QUALITÉ DES CARCASSES DES TAURILLONS HOLSTEIN ALIMENTÉS À DEUX NIVEAUX D'ORGE EN PÉRIODE DE FINITION

1987 ◽  
Vol 67 (3) ◽  
pp. 855-858
Author(s):  
S. A. POMMIER ◽  
P. M. FLIPOT ◽  
G. LALANDE
Keyword(s):  
Key Words ◽  
Energy Levels ◽  
Carcass Characteristics ◽  
Holstein Bulls ◽  
Fat Thickness ◽  
Ad Libitum ◽  
Feeding Systems

We studied the effects of two levels of barley in the finishing period on the carcass characteristics of 129 Holstein bulls reared on different feeding systems. Greater fat thickness (P < 0.05) was associated with higher barley levels in the finishing period. Animals fed barley ad libitum produced a greater proportion of grade A1 and B1 carcasses compared to animals fed only 5 kg of barley (28.0 and 48.0% vs. 12.0 and 37.0%, respectively, P < 0.05). Key words: Carcass, Holstein bulls, energy levels, barley, management

scholarly journals Carcass characteristics of immunocastrated steers finished on diets with different energy patterns

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
A.F. De Moura ◽  
D.C.A. Filho ◽  
I.L. Brondani ◽  
L.B. Pereira ◽  
G. Joner ◽  
...  
Keyword(s):  
Energy Levels ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Dietary Energy ◽  
Marbling Score ◽  
Randomized Design ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Completely Randomized Design ◽  
Dietary Treatments

The aim of this study was to evaluate the effects of various dietary energy levels on the carcass and meat characteristics of feedlot-finished steers. A total of 27 purebred and crossbred Charolais and Nellore steers were used, with a mean initial age of 22 months and weight of 253 kg. The animals were allotted to a completely randomized design with three treatments and nine replicates each. Dietary treatments were arranged so that the average forage to concentrate ratio (FCR) was equivalent to that of a constant FCR treatment. The treatments consisted of CT (constant FCR at 60 to 40), CT5 (starting with 70: 30 FCR and finishing with 50: 50 FCR, that is, a mean overall FCR of 60: 40), and CT10 (starting with 80: 20 FCR and finishing with 40: 60, that is, a mean overall FCR of 60: 40). The dietary treatments did not affect slaughter weight, carcass weight, carcass conformation, physiological maturity, subcutaneous fat thickness, ribeye area, marbling score, and carcass measurements or the yield of commercial cuts. Chilling loss was higher in CT10 steers (2.41%) than in CT (2.26%) and CT5 (2.15%).

ETHIONINE SUPPLEMENTATION OF BARLEY DIETS CONTAINING LENTILS (Lens culinaris) OR SOYBEAN MEAL: LIVE PERFORMANCE AND CARCASS RESPONSES BY GILTS FED AD LIBITUM

1990 ◽  
Vol 70 (1) ◽  
pp. 329-332 ◽  
Author(s):  
A. G. CASTELL ◽  
R. L. CLIPLEF
Keyword(s):  
Key Words ◽  
Soybean Meal ◽  
Lens Culinaris ◽  
Carcass Characteristics ◽  
Live Performance ◽  
Key Words Pig ◽  
Ad Libitum ◽  
Improved Performance

Barley-based diets, containing 13.3% soybean meal or 40.0% lentils, were fed over the period from 25 to 90 + kg liveweight. Supplementation with 0.1% DL-methionine improved performance and carcass characteristics of lentil-fed pigs to the level of those receiving soybean meal diets. Key words: Pig, barley, lentils, methionine, carcass

CARCASS CHARACTERISTICS OF YEARLING NORMAL AND DOUBLE MUSCLE CROSS BULLS

1989 ◽  
Vol 69 (4) ◽  
pp. 897-903
Author(s):  
P. F. ARTHUR ◽  
M. MAKARECHIAN ◽  
M. A. PRICE ◽  
R. T. BERG
Keyword(s):  
Key Words ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Double Muscle ◽  
Slaughter Age ◽  
Fat Thickness

Data on 99 young bulls, which were the progeny of matings of either double muscle bulls and normal cows (DMx) or normal bulls and normal cows (N) born over three calving seasons, were analyzed to compare the carcass characteristics and lean yield of yearling DMx and N bulls. DMx carcasses had larger (P < 0.001) ribeye areas and cutability but smaller (P < 0.001) grade fat and average fat thicknesses than N carcasses, when the data were adjusted to either constant slaughter age (395.7 d) or constant carcass weight (304.7 kg). Muscle:fat and muscle:bone ratios and percent muscle in the 10th-11th-12th rib joint were higher (P < 0.001), while percent fat and percent bone in the rib joint were lower (P < 0.005) in DMx compared to N carcasses, when the data were adjusted to either constant grade fat thickness (10.0 mm) or constant rib joint weight (4871.4 g). The magnitude of the observed superiority of DMx over normal carcasses in lean yield was not the same across carcass grades. For A1 or A2 carcasses, rib joints from DMx carcasses had 8.8 and 5.7%, respectively, more (P < 0.05) muscle than those from N carcasses. Key words: Carcass characteristics, double muscle, crosses, cattle

Effects of trenbolone acetate on swine carcass characteristics and backfat composition

1992 ◽  
Vol 72 (4) ◽  
pp. 969-972
Author(s):  
M. Martinez ◽  
C. López-Bote ◽  
G. Sancho ◽  
J. Ventanas
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Key Words ◽  
Acid Composition ◽  
Carcass Characteristics ◽  
The Other ◽  
Control Treatment ◽  
Trenbolone Acetate ◽  
Key Words Pig ◽  
Fat Thickness

Twenty-four gilts and 24 barrows were divided into two groups of 12 of each gender. One group was implanted with 300 mg of trenbolone acetate, and the other one was used as a control. Treatment had no effect on fat thickness in gilts but significantly reduced fatness in barrows. The fatty acid composition of the backfat showed a tendency toward greater unsaturation in treated barrows. Key words: Pig, trenbolone acetate, anabolic

scholarly journals 33 Determining the feeding value of hulless barley relative to corn in beef finishing rations

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 47-47
Author(s):  
Gabriel J Pent ◽  
Thomas B Wilson
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
The Other ◽  
Hulless Barley ◽  
Feeding Value ◽  
Fat Thickness ◽  
Ad Libitum ◽  
Daily Gain

Abstract Hulless varieties of barley have been developed to improve the digestibility of this small grain. The objective of this project was to determine the feeding value of hulless barley relative to corn in a beef-finishing ration. Angus-cross steers (n = 12) were fed rations that included varying ratios of cracked corn and cracked hulless barley. Steers were stratified by body weight (BW) and allotted to one of four rations: corn, 2:1 ratio of corn to barley, 1:2 ratio of corn to barley, and barley. All treatments included concentrate at 85% and baleage at 15% of total ration dry matter (DM). Rations were fed ad libitum on an individual basis using Calan gates. Feed refusals were measured daily. Steers were weighed and ultrasound 12th rib fat thickness (FT) was measured every 28 d. Steers were harvested at a commercial abattoir when average FT exceeded 0.9 cm. Average daily gain (1.2 kg/d), final BW (653 kg), feed to gain efficiency (10.2:1), and final ultrasound FT (0.94 cm) were not different (P ≥ 0.1486) between treatments. Steer DM intake was lower (P ≤ 0.0496) for those fed corn (9.8 kg/d) compared to those fed barley (12.2 kg/d) or a 1:2 ratio of corn to barley (11.7 kg/d); steer DM intake was similar (P ≥ 0.0640) for those fed a 2:1 ratio of corn to barley compared to those fed the other rations. Finishing ration did not affect hot carcass weight (384 kg; P = 0.7158), carcass FT (1.6 cm; P = 0.9511), ribeye area (87.7 cm^2; P = 0.7184), kidney, pelvic, and heart fat (2.6%; P = 0.3842), and yield grade (3.5; P= 0.8802). Feeding hulless barley compared to corn resulted in similar performance and carcass characteristics when included in beef finishing rations although feed intake was greater when barley exceeded 56% of the ration DM.

scholarly journals The Effect of Beef Production System on the Health, Performance, Carcass Characteristics, and Meat Quality of Holstein Bulls

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1922
Author(s):  
Naomi H. Rutherford ◽  
Alan W. Gordon ◽  
Gareth Arnott ◽  
Francis O. Lively
Keyword(s):  
Meat Quality ◽  
Production System ◽  
Production Systems ◽  
Carcass Characteristics ◽  
Concentrate Supplementation ◽  
Grass Silage ◽  
Health Performance ◽  
Holstein Bulls ◽  
Ad Libitum

The aim of this study was to evaluate the effect of production system on the health, performance, carcass characteristics, and meat quality of autumn born (AB) and spring born (SB) Holstein bulls. The study involved a total of 224 Holstein bulls and was conducted over two years (2017/18, 2018/19). The four production system treatments differed during the grower period and consisted of: (i) grazed with no concentrate supplementation (G), (ii) grazed with 2 kg concentrate supplementation per day (G2), (iii) grazed with ad libitum access to concentrates (GA) and (iv) housed with ad libitum access to concentrates and grass silage (HA). All bulls were finished on ad libitum concentrates and grass silage and were slaughtered at a mean age of 15.5 months. Total grower dry matter intake (DMI) (p < 0.001) and total finishing DMI (p < 0.001) differed between production systems for both AB and SB bulls, with that of GA bulls being the greatest in both cases. Average daily gain (ADG) during the grower period was greatest (p < 0.001) for the HA production system in the AB bulls and the GA and HA production systems for the SB bulls. However, during the finishing period, G bulls had the greatest (p < 0.001) ADG of the AB bulls, while that of the SB bulls was from the G2 production system (p < 0.001). For both AB and SB, bulls on the GA and HA production systems produced heavier cold carcass weights than the G and G2 bulls (p < 0.001). There was no significant difference (p > 0.05) in health, carcass conformation, fat classification, or meat quality between production systems.

Nutritional characteristics of Angus cows differing in lifetime calf production

1991 ◽  
Vol 71 (2) ◽  
pp. 603-606
Author(s):  
William D. Hohenboken ◽  
Roger T. Bass II ◽  
J. P. Fontenot ◽  
William H. McClure
Keyword(s):  
Key Words ◽  
Passage Rate ◽  
Nutritional Characteristics ◽  
Fat Thickness ◽  
Ad Libitum ◽  
Fat Accretion

Cows with better versus poorer lifetime calf production did not differ significantly in intake or passage rate of digesta under ad libitum concentrate or roughage feeding. On the concentrate diet, better cows tended towards greater fat accretion than poorer cows. On roughage they maintained, while poorer cows lost fat thickness. Key words: Cows, intake, passage rate, fat thickness

GROWTH AND CARCASS CHARACTERISTICS OF LATE-FATTENING STEERS ON DIFFERENT FEEDING SYSTEMS

1984 ◽  
Vol 64 (2) ◽  
pp. 313-322 ◽  
Author(s):  
R. E. ROMPALA ◽  
S. D. M. JONES ◽  
J. G. BUCHANAN-SMITH ◽  
J. W. WILTON ◽  
J. H. BURTON
Keyword(s):  
Carcass Characteristics ◽  
Corn Silage ◽  
Average Weight ◽  
Net Energy ◽  
Feeding System ◽  
Energy Retention ◽  
Fat Thickness ◽  
Alfalfa Silage ◽  
Rates Of Growth ◽  
Feeding Systems

One hundred Charolais-cross feeder steers (average weight = 280 kg) were allotted to one of five feeding systems: HG, a diet comprising 75% concentrates fed throughout the trial; MG, a diet comprising equal amounts of concentrates and corn silage provided throughout the trial; CS, corn silage fed throughout the trial; CS-HG, corn silage fed to 400 kg liveweight followed by feeding the 75% concentrate diet; and AS-HG, alfalfa silage provided to 400 kg liveweight followed by feeding the 75% concentrate diet. The steers were slaughtered at a constant estimated finish (8 mm fat thickness 11th/12th ribs), in order to grade Canada A1. Grade and carcass characteristics data were collected for all carcasses and a sample of eight carcasses per treatment was selected at random to determine muscle content, fat partitioning and distribution. Average daily rates of gain for steers on HG, MG, CS, CS-HG, and AS-HG were 1.27, 1.25, 0.79, 1.15, and 1.03 kg/day, respectively. The rates of gain for steers on feeding systems HG, MG, and CS declined with time contrary to steers on feeding systems CS-HG and AS-HG, which showed accelerated rates of growth following the backgrounding period. Steers having the highest overall rates of gain had the best feed to gain conversions. Increased rates of gain were related to less time on feed and lighter slaughter weights. Carcass dissection showed no major differences with respect to muscle:bone ratio, wholesale cut distribution, fat partitioning and distribution due to the feeding system employed. Net energy retention for gain, estimated from carcass specific gravity, was much lower than values obtained from NRC. Forage feeding late-fattening steers under 400 kg and subsequent concentrate feeding did not affect major carcass traits. However, late-fattening cattle provided with diets based on large amounts of forages or corn silage may not attain desirable finish at acceptable slaughter weights. Key words: Late-fattening cattle, slaughter weight, carcass, feeding systems, backgrounding

scholarly journals Effect of monensin sodium associative to virginiamycin and/or essential oils on the performance of feedlot finished steers

