scholarly journals Effects of pork differentiation strategies in Canada on pig performance and carcass characteristics

2016 ◽  
Vol 96 (4) ◽  
pp. 512-523 ◽  
Author(s):  
H. Zhang ◽  
J.L. Aalhus ◽  
C. Gariépy ◽  
B. Uttaro ◽  
O. López-Campos ◽  
...  
Keyword(s):  
Control Diet ◽  
Carcass Characteristics ◽  
Quality Traits ◽  
Animal Performance ◽  
Live Animal ◽  
Slaughter Weight ◽  
Diet Supplement ◽  
Meat Colour ◽  
Pig Performance ◽  
Hardness Values

Performance and quality traits were measured in carcasses from combinations of genotype, diet supplement, slaughter weight, and carcass chilling regime. Iberian-crossed pigs had lower live animal performance than Duroc and Lacombe. From 70 to 115 kg, Lacombe pigs grew slightly faster than Duroc. Duroc carcasses had a higher lean percentage, heavier ham and picnic primals, and lighter loins and bellies, compared with Lacombe and Iberian. Heavier carcasses had lower lean yield, except those from Iberian-crossed pigs, and bigger bellies. Meat from Duroc-crossed pigs was lighter in colour and higher in marbling, with intermediate values for fat hardness. Iberian carcasses displayed dark meat with intermediate marbling and the hardest fat. Meat from Lacombe pigs was the leanest although, like in all three breeds, marbling scores were higher in heavier carcasses. Generally, supplementing with canola and flax decreased and blast chilling increased fat hardness values. Dietary canola also seemed to affect meat colour traits, but these effects were not consistent among breeds and slaughter weights. The commercial combination of Duroc breed, control diet, and 115-kg slaughter weight showed a balance in terms of performance, carcass, and quality traits. Other combinations evaluated in this study showed potential to efficiently produce differentiated pork.

Live Animal Performance and Carcass Characteristics of Beef Bullocks and Steers

1978 ◽  
Vol 47 (1) ◽  
pp. 151-155 ◽  
Author(s):  
Mark E. Landon ◽  
H. B. Hedrick ◽  
G. B. Thompson
Keyword(s):  
Carcass Characteristics ◽  
Animal Performance ◽  
Live Animal

Preliminary estimates of genetic parameters for carcass and meat quality traits in Australian sheep

2010 ◽  
Vol 50 (12) ◽  
pp. 1135 ◽  
Author(s):  
S. I. Mortimer ◽  
J. H. J. van der Werf ◽  
R. H. Jacob ◽  
D. W. Pethick ◽  
K. L. Pearce ◽  
...  
Keyword(s):  
Meat Quality ◽  
Nutritional Value ◽  
Genetic Correlations ◽  
Research Centre ◽  
Quality Traits ◽  
Live Animal ◽  
Sheep Industry ◽  
Meat Quality Traits ◽  
Australian Sheep ◽  
Meat Colour

Using performance from progeny born in 2007 and 2008 generated by the Information Nucleus program of the Cooperative Research Centre for Sheep Industry Innovation, preliminary estimates of heritability were obtained for a range of novel carcass and meat attributes of lamb relevant to consumers, including carcass characteristics, meat quality and nutritional value of lamb. Phenotypic and genetic correlations of live animal traits with carcass composition and meat quality traits were also estimated. The data were from progeny located at eight sites, sired by 183 rams from Merino, maternal and terminal meat breeds and were representative of the Merino, Border Leicester × Merino, Terminal × Merino and Terminal × Border Leicester-Merino production types of the Australian sheep industry. Data were available from 7176 lambs for weaning weight, 6771 lambs for ultrasound scanning and 4110 lambs for slaughter traits. For the novel meat quality traits, generally moderate to high heritability estimates were obtained for meat quality measures of shear force (0.27 aged 1 day, 0.38 aged 5 days), intramuscular fat (0.39), retail meat colour (range of 0.09 to 0.44) and myoglobin content (0.22). The nutritional value traits of omega-3 fatty acids and iron and zinc contents tended to have low to moderate heritabilities (0.11–0.37), although these were based on fewer records. Fresh meat colour traits were of low to moderate heritability (0.06–0.21) whereas measures of meat pH were of low heritability (~0.10). For the carcass traits, estimates of heritability were moderate to high for the various measures of carcass fat (0.18–0.50), muscle weight (0.22–0.35), meat yield (0.24–0.35), carcass muscle dimensions (0.25–0.34) and bone weight (0.27). Results indicate that for most lamb carcass and meat quality traits there is sufficient genetic variation for selection to alter successfully these characteristics. Additionally, most genetic correlations of live animal assessments of bodyweight, muscle and subcutaneous fat with the carcass and meat quality traits were favourable. Appropriate definition of breeding objectives and design of selection indexes should be able to account for the small unfavourable relationships that exist and achieve the desired outcomes from breeding programs.

