of carcass side quality. Quality of carcass of the progeny was determined according to Rulebook (1985) and share of meat on left carcass sides determined by dissection according to methodology recommended by EU (Commission Regulation EC No 3127/94 and Commission regulation EC No 1197/06) on 84 pigs-progeny of investigated sires. Animals investigated in this study were descendants of dams of F1 genotype Swedish Landrace x Large White (the first one designated is the dam) and two boars Duroc breed (n=36 progeny) and three boars Pietrain breed (n=48 progeny). Of total number of progeny, 42 animals were male castrates and 42 animals were female. It was established that sire breed influences (P<0.01) only the fat thickness on the rump (BFTR), whereas sires of Duroc breed influenced (P<0.05 to P<0.001) pre-slaughter mass (PSM), fat thickness in the middle of the back (BFT), share of meat in carcass sides EC No 3127/94 (EC 94) and share of meat in carcass sides EC No 1197/06 (EC 06). Sires within Pietrain breed exhibited effect on (P<0.05 to P<0.001) BFTR, EC 94 and EC 06. All investigated traits were influenced by sex (gender) (P<0.05 and P<0.001) except PSM, whereas the effect of genotype (P<0.001) was present only on PSM. Season of birth influenced only EC 94 and EC 06 (P<0.001). By implementation of new methods of assessment of meatiness (EC 94 and EC 06) was determined to have a higher proportion of meat (13.33% respectively 16.46%) relation to the Rulebook (1985).

scholarly journals Variation of traits of fatteners under the impact of various factors

2014 ◽  
Vol 30 (4) ◽  
pp. 687-697 ◽  
Author(s):  
M. Gogic ◽  
M. Petrovic ◽  
C. Radovic ◽  
B. Zivkovic ◽  
D. Radojkovic ◽  
...  
Keyword(s):  
Animal Husbandry ◽  
Season Of Birth ◽  
Birth Season ◽  
Large White ◽  
Lower Back ◽  
Fat Thickness ◽  
Offspring Gender ◽  
The Impact ◽  
Sire Breed ◽  
Fattening Pigs

The aim of this study was to determine the effect of the sire breed, sire within sire breed, genotype of fatteners, gender of fatteners, gender within sire breed, season of birth of fatteners and mass of warm carcass side on the following traits: back fat thickness - middle of the back (DSL), back fat thickness - lower back (DSK), meat yield of carcass sides (JUSKG) and percentage/share of meat in carcass sides (JUSPRO). The research was conducted in the experimental slaughterhouse and laboratory of the Institute for Animal Husbandry, Belgrade-Zemun, and included females and castrated male animals. Sires of fatteners were pure breeds: Swedish Landrace (SL, n = 10), Large White (LW, n = 3) and Pietrain (P, n = 3), while the offspring belonged to the following genotypes: pure breed - Swedish Landrace (SL, n=252), and crosses of Large White ? Swedish Landrace (LW ? SL) (n=170), Pietrain ? Swedish Landrace (P ? SL) (n=13), [Pietrain ? (Large White ? Swedish Landrace)] P ? (LW ? SL) (n=35), [Swedish Landrace ? (Large White ? Swedish Landrace)] SL ? (LW ? SL) (n=33) and [Large White ? (Large White ? Swedish Landrace)] LW ? (LW ? SL) (n=33). The study included total 536 offspring of which 276 are male castrated and 260 female animals. In the winter 24 piglets were born, in the spring 95, in the summer 148 and autumn 269 piglets. It was established that the sire within sire breed Pietrain (S:P) does not affect the variation of the studied traits of fattening pigs (P>0.05); sire within sire breed Swedish Landrace (S:SL) does not affect the varying of the trait JUSPRO (P>0.05); season of birth within the Model 1 does not affect the traits yield and share of meat (P>0.05); the offspring gender within genotype (Gender : Genotype) does not affect the variation of fat thickness at the centre of the back (P>0.05). All other factors (sire breed, sire within the sire breed - Large White, gender and genotype of fattening pigs, gender within sire breed, the mass of warm carcass side, and also birth season of fattening pigs in the Model 2) included in the models showed statistically significant impact on the variability of traits of fattening pigs (P<0.05; P<0.01 and P<0.001).

scholarly journals Effect of different fixed factors on pig carcass quality traits

2007 ◽  
Vol 23 (1-2) ◽  
pp. 71-80 ◽  
Author(s):  
Cedomir Radovic ◽  
Milica Petrovic ◽  
B. Zivkovic ◽  
Olga Kosovac ◽  
D. Radojkovic ◽  
...  
Keyword(s):  
Carcass Quality ◽  
Quality Traits ◽  
Season Of Birth ◽  
Large White ◽  
Average Mass ◽  
Large White Breed ◽  
First Rib ◽  
White Breed ◽  
Fat Thickness ◽  
Sire Breed

