scholarly journals Carcass value of the progeny of tested beef bulls

2011 ◽  
Vol 49 (No. 7) ◽  
pp. 315-322 ◽  
Author(s):  
P. Polách ◽  
J. Šubrt ◽  
M. Bjelka ◽  
K. Uttendorfský ◽  
R. Filipčík
Keyword(s):  
Czech Republic ◽  
Beef Cattle ◽  
Fat Content ◽  
Carcass Weight ◽  
Control Groups ◽  
The Czech Republic ◽  
Dressing Percentage ◽  
Beef Bulls

In the study focused on the estimation of the efficiency of beef cattle in the conditions of the Czech Republic, 361 half-carcasses of the offspring of crossbred bulls of tested young beef sires were dissected. The bulls were fattened together and slaughtered at the age of 500 ± 30 days. The tested breeds were Aberdeen Angus (AA), Blonde d’Aquitaine (BA), Belgian Blue (BB), Charolais (CH), Hereford (HE), Limousine (LI), and Piemontese (PI). The control groups were bulls of the Czech Pied (C) and Holstein (H) breeds. The best commercial class according to the SEUROP system was found in the offspring of Charolais sires (3.17). The fat content was the highest in the BB group (2.45) and the lowest (P < 0.01) in the PI group (1.50). The average hot carcass weight was 332.54 kg and was significantly (P < 0.05) the lowest in bulls of the HE group (290.50 kg). After dissection the dressing percentage of meat, bone, separable fat, and the meat/bone ratio were calculated. The average meat percentage in the carcass was 78.47%. The dressing percentage of meat of PI group was 80.33% and was the highest of all the groups (P < 0.01). H group showed the highest proportion of bones (19.79%), which was by 2% higher than in PI group. The content of separable fat ranged between 1.29 and 3.68%.  

The effect of age, live-weight and rate-of-gain on dressing percentage and non-saleable fat content of Israel-Friesian bull calves

1967 ◽  
Vol 9 (1) ◽  
pp. 115-119 ◽  
Author(s):  
D. Levi ◽  
M. Soller ◽  
A. Shilo
Keyword(s):  
Genetic Correlation ◽  
Live Weight ◽  
Fat Content ◽  
Carcass Weight ◽  
Bull Calves ◽  
Kidney Fat ◽  
Dressing Percentage ◽  
Highly Correlated ◽  
Effect Of Age

Data were collected during 1961–2 on the live-weight, age and warm carcass weights of 83 lots of Israel-Friesian bull calves, 525 animals in all, the offspring of 26 sires. For varying numbers of these animals weight of various non-saleable fat components, including ruminal fat, kidney fat, inguinal fat and scapular fat were also obtained. Ruminal fat alone and ruminal fat plus kidney fat were found to be highly correlated with total non-saleable fat (r = 0·84 and 0·94, respectively). Heritability of dressing percentage was 0·20, of live-weight rate-of-gain 0·92, and of carcass rate-ofgain 0·49. The genetic correlation between live-weight and carcass weight was 0·7. Between-lot correlations indicated that increased rate-of-gain achieved through management will be accompanied by decreased dressing percentage and increased non-saleable fat content.

scholarly journals EFFECTS OF BREED OF SIRE AND BREED OF DAM OF COW ON CARCASS CHARACTERISTICS OF THREE-WAY CROSS BEEF CATTLE REARED AT TWO LOCATIONS

1983 ◽  
Vol 63 (4) ◽  
pp. 791-802 ◽  
Author(s):  
G. W. RAHNEFELD ◽  
H. T. FREDEEN ◽  
G. M. WEISS ◽  
J. A. NEWMAN ◽  
J. E. LAWSON
Keyword(s):  
Beef Cattle ◽  
Key Words ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Cattle Breeds ◽  
Kidney Fat ◽  
Dressing Percentage ◽  
Carcass Cuts