Effect of ractopamine hydrochloride (Optaflexx) dose on live animal performance, carcass characteristics and tenderness in early weaned beef steers

Meat Science ◽  
2012 ◽  
Vol 92 (4) ◽  
pp. 458-463 ◽  
Author(s):  
D.D. Boler ◽  
A.L. Shreck ◽  
D.B. Faulkner ◽  
J. Killefer ◽  
F.K. McKeith ◽  
...  
Keyword(s):  
Carcass Characteristics ◽  
Beef Steers ◽  
Animal Performance ◽  
Live Animal ◽  
Ractopamine Hydrochloride

PSIII-10 The effect of a direct-fed microbial (10-G) on live animal performance and carcass characteristics of fed beef heifers

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 286-286
Author(s):  
Lauren M Mayer ◽  
Kevin Martens ◽  
Loni W Lucherk ◽  
Ty E Lawrence ◽  
Travis C Tennant
Keyword(s):  
Block Design ◽  
Average Daily Gain ◽  
Random Effect ◽  
Carcass Characteristics ◽  
Animal Performance ◽  
Beef Heifers ◽  
Severe Liver ◽  
Live Animal ◽  
Final Body Weight ◽  
Liver Abscesses

Abstract Heifers (n = 1,394; 291 ± 9.9 kg) were used to test the effects of a direct-fed microbial (10-G) on live growth performance and carcass characteristics. Heifers were blocked by arrival day and randomly allocated to treatment (0 or 2g/animal/d; CON and 10-G, respectively) in a randomized complete block design with ten pens per treatment. Heifers were fed for an average of 192 days. Growth and carcass outcomes were analyzed using mixed models with pen as experimental unit and block as random effect. Dry matter intake (P = 0.63), average daily gain (P = 0.69), gain:feed (P = 0.95) and final body weight (P = 0.79) did not differ between treatments. Neither deads and removals (P = 0.52) nor first or second treatment morbidity rates (P ≥ 0.84) were different between treatments. Hot carcass weight (P = 0.19), dressed carcass yield (P = 0.33), 12th rib fat depth (P = 0.73), ribeye area (P = 0.13), calculated empty body fat (P = 0.71) or marbling score (P = 0.20) were not different between treatments. Yield grade distributions did not differ between treatments (P ≥ 0.44), however cattle fed 10-G tended (P = 0.09; 15.78 vs 20.34%) to be represented by fewer USDA Select carcasses. Livers from cattle fed 10-G tended (P = 0.10; 1.02 vs 2.19%) to have a lower frequency of abscesses when compared to CON. Heifers fed 10-G also had fewer (P < 0.05; 5.27 vs 8.51%) severe liver abscesses. These results suggest that supplementing fed beef heifers with 10-G decreased rates of severe liver abscesses without altering live animal performance or carcass characteristics.

