scholarly journals Prediction of gross feed efficiency in Italian Holstein Friesian bulls

Poljoprivreda ◽  
2015 ◽  
Vol 21 (1 Supplement) ◽  
pp. 83-85
Author(s):  
Raffaella Finocchiaro ◽  
◽  
Mauro Penasa ◽  
Maurizio Marusi ◽  
Massimo De Marchi ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Holstein Friesian

The effect of slaughter weight on growth and carcass traits of Holstein-Friesian bulls offered a cereal-based diet

2002 ◽  
Vol 2002 ◽  
pp. 156-156
Author(s):  
R.M. Kirkland ◽  
R.W.J. Steen ◽  
D.C. Patterson
Keyword(s):  
Feed Efficiency ◽  
Carcass Traits ◽  
Minimum Cost ◽  
Beef Industry ◽  
Slaughter Weight ◽  
Bull Calves ◽  
Holstein Friesian ◽  
Beef Producers ◽  
Ready Availability ◽  
Production Characteristics

With the current situation of low profitability in the beef industry, producers must aim to produce beef efficiently and at minimum cost. In view of the ready availability of Holstein Friesian bull calves as a by-product of the dairy industry, the rearing and finishing of these animals offers a possible source of income to beef producers. The objective of the present study was to examine the influence of slaughter weight on feed efficiency and production characteristics of Holstein-Friesian bulls offered a cereal-based diet.

A COMPARISON OF THE GROWTH, FEED EFFICIENCY AND CARCASS CHARACTERISTICS BETWEEN PUREBRED HOLSTEIN-FRIESIAN STEERS AND LIMOUSIN × HOLSTEIN (F1) STEERS AND HEIFERS

1981 ◽  
Vol 61 (3) ◽  
pp. 515-521 ◽  
Author(s):  
R. J. FORREST
Keyword(s):  
Growth Phase ◽  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Feed Consumption ◽  
Meat Production ◽  
Growth Stages ◽  
Stages Of Growth ◽  
Holstein Friesian ◽  
Three Stages ◽  
Rates Of Growth

A comparison was made of the growth and carcass characteristics of 39 purebred Holstein-Friesian (HF) steers, 42 Limousin × Holstein-Friesian (Lim × Hol) steers, and 50 Lim × Hol crossbred F1 heifers. An assessment was also made of the feed consumption at three growth stages (200–300, 300–400 and 400–500 kg) of 20, 21 and 20 animals in each of these three groups, respectively. The two steer groups outgained the heifers at all three stages of growth, while the Lim × Hol steers gained significantly faster (P < 0.05) than the HF only during the 300- to 400-kg growth phase. Rates of growth during the 400- to 500-kg phase were 1.46, 1.53 and 1.04 kg/day for the HF, Lim × Hol steers and heifers, respectively. The heifers had the most estimated carcass fat (20.61%), the Lim × Hol steers the least (15.97%), and the HF were intermediate (18.07%) (P < 0.05). The Lim × Hol steers had the greatest amount of carcass lean (74.20%) (P < 0.05) and the Lim × Hol groups were superior to the HF in carcass conformation when expressed in terms of proportion of high-priced cuts (hind and back). These results indicate that the Lim × Hol steers produced better cutting and more desirable carcasses than purebred Holstein-Friesian steers and the Lim × Hol heifers. The HF steers and Lim × Hol heifers were similar in lean meat production (70.33 ± 0.17%).

scholarly journals Dry matter intake and feed efficiency profiles of 3 genotypes of Holstein-Friesian within pasture-based systems of milk production

2010 ◽  
Vol 93 (9) ◽  
pp. 4318-4331 ◽  
Author(s):  
J. Coleman ◽  
D.P. Berry ◽  
K.M. Pierce ◽  
A. Brennan ◽  
B. Horan
Keyword(s):  
Milk Production ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Holstein Friesian

The performance, carcass characteristics and meat quality of two breeds of cattle taken to slaughter at three different levels of backfat thickness

1993 ◽  
Vol 1993 ◽  
pp. 211-211
Author(s):  
S. Thomas ◽  
K. Demeke
Keyword(s):  
Meat Quality ◽  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Backfat Thickness ◽  
Initial Weight ◽  
Improve Efficiency ◽  
Holstein Friesian ◽  
Different Levels

Slaughtering cattle at lighter weights to produce leaner meat might be expected to improve efficiency of production. An earlier experiment with Hereford x Friesian steers (Thomas, Kay, Hamilton and Fisher, 1987) showed no significant effect on feed efficiency when cattle were slaughtered at three different EC fat classes. An experiment was subsequently carried out to examine the effect on performance, carcass characteristics and meat quality of two breeds of cattle slaughtered at three different levels of fatness. In this experiment backfat depth was used as the criterion for slaughter.Thirty Hereford x Friesian/Holstein steers (initial weight 326 kg) and 30 Limousin x Holstein/Friesian steers (initial weight 340 kg) were used in the experiment.

A COMPARISON OF GROWTH AND CARCASS CHARACTERISTICS BETWEEN HOLSTEIN-FRIESIAN STEERS AND SIMMENTAL × HOLSTEIN (F1) CROSSBREDS

1980 ◽  
Vol 60 (3) ◽  
pp. 591-598
Author(s):  
R. J. FORREST
Keyword(s):  
Feed Efficiency ◽  
Growth Stage ◽  
Carcass Characteristics ◽  
Carcass Composition ◽  
The Body ◽  
Feed Consumption ◽  
Constant Weight ◽  
Metatarsal Bones ◽  
Holstein Friesian ◽  
Consumption Data

The carcass characteristics of 42 purebred Holstein-Friesian (Hol) steers were compared with 64 (37 steers and 27 heifers) Simmental (Sim) × Hol, F1 crossbreds. These offspring were the product of three Holstein and three imported Simmental sires. A portion of the calves (20 Holstein; 18 crossbred steers and 13 heifers) were individually fed to provide growth and feed consumption data. There were no significant differences in either rate of gain or feed efficiency between the purebred and crossbred steers at any growth stage between 200 and 500 kg body weight. The heifers were significantly (P < 0.05) less efficient between 300 and 500 kg and grew more slowly (1.09 compared to 1.62 kg/day) between 400 and 500 kg than the steers. Carcass characteristics were taken after slaughter at constant weight (500 kg). The Holsteins dressed lower (56.3%) than the crossbreds (57.4%). The Holsteins had less hide (33.4 kg) than either the crossbred heifers (37.9 kg) or steers (40.4 kg). However, the Holsteins had heavier livers (6.73 kg) and kidneys (1.11 kg) than the crossbred steers (6.16 and 1.01 kg) which in turn had significantly heavier livers and kidneys than the crossbred heifers (5.71 and 0.87 kg). The crossbred heifers had the greatest amount of offal fat, 33.5 kg, the crossbred steers the least, 19.8 kg, whereas the Holsteins were intermediate with 25.0 kg. The Holsteins were longer in the body, deeper in the chest, and thinner at the shoulder and round than the crossbred groups. The two steer groups were similar in carcass proportions, whereas the heifers were lighter in the chuck and shank areas and heavier in the back and belly regions. The crossbred heifers had the lightest (503 g) but most dense metatarsal bones (SG = 1.594) while the Holsteins had the longest (26.3 cm) and the crossbred steers the least dense (SG = 1.533) metatarsal bones. In carcass composition, the crossbred heifers had the most fat, 20.7%, whereas the steers of both breeds averaged 15.8%. The Holstein had the most bone (13.4%) and the heifers the least (12.1%) while the crossbred steers were intermediate (12.8%). With respect to lean, the heifers had the least (67.2%) while the crossbred steers had the most 71.8%) and the Holsteins were intermediate (70.4%).

THE EFFECT OF HORMONES ON THE RATE OF GAIN AND FEED CONSUMPTION OF HOLSTEIN–FRIESIAN STEERS SLAUGHTERED AT 340, 522, AND 703 KILOGRAMS BODY WEIGHT

1965 ◽  
Vol 45 (3) ◽  
pp. 173-179 ◽  
Author(s):  
R. J. Forrest ◽  
Lois A. Sather
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Feed Consumption ◽  
Growth Enhancement ◽  
Flavor Preference ◽  
Control Groups ◽  
Flavor Panel ◽  
Daily Rate ◽  
Holstein Friesian ◽  
Panel Evaluation

The estrogenic hormones diethylstilbestrol and progesterone plus estradiol–17-β-benzoate significantly increased (p < 0.05) the daily rate of gain and feed efficiency of Holstein–Friesian steers when they were implanted at 181, 363, and 544 kg body weight and slaughtered at 340, 522, and 703 kg respectively. The effects of the two hormone implants were not significantly different. Growth enhancement was greatest in steers implanted at 363 and slaughtered at 522 kg body weight. During this stage the treated steers gained 1.42 kg per day as compared with 1.08 kg for their controls. Steers implanted at 181 and 544 kg gained 1.31 and 1.27 kg per day. Their respective control groups gained 1.15 and 0.97 kg per day at these two growth stages.Hormone treatment also significantly increased (p < 0.05) the daily feed consumption of the medium and heavy weight steers when approximately 80% of the ration consisted of concentrates.A flavor panel evaluation of rib roast samples from 67 of the 72 test steers indicated a flavor preference for the untreated control animals.

Effects of different initial weights on fattening performance, slaughter and carcass characteristics of Holstein Friesian and Brown Swiss young bulls

2015 ◽  
Author(s):  
A. Diler ◽  
R. Kocyigit ◽  
M. Yanar ◽  
R. Aydin ◽  
N. Tuzemen
Keyword(s):  
Feed Efficiency ◽  
Light Weight ◽  
Efficiency Ratio ◽  
Weight Group ◽  
Brown Swiss ◽  
Holstein Friesian ◽  
Feed Efficiency Ratio ◽  
Final Weight ◽  
Weight Groups ◽  
Better Than

A total of 27 young bulls [13 Brown Swiss (BS) and 14 Holstein Friesian (HF)] were fed to investigate the effects of initial fattening weights [light weight group (LG= 176.0± 3.5 kg) and heavy weight group (HG= 213.8±3.7 kg)] on the performance, slaughter and carcass traits. With increasing initial fattening weight, final weight (P the initial fattening weights in favour of bulls in HG. Average SEUROP conformation score of HG carcasses was one class better than that of LG carcasses. It was concluded that young bulls in HG had better slaughter characteristics, carcass measurements and percentage of kidney, pelvic and heart fat than these in LG, while performance and feed efficiency ratio of the animals in the different weight groups were not statistically different.

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