2018 ◽  
Vol 39 (1) ◽  
pp. 261
Author(s):  
Julio Cezar Heker Junior ◽  
Mikael Neumann ◽  
Robson Kyoshi Ueno ◽  
Margarete Kimie Falbo ◽  
Sandra Galbeiro ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Feeding Behavior ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Average Weight ◽  
Apparent Digestibility ◽  
Fat Thickness

The objective of this study was to evaluate the associative effect of monensin sodium to virginiamycin and/or essential oils on performance, consumption of nutrients and dry matter, apparent digestibility, feeding behavior and carcass characteristics of feedlot finished steers. The experiment lasted 106 days with 10 days of adaptation and 96-day trial, and had 32 crosses angus steers, average age 12 months and average weight of 376 kg, divided into 16 stalls, the weighing took place every 21 days and at the end of the experiment. The treatments consisted of the combination of the following additives to the diet included: Monensin sodium, 200 mg day-1 (MO); Monensin sodium, a dose of 200 mg day-1 + essential oil dose of 1.5g day-1 (MO+EO); Monensin sodium, a dose of 200 mg day-1 + virginiamycin, 200 mg day-1 (MO+VI); Monensin sodium, 200 mg day-1 + essential oil dose of 1.5g day-1 + virginiamycin day, 200 mg day-1 (MO+EO+VI), each treatment had four repetitions, where each repetitions consisted of a bay with two animals. The MO+VI association in relation to MO only increase in average daily gain (ADG) of 24.44%, 22.35%, 21.10% and 17.31% in weighing 42, 63, 84 and 96 days, similar the combination of MO+EO+VI which provided an improvement of 21.94%, 13.59%, 15.45% and 14.75% respectively in the same weightings. The daily carcass gain and carcass overall gain were higher in associations MO+VI and MO+EO+VI and provided an average gain of 16.67 kg more compared to MO and MO+EO. In the parameters feed efficiency, dry matter intake and nutrient expressed in kg day-1 and percentage of live weight were not observed differences (P > 0.05) between treatments. Data on apparent digestibility, feeding behavior and carcass characteristics did not show statistical difference between treatment, except for fat thickness which was higher when associated with any of the additives to the MO, and farm weight was higher in associations containing VI. Associating MO+VI or MO+EO+VI proved to be best in this work compared to MO+EO or only MO in the diets of steers in termination.

PATTERNS OF MUSCLE, BONE, AND FAT ACCRETION IN THREE BIOLOGICAL TYPES OF FEEDLOT BULLS FED THREE DIETARY ENERGY LEVELS

1985 ◽  
Vol 65 (2) ◽  
pp. 351-361 ◽  
Author(s):  
D. L. PATTERSON ◽  
M. A. PRICE ◽  
R. T. BERG
Keyword(s):  
Key Words ◽  
Energy Levels ◽  
Subcutaneous Fat ◽  
Body Cavity ◽  
Tissue Growth ◽  
Carcass Composition ◽  
Dietary Energy ◽  
Actual Weight ◽  
Age Range ◽  
Tissue Accretion

The effect of three types of diet on the carcass composition of 71 feedlot bulls of three biological types (Dairy Cross (DX), Hereford Cross (HX), and Beef Cross (BX)) was studied over a 2-yr period. Diets consisted of pelleted alfalfa with 0, 35 or 85% grain. Serial slaughter and carcass dissection into eight wholesale cuts and component tissues were carried out over an age range of 392–636 days. Interactions of biological type with diet-year were generally not significant for actual weight of muscle, bone and fat, or for weight of these tissues at a constant side subcutaneous fat weight of 16 kg. There were few significant effects of biological type or diet-year on the ratio of actual weight of subcutaneous to intermusclar plus body cavity fat. HX bulls had significantly less muscle and less bone than BX or DX, based on actual weights, but the rate of tissue accretion relative to side subcutaneous fat was the same for the three biological types. Animals on the lowest level of dietary energy had less weight of fat than did those on an 85% grain diet, but diet-year growth coefficients of tissue weights relative to side subcutaneous fat weight were generally homogeneous. It was concluded that effects of dietary energy were consistent over the biological types studied and for most of the wholesale cuts. Key words: Feedlot bulls, diet, biological types, tissue growth

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