RADIOGRAPHY OF THE LIVE ANIMAL AS A TECHNIQUE FOR PREDICTING CARCASS CHARACTERISTICS IN SWINE

1966 ◽  
Vol 46 (2) ◽  
pp. 83-89 ◽  
Author(s):  
A. H. Martin ◽  
H. T. Fredeen
Keyword(s):  
Birth Weight ◽  
Carcass Characteristics ◽  
Linear Measurements ◽  
Live Animal ◽  
Vertebral Number ◽  
Slaughter Weight ◽  
X Ray ◽  
Radiographic Technique ◽  
Unit Increase ◽  
Percentage Yield

Radiographs obtained on 3460 Lacombe and Yorkshire baby pigs were examined to determine the association between vertebral size and number and carcass length. Carcass length increased approximately 1.3 cm per unit increase in vertebral number. Consideration of birth weight, slaughter weight, age at slaughter, and linear measurements of vertebrae at birth were not of value in improving the precision of prediction.A subgroup comprising 615 Lacombe pigs at slaughter weight were X-rayed immediately prior to slaughter in order to assess the predictive value of X-ray measurements of the vertebrae and backfat at slaughter weight. Multiple regression utilizing vertebral number and vertebral length at slaughter explained some 34% of the variation in carcass length. X-ray measurements of backfat thickness on the live animal were not found to be superior to the live probe in predicting percentage yield of lean cuts, and it was concluded that the radiographic technique was not superior to the simpler probe method for predicting cutout yield from measurements made on the live animal.

scholarly journals Impact of feeding cover crop forage containing brassicas to steers during backgrounding on live animal performance, carcass characteristics, and meat color

2021 ◽  
Author(s):  
C E Bakker ◽  
L M Hite ◽  
C L Wright ◽  
D W Brake ◽  
A J Smart ◽  
...  
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Dry Matter ◽  
Carcass Characteristics ◽  
Ground Beef ◽  
Dry Matter Intake ◽  
Feed Ratio ◽  
Animal Performance ◽  
Live Animal ◽  
The Impact

Abstract Brassica cover crops are an option for producers to incorporate into their cropping system to improve soil health and also provide a feed resource for cattle. While brassica cover crops have been widely used for grazing cows, their use as a backgrounding feedstuff is relatively unknown. The objective of this study was to determine the impact of feeding a brassica cover crop mixture during backgrounding on live animal performance and carcass characteristics. Thirty Angus-based steers were assigned to one of two dietary treatments during backgrounding 1) ad libitum access to a diet containing freshly cut brassica cover crop forage (CC) containing radish, turnip, rapeseed, rye grass and a liquid supplement or 2) common Midwestern dry lot growing diet containing silage, soybean meal, grass hay, and a liquid supplement (CON). Steers were assigned to electronic feed bunks (Insentec RIC, Hokofarm Group; Marknesse, Netherlands) for collection of individual feed intake. Diets were formulated to be nutritionally similar on a dry matter basis. Steers were paired by weight across treatments and pair fed. Dry matter intake was calculated daily for steers in the CC treatment and the following day CON steers were allowed access to an equal amount of dry matter using the Insentec RIC system. Steers were weighed weekly and backgrounded for 44 days before transitioning to a common finishing diet and weighed every 28 days. Steers were harvested at an estimated average backfat thickness of 1 cm. Standard carcass data were measured and strip loins and shoulder clods were collected. Instrumental and subjective color was measured on ground beef for 8 days and instrumental color was measured on strip steaks for 11 days. Treatment did not influence carcass characteristics, average daily gain, dry matter intake (P > 0.17). However, CON steers exhibited increased gain to feed ratio (P = 0.02). Additionally, a treatment by d interaction was observed for ground beef discoloration as the CC treatment displayed increased discoloration on day 4, 6, and 7 of case life (P < 0.01). These data indicate that brassicas may be utilized in a backgrounding diet without negatively impacting carcass characteristics but may decrease case life of ground beef.

Effects of live animal performance and hemoglobin level on special-fed veal carcass characteristics

Meat Science ◽  
1995 ◽  
Vol 41 (1) ◽  
pp. 89-96 ◽  
Author(s):  
L.L. Wilson ◽  
C.L. Egan ◽  
W.R. Henning ◽  
E.W. Mills ◽  
T.R. Drake
Keyword(s):  
Carcass Characteristics ◽  
Hemoglobin Level ◽  
Animal Performance ◽  
Live Animal

scholarly journals A High Dietary Incorporation Level of Chlorella Vulgaris Improves the Nutritional Value of Pork Fat Without Impairing the Performance of Finishing Pigs