The effect of sire breed (Swedish landrace and large White), sires within the breed, genotype, sex and season of birth of offspring on age at slaughtering, back fat thickness measured on three points (withers, center of the back and rump), length of carcass side Os pubis-atlas and Os pubis-first rib, yield and share of meat in warm carcass sides of average mass of 81,39 kg, using Yugoslav standards, was investigated. Results obtained show that investigated traits of offspring varied between sire breeds, genotype and sex (P<0,01). Sires within Swedish Landrace influenced (P<0,01) variation of back fat thickness (center of the back, rump, back+rump), age at slaughtering, length of carcass side Os pubis-atlas and Os pubis-first rib, but no effect was established on yield and share of meat (P>0,05). Sires within Large White breed had no effect on age at slaughtering and length of carcass side (P>0,05), whereas on other traits influence was demonstrated (P<0,01 and P<0,05). Season of birth had influence in the second model (P<0,05) on age at slaughtering and in both models on length of carcass side Os pubis-atlas and Os pubis-first rib (P<0,01 and P<0,05), whereas on other investigated traits no effect was established (P>0,05). Age, back fat thickness, length of carcass side and yield of meat were dependent on the mass of warm carcass sides.

scholarly journals The effect of different fixed factors on pig carcass quality and meat traits

2009 ◽  
Vol 25 (3-4) ◽  
pp. 189-196
Author(s):  
Cedomir Radovic ◽  
M. Petrovic ◽  
O. Kosovac ◽  
N. Stanisic ◽  
D. Radojkovic ◽  
...  
Keyword(s):  
Muscle Fibre ◽  
Binding Capacity ◽  
Carcass Quality ◽  
Female Progeny ◽  
Water Binding ◽  
Fat Thickness ◽  
Pig Meat ◽  
Chemical Traits ◽  
Sire Breed

Objective of the paper was to investigate the effect of the sire breed (Swedish landrace and Large Yorkshire) and sex (female animals and male castrates) on quality of carcass and pig meat. Established fat thickenss was the highest at withers (33,21 mm) and the thinnest at rump in the center of m. gluteusa medius (18,48 mm). Sire breed had influence (p<0,01) on back fat thickness in the central part, whereas sex influenced (p<0,05) backfat thickenss at withers. Lean meat of Swedish Landrace progeny established by partial dissection EU was 52,91 % and according to current Regulation 42,89 % and it was higher compared to progeny (SLxLY) whose sires were Large Yorkshire breed. Established difference in share of meat between sire breeds by application of these two methods was 10,02 and 8,83 %. Higher share of meat (EU 53,20 %) was established in female progeny by 2,27 % in comparison to male progeny (p<0,05). Also, sire breed influenced (p<0,05 and p<0,01) pH, water binding capacity, softness and thickenss of muscle fibre, whereas the sex influenced (p<0,01) colour of musculus longissimus. Sire breed and sex had no influence on investigated chemical traits of m. longissimus (p>0,05). .

scholarly journals Microstructure of Longissimus Lumborum Muscle and Meat Quality of Native Polish Pig Breeds: Złotnicka Sp Otted and Puławska

2016 ◽  
Vol 16 (4) ◽  
pp. 1199-1210 ◽  
Author(s):  
Joanna Bogucka ◽  
Wojciech Kapelański
Keyword(s):  
Meat Quality ◽  
The Other ◽  
Type I ◽  
Large White ◽  
Pig Breeds ◽  
Longissimus Lumborum ◽  
Fattening Pigs

Abstract In 50 fattening pigs representing two Polish native breeds: 24 Złotnicka Spotted, 10 Puławska and 16 F1 ♀ (Polish Large White × Polish Landrace) × F1 ♂ (Duroc × Pietrain) crosses microstructure of muscle, carcass and meat quality were studied. Puławska pigs had the thickest backfat, but the loin eye area was smaller only in comparison to crossbreds. Compared to the Puławska breed, the meat of Złotnicka Spotted pigs was darker, which was associated with a greater percentage of type I fibres and a smaller percentage of type IIB fibres. Puławska pigs distinguished themselves from the other groups under study by the greatest density of fibres per mm2. Smaller diameter of type IIA and IIB fibres and higher total number of fibres were found in Puławska breed pigs compared to Złotnicka Spotted, despite the absence of differences in the loin eye area. Smaller thickness of the fibres favourably affects meat quality, and might be considered an indicator of a delicate structure of meat.