Carcass characteristics of 3673 steers and heifers born over a 6-yr period 1973–1978 at Brandon, Manitoba (farm conditions) and Manyberries, Alberta (range conditions) were compared. Calves weaned at Manyberries were fed and evaluated at Lacombe. The progeny were out of 10 specific F1 crosses of dams mated to bulls of the Charolais (C), Simmental (S), Limousin (L) and Chianina (Chi) breeds. Dam crosses included the Hereford × Angus (HA) and crosses sired by C, S and L sires out of H, A and Shorthorn (N) dams. Breed of sire of dam effects indicated that progeny from S cross cows generally had the heaviest carcasses S = C > L, the greatest carcass weight per day of age S = C > L, the highest percentage of dissected bone of the round S > C > L and rib S > C = L, the highest proportions of brisket S > L > C and flank S > L = C, and carried more kidney fat (percent liveweight) S > C = L and average rib fat S > C = L. Progeny from Limousin and Charolais cross cows had the highest dressing percentage [Formula: see text] and rib eye area/100 kg carcass wieght L > C > S while those from Limousin cross cows had the highest proportion of long loin and the combined lean cuts (rib, round and long loin) a higher percentage of dissected lean in the round L > C > S and the highest lean-to-bone ratio L > C > S. Progeny from dams of Shorthorn breeding generally had the heaviest carcasses, the greatest carcass weight per day of age, the highest percentage kidney fat and at Brandon the greatest proportions of plate and brisket. Hereford cross dams consistently produced progeny with the highest percentage head H = A > N, hide [Formula: see text], feet H > A = N, percentage bone in the long loin [Formula: see text], round [Formula: see text], and rib [Formula: see text], and the highest percentage lean in the long loin H > N (Brandon) and chuck H > N (Brandon). The progeny from Angus cross dams carried the greatest average rib fat [Formula: see text], had the greatest rib eye area/100 kg carcass weight [Formula: see text], the highest percentage lean in the round [Formula: see text], and the highest lean to bone ratio A > H = N. Key words: Cattle, breeds, carcass, cuts, composition

Crossbreeding beef cattle in Western Uganda 5. Growth and carcass evaluation of castrated males

1971 ◽  
Vol 13 (1) ◽  
pp. 171-180 ◽  
Author(s):  
J. C. M. Trail ◽  
G. D. Sacker ◽  
H. J. S. Marples
Keyword(s):  
Beef Cattle ◽  
Carcass Traits ◽  
Fat Content ◽  
Hybrid Vigour ◽  
Carcass Yield ◽  
Dressing Percentage ◽  
Western Uganda ◽  
Weight For Age ◽  
Zebu Cows

SUMMARYGrowth from two years to three years and carcass yield and composition were evaluated in nine types of steers produced by mating Angus, Boran and Red Poll bulls to Ankole, Boran and local Zebu cows. One hundred and nine steers were slaughtered at the average age of 3 years and 1 month.At three years of age, steers by Angus and Red Poll sires were 7% heavier than steers by Boran sires, while progeny of Boran and Ankole dams were 14% heavier than progeny of Zebu dams. Significant hybrid vigour effects on weight-for-age were found.After adjustment for weight and age at slaughter, linear carcass measurements supported the impression that steers by Angus sires were more compact and blocky than steers by Red Poll and Boran sires and that progeny of Ankole dams were longer in the leg and body than progeny of Boran and Zebu dams. Steers by Red Poll sires appeared to have a higher fat content than steers by Angus and Boran sires on the basis of dissection of a tenth rib sample joint. Progeny of Boran dams had a higher dressing percentage than progeny of Ankole and Zebu dams. Hybrid vigour appeared to have little effect on carcass traits.

scholarly journals Estimation of animal × environment interaction in Czech beef cattle

2009 ◽  
Vol 52 (1) ◽  
pp. 15-22
Author(s):  
L. Vostrý ◽  
J. Přibyl ◽  
W. Schlote ◽  
Z. Veselá ◽  
V. Jakubec ◽  
...  
Keyword(s):  
Animal Model ◽  
Czech Republic ◽  
Beef Cattle ◽  
Variance Components ◽  
Genetic Correlations ◽  
Environment Interaction ◽  
Multiple Trait ◽  
The Czech Republic ◽  
Standard Deviations ◽  
Maternal Heritability

Abstract. The objective was the estimation of animal × environment interaction for weaning weight (WWT) of the most frequent breeds of beef cattle in the Czech Republic. The environment was represented by 3 areas: Mountain (1), Foothills (2) and Lowland (3). A pairwise analysis was carried out between the areas: 1 vs 2 (n=5 149) and 2 vs 3 (n=4 971) for the estimation of (co)variance components and genetic correlations between the environments. A multiple-trait animal model was used where weaning weights in different areas were considered as different traits. The direct and maternal heritability estimates of WWT were for area (1): 0.12 (direct) and 0.05 (maternal); for (2): 0.26 and 0.11 (direct), 0.10 and 0.11 (maternal) and for (3): 0.26 (direct) 0.03 (maternal). Direct and maternal genetic correlations were between: 1 and 2 0.98 and 0.65 respectively, with standard deviations 0.03 and 0.37 respectively, and between 2 and 3: 0.82 and 0.50 respectively, with standard deviations 0.12 and 0.31 respectivly. The magnitude of the across-areas genetic correlation indicates that the animal by environment interaction was not biologically important and can be ignored in the evaluation of beef cattle in the Czech Republic.

COMPENSATORY GROWTH OF BEEF CATTLE RESTRICTED AT TWO ENERGY LEVELS FOR TWO PERIODS

1973 ◽  
Vol 53 (4) ◽  
pp. 709-715 ◽  
Author(s):  
R. HIRONAKA ◽  
G. C. KOZUB
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Compensatory Growth ◽  
Energy Levels ◽  
The Other ◽  
Carcass Weight ◽  
Feeding Period ◽  
Group 13 ◽  
M 12 ◽  
Dressing Percentage

Ninety Hereford steer calves averaging 212 kg in body weight were divided into six groups and fed an all-concentrate diet until marketing. One group was full fed; the other groups were restricted in amounts of feed for 12 or 24 wk at a low (L) or medium (M) level and then placed on full feed. The full-fed steers required 230 days to reach a market weight of 489 kg; the steers on restricted feed for 12 or 24 wk compensated by higher rates of gain when placed on full feed but still required a longer time to reach market weight. The amount of feed eaten during the entire feeding period was similar in all groups. Restricted steers had a lower dressing percentage and tended to have less backfat per unit of carcass weight than the full-fed steers but all had the same area of rib eye. Sixty percent of the carcasses graded commercial-3 in the full-fed group, 36% in the M-12 group, 43% in the L-12 group, 13% in the M-24 group, and 7% in each of the L-24 and L-12-M-12 groups. The remainder of the carcasses graded choice.

scholarly journals THE FUTURE OF GRASSLANDS AND BEEF CATTLE IN THE CZECH REPUBLIC

2013 ◽  
Vol 16 (02) ◽  
pp. 40-49 ◽  
Author(s):  
Miluše Abrahamová ◽  
Jan Boudný ◽  
Iveta Boškova ◽  
Ivan Foltýn ◽  
Martin Hruška ◽  
...  
Keyword(s):  
Czech Republic ◽  
Beef Cattle ◽  
The Czech Republic ◽  
The Future

Social variation in size at birth and preterm delivery in the Czech Republic and Sweden, 1989-91

1998 ◽  
Vol 12 (1) ◽  
pp. 7-24 ◽  
Author(s):  
Koupilova ◽  
Vagero ◽  
Leon ◽  
Pikhart ◽  
Prikazsky ◽  
...  
Keyword(s):  
Czech Republic ◽  
Preterm Delivery ◽  
The Czech Republic ◽  
Social Variation ◽  
Size At Birth

On Geropsychology in the Czech Republic

GeroPsych ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 161-166
Author(s):  
Hana Stepankova ◽  
Eva Jarolimova ◽  
Eva Dragomirecka ◽  
Irena Sobotkova ◽  
Lenka Sulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Clinical Practice ◽  
Old Age ◽  
Cognitive Rehabilitation ◽  
The Czech Republic ◽  
Rehabilitation Research

This work provides an overview of psychology of aging and old age in the Czech Republic. Historical roots as well as recent activities are listed including clinical practice, cognitive rehabilitation, research, and the teaching of geropsychology.

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