2020 ◽  
Author(s):  
Diogo Coelho ◽  
José Pestana ◽  
João M. Almeida ◽  
Cristina M. Alfaia ◽  
Carlos M. G. A. Fontes ◽  
...  
Keyword(s):  
Meat Quality ◽  
Chlorella Vulgaris ◽  
Nutritional Value ◽  
Control Diet ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Finishing Pig ◽  
Pork Fat

The influence of a high inclusion level of Chlorella vulgaris, individually and supplemented with two carbohydrase mixtures, in finishing pig diets was assessed on zootechnical performance, carcass characteristics, pork quality traits and nutritional value of pork fat. Forty crossbred entire male pigs, sons of Large White × Landrace sows crossed with Pietrain boars, with an initial live weight of 59.1 ± 5.69 kg were used in this trial. Swines were randomly assigned to one of four dietary treatments (n=10): cereal and soybean meal-based diet (control), control diet with 5% C. vulgaris (CV), CV diet supplemented with 0.005% Rovabio® Excel AP (CV+R) and CV diet supplemented with 0.01% of a four-CAZyme mixture (CV+M). Animals were slaughtered, after the finishing period, with a BW of 101 ± 1.9 kg. Growth performance, carcass characteristics and meat quality traits were not influenced (p > 0.05) by the incorporation of C. vulgaris in the diets. However, the inclusion of the microalga in finishing pig diets increased some lipid-soluble antioxidant pigments and n-3 PUFA, and decreased the n-6:n-3 ratio of fatty acids, thus ameliorating the nutritional value of pork fat. Moreover, the supplementation of diets with the carbohydrase mixtures did not change (p > 0.05) neither animal performance nor meat quality traits, indicating their inefficacy in the increase of digestive utilization of C. vulgaris by pigs under these experimental conditions. It is concluded that the use of C. vulgaris in finishing pig diets, at this high incorporation level, improves the nutritional value of pork fat without compromising pig performance.

scholarly journals A High Dietary Incorporation Level of Chlorella vulgaris Improves the Nutritional Value of Pork Fat without Impairing the Performance of Finishing Pigs

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2384
Author(s):  
Diogo Coelho ◽  
José Pestana ◽  
João M. Almeida ◽  
Cristina M. Alfaia ◽  
Carlos M. G. A. Fontes ◽  
...  
Keyword(s):  
Meat Quality ◽  
Chlorella Vulgaris ◽  
Nutritional Value ◽  
Control Diet ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Finishing Pig ◽  
Pork Fat

The influence of a high inclusion level of Chlorella vulgaris, individually and supplemented with two carbohydrase mixtures, in finishing pig diets was assessed on zootechnical performance, carcass characteristics, pork quality traits and nutritional value of pork fat. Forty crossbred entire male pigs, sons of Large White × Landrace sows crossed with Pietrain boars, with an initial live weight of 59.1 ± 5.69 kg were used in this trial. Swines were randomly assigned to one of four dietary treatments (n = 10): cereal and soybean meal-based diet (control), control diet with 5% C. vulgaris (CV), CV diet supplemented with 0.005% Rovabio® Excel AP (CV + R) and CV diet supplemented with 0.01% of a four-CAZyme mixture (CV + M). Animals were slaughtered, after the finishing period, with a BW of 101 ± 1.9 kg. Growth performance, carcass characteristics and meat quality traits were not influenced (p > 0.05) by the incorporation of C. vulgaris in the diets. However, the inclusion of the microalga in finishing pig diets increased some lipid-soluble antioxidant pigments and n-3 PUFA, and decreased the n-6:n-3 ratio of fatty acids, thus ameliorating the nutritional value of pork fat. Moreover, the supplementation of diets with the carbohydrase mixtures did not change (p > 0.05) neither animal performance nor meat quality traits, indicating their inefficacy in the increase of digestive utilization of C. vulgaris by pigs under these experimental conditions. It is concluded that the use of C. vulgaris in finishing pig diets, at this high incorporation level, improves the nutritional value of pork fat without compromising pig performance.

Sign in / Sign up

Export Citation Format

Share Document