Growth and carcass quality of crossbred pigs sired by Duroc, Landrace and Large White boars

1988 ◽  
Vol 18 (3-4) ◽  
pp. 275-288 ◽  
Author(s):  
P. McGloughlin ◽  
P. Allen ◽  
P.V. Tarrant ◽  
R.L. Joseph ◽  
P.B. Lynch ◽  
...  
Keyword(s):  
Carcass Quality ◽  
Large White ◽  
Crossbred Pigs

The value of Australian sorghum for fattening pigs

1950 ◽  
Vol 40 (1-2) ◽  
pp. 84-92 ◽  
Author(s):  
R. Braude ◽  
K. G. Mitchell ◽  
K. L. Robinson
Keyword(s):  
Weight Gain ◽  
Fish Meal ◽  
Live Weight ◽  
First Grade ◽  
Carcass Quality ◽  
Food Utilization ◽  
Live Weight Gain ◽  
Maize Meal ◽  
Fattening Pigs

1. At two centres, Hillsborough and Shinfield, forty-eight pigs in four groups were fattened on rations containing Australian sorghum. The control ration consisted of 30%, wheatfeed, 30% barley meal, 30% maize meal and 10% fish meal. In the three experimental rations either barley meal or maize meal or both were replaced by sorghum.2. The rations containing 30% of sorghum proved to be equal to the control ration as far as live-weight gain of the pigs and the efficiency with which they utilized food was concerned. When 60% of the ration consisted of sorghum there were indications that both rate of gain and food utilization suffered.3. Some aspects of carcass quality suffered when either sorghum alone or sorghum plus maize formed 60% of the ration. The quality of the control carcasses, although quite good by present-day standards, would not qualify for first grade when commercial grading is re-introduced.4. Bacon produced on rations containing up to 60% sorghum had no off-taste or unpleasant flavour.5. In general, the value of sorghum in the ration of fattening pigs was found to be about equal to that of maize.

COMPOSITION AND QUALITY OF BEEF FROM STEERS SIRED BY PIEDMONTESE, GELBVIEH AND RED ANGUS BULLS1

1990 ◽  
Vol 68 (4) ◽  
pp. 1049-1160 ◽  
Author(s):  
J. D. Tatum ◽  
K. W. Gronewald ◽  
S. C. Seideman ◽  
W. D. Lamm
Keyword(s):  
Lipid Content ◽  
Muscle Fibers ◽  
Cross Sectional ◽  
Breed Group ◽  
Intramuscular Lipid ◽  
Fat Thickness ◽  
Red Angus ◽  
Degree Of Maturity ◽  
Sire Breed

Abstract Forty-five steers produced by matings of Piedmontese (P), Gelbvieh (G) and Red Angus (RA) sires to British (B) and Continental crossbred (Cx) dams were started on a finishing diet at an average of 291 d. Five steers from each sire-breed group were slaughtered after 124, 166 or 208 d of finishing. Age-constant values for slaughter weight and estimated degree of maturity did not differ for the three sire breed groups. Carcasses produced by P steers had the least fat thickness, the largest longissimus muscle (LM) areas, the lowest numerical yield grades, the highest yields of separable muscle and the highest muscle-to-bone ratios. Additionally, LM samples from P-sired steers had the highest percentage of white muscle fibers, the lowest percentage of intermediate muscle fibers and the smallest cross-sectional area of red muscle fibers. Marbling scores and intramuscular lipid content were highest for RA steers; P and G steers had similar values for marbling and intramuscular lipid content. Longissimus steaks from G steers received the lowest ratings for tenderness, flavor intensity and amount of connective tissue. Steaks from P and RA steers received similar sensory panel ratings. No differences were observed among the three sire-breed groups for amount and solubility of intramuscular collagen or for partitioning of separable carcass fat.

scholarly journals Carcass quality of feedlot finished steers fed yeast, monensin, and the association of both additives

2009 ◽  
Vol 61 (3) ◽  
pp. 648-654 ◽  
Author(s):  
R.C. Gomes ◽  
P.R. Leme ◽  
S.L. Silva ◽  
M.T. Antunes ◽  
C.F. Guedes
Keyword(s):  
Shear Force ◽  
Subcutaneous Fat ◽  
Feed Additives ◽  
Carcass Quality ◽  
Yeast Culture ◽  
Meat Color ◽  
Muscle Area ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness

To evaluate the effects of the supplementation of feed additives on carcass quality in beef cattle, 72 Nellore steers (339.5kg, 20-month old) were feedlot finished and fed for 91 days one of the following diets: 1) control with no additives; or added of 2) live yeast culture; 3) monensin; or 4) the association of both additives. After slaughter, renal, pelvic, and inguinal fat and hot carcass weights were recorded and carcass was split into muscle, bone, and trimmable fat. Carcass Longissimus muscle area and subcutaneous fat thickness at the 12th rib were measured and steaks of Longisimus muscle were taken to determine meat color, shear force, drip, and cooking losses. Yeast increased carcass dressing percentage but there were no effects on hot carcass weight, Longissimus area, subcutaneous fat thickness, percentage and weight of retail cut yield and trimmings. Feed additives had no effect on carcass pH, meat color, fat content, shear force, and drip losses. Supplementation of yeast, monensin or the association of both additives had no important effects on carcass traits and on meat quality of feedlot finished steers.

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