scholarly journals The Effect of Feeding High Energy Diets Containing Supplemental Fat on Broiler Weight Gain, Feed Efficiency, and Carcass Composition

1981 ◽  
Vol 60 (6) ◽  
pp. 1264-1271 ◽  
Author(s):  
C.N. COON ◽  
W.A. BECKER ◽  
J.V. SPENCER
Keyword(s):  
Weight Gain ◽  
Feed Efficiency ◽  
High Energy ◽  
Carcass Composition ◽  
Supplemental Fat ◽  
Effect Of Feeding

Finishing steers on high-grain rations. Effects of type of silage, level of urea, vitamin A and cobalt supplementation on body-weight gain, feed efficiency and carcass composition

1967 ◽  
Vol 68 (1) ◽  
pp. 1-9 ◽  
Author(s):  
J. G. Morris ◽  
R. J. W. Gartner
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Vitamin A ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
Grain Sorghum ◽  
Carcass Composition ◽  
Finishing Steers ◽  
Sorghum Silage ◽  
Sorghum Grain

1. A 23 factorial with a split-plot allocation of treatments was used to investigate the effects of silage type, (sweet v. grain sorghum); level of urea, (60ν. 120 g. per head per day); vitamin A,(0ν. 40,000 i.u. per head per day), and intraruminal cobalt oxide pellet on the performance of steers fed rations of 90% sorghum grain, 10% sorghum silage.

The effect of level of dietary protein on the carcass composition of bacon pigs

1965 ◽  
Vol 7 (3) ◽  
pp. 363-376 ◽  
Author(s):  
D. W. Holme ◽  
W. E. Coey ◽  
K. L. Robinson
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Dietary Protein ◽  
Growth Pattern ◽  
Live Weight ◽  
High Energy ◽  
Carcass Composition ◽  
Linear Measurements ◽  
Live Weight Gain ◽  
Ad Libitum

SUMMARYThe paper reports the results of experiments to study the effects of different levels of dietary protein on the performance and carcass quality of bacon pigs fed on a high-energy diet: (a) to make similar rates of live-weight gain on all treatments, (b) to make similar rates of live-weight gain but with the level of protein on some treatments being reduced at 130 lb., (c) to allow ad libitum feed intake on all treatments, (d) to obtain two distinctpatterns of growth (fast-fast and slow-fast) on each of two levels of dietary protein.In the comparison of the two contrasting patterns of growth there was no significant interaction between rate of gain during the period 40–125 lb. live-weight and level of dietary protein. Differences in carcass density and linear measurements were significant and the results suggest that irrespective of growth pattern there was a carcass response to level of protein.Where diets of different protein content were given ad libitum or to obtain a uniform growth pattern on all treatments, growth rates were generally good, with little difference in feed intake between the treatments within each experiment; variations in level of protein therefore had little effect on growth rate. In some of the comparisons, significant carcass differences were found in terms of density, dissection data and linear measurements; in others only the density differences were significant.The results suggest that with each of the feeding systems a level of about 17% crude protein, associated with 12% fish meal, is more likely than lower levels to give lean bacon carcasses. In the one experiment in which the protein level was reduced at 130 lb. live-weight there was no marked effect on carcass composition.

scholarly journals THE EFFECT OF FEEDING MULTI-NUTRIENT MINI BLOCKS AND PELLETED DIETS ON THE GROWTH OF RABBITS

2021 ◽  
Vol 24 (2) ◽  
pp. 147-149
Author(s):  
W. O. Biobaku ◽  
E. B. Oguntona
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Efficiency ◽  
Crude Protein ◽  
Body Weight Gain ◽  
Basal Diet ◽  
The Body ◽  
Ether Extract ◽  
Crude Fibre ◽  
Effect Of Feeding

The effect of substituting pelleted diets with multinutrient block on the growth of weanling rabbits was studied. The pelleted diets and the multinutrient blocks contained crude protein 23.31% and 24.24%, crude fibre 21.65 and 23.00% ether extract 10.44% and 10.97% respectively. The body weight gain (10.58g/day), feed intake (110,20g/day) and feed efficiency ration (0.58) of rabbits fed multinutrient blocks were non-significantly higher by 8.50%, 10.65% and 10.34% respectively, that those rabbits fed with pelleted basal diet.  

scholarly journals Blend of Essential Oils Supplemented Alone or Combined with Exogenous Amylase Compared with Virginiamycin Supplementation on Finishing Lambs: Performance, Dietary Energetics, Carcass Traits, and Nutrient Digestion

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2390
Author(s):  
Alfredo Estrada-Angulo ◽  
Yesica J. Arteaga-Wences ◽  
Beatriz I. Castro-Pérez ◽  
Jesús D. Urías-Estrada ◽  
Soila Gaxiola-Camacho ◽  
...  
Keyword(s):  
Weight Gain ◽  
Essential Oils ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Treatment Effects ◽  
Relative Weight ◽  
High Energy ◽  
Energy Utilization ◽  
Dry Matter Intake

Two experiments were conducted to compare a supplemental blend of essential oils alone (EO) or combined with enzymes (EO + ENZ) versus virginiamycin (VM), on characteristics of growth performance (Exp. 1) and digestion (Exp. 2) in finishing lambs. Lambs were fed a high-energy finishing diet supplemented with: (1) no supplement (control); (2) 150 mg supplemental EO; (3) 150 mg supplemental EO plus 560 mg alpha-amylase (EO + ENZ); and 4) 25 mg VM. Compared with the control, growth performance response to EO and VM were similar, enhancing (5.7%, p < 0.05) feed efficiency and observed dietary net energy. Compared with control, supplementation with EO + ENZ tended (p = 0.09) to increase dry matter intake (6.8%), improving (p < 0.05) weight gain and feed efficiency (10.4 and 4.4%, respectively). Dietary energy utilization was greater (2.7%, p < 0.05) for EO and VM than EO + ENZ. Treatment effects on the carcass and visceral mass were small, but additive supplementation decreased (p ≤ 0.03) the relative weight of the intestines. There were no treatment effects on measures of digestion nor digestible energy of the diet. Supplemental EO may be an effective alternative to VM in high-energy finishing diets for feedlot lambs. Combination EO + ENZ may further enhance dry matter intake, promoting increased weight gain.

scholarly journals Schlachtkörperzusammensetzung und Gewebebeschaffenheit von schweren Schweinen – I. Mitteilung: Material und Methoden, Mastleistung, Schlachtkörperzusammensetzung und Teilstückanteile

2006 ◽  
Vol 49 (3) ◽  
pp. 269-278 ◽  
Author(s):  
K. Fischer ◽  
J. P. Lindner ◽  
M. Judas ◽  
R. Höreth
Keyword(s):  
Weight Gain ◽  
Feed Efficiency ◽  
Relative Weight ◽  
Live Weight ◽  
Carcass Composition ◽  
Weight Class ◽  
Lower Weight ◽  
Meat Content ◽  
Daily Gain

Abstract. Title of the paper: Carcass and meat quality of heavy pigs. I. Experimental design, methods, fattening performance, carcass composition and proportion of cuts The aim of the 1st part of the study was to present the shifts concerning carcass composition and proportion of cuts associated with a prolonged fattening. In total 63 male castrates and 60 females (Piétrain-NN *German Landrace) were randomized to three groups with different live weights at slaughter (110, 135, 160 kg). The increase of live weight to 135 and 160 kg, respectively, took on average 28 and 55 days. Compared with the lower weight class (110 kg) the daily gain calculated with respect to the whole fattening period decreased only by 30 g/d. The feed efficiency, however, increased from 2.7 to 3.1 kg feed / kg weight gain. The M. longissimus area of castrates and gilts, respectively, rose from 53 to 68 cm2 and from 58 to 73 cm2, respectively, while the lean meat content decreased from 57 to 54 % and from 61 to 57 %, respectively. The weight gain of the loin and the neck amounted absolute to 2.4 and 1.3 kg, respectively. The relative weight gain of the backfat and those cuts rich in adipose tissue (e.g. chump, ventral parts of the belly), amounted to 84 % and 60–70 %, respectively, whereas the primal cuts with a high lean content (ham, loin, shoulder, neck) gained only by 40 to 45 %.

The effect of feeding at 3, 6 or 12 hourly intervals on the performance and carcass composition of growing-finishing pigs

1970 ◽  
Vol 75 (2) ◽  
pp. 241-244 ◽  
Author(s):  
N. Walker
Keyword(s):  
Feed Efficiency ◽  
Live Weight ◽  
Carcass Composition ◽  
Backfat Thickness ◽  
Finishing Pigs ◽  
Effect Of Treatment ◽  
Daily Gain ◽  
Effect Of Feeding

SUMMARYPigs were fed either at 3, 6 or 12 hourly intervals to a scale based on live weight from 21 kg to slaughter at 79 kg live weight. There was no effect of treatment on daily gain, feed efficiency or killing out percentage. Backfat thickness at C and K was increased by four times-a-day feeding compared with feeding twice or eight times/day, but this increase in fatness was not confirmed by sample joint dissection.

Whole canola/pea and whole canola/canola meal blends in diets for broiler chickens 1. Evaluation of steam-pelleting or expansion processing

1997 ◽  
Vol 77 (2) ◽  
pp. 185-190
Author(s):  
Y. O. Fasina ◽  
G. L. Campbell ◽  
R. T. Tyler
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Efficiency ◽  
Activity Index ◽  
Body Weight Gain ◽  
Protein Solubility ◽  
High Energy ◽  
Canola Meal ◽  
Glucosinolate Content ◽  
Broiler Chicks

Whole canola blended with whole peas (1:1; WCP) or canola meal (3:1; WCC) provide complementary high energy-protein supplements for poultry feeding. Both WPC and WCC blends were fed with or without processing (steam-pelleting or expansion) to broiler chicks in a 14-d feeding trial. Pelleted WCP supported higher body weight gain and feed efficiency than the untreated blend (P < 0.05). Body weight gain and feed efficiency obtained with chicks fed pelleted WCP or WCC were similar to those obtained for the expanded blends (P > 0.05), with notable exception of the expanded WCC which had a lower feeding value. With the pelleted or expanded blends, protein digestibility, N-retention, fat digestibility, and AMEN were comparable or improved over the unprocessed blends, again with the exception of the expanded WCC. The processed blends had higher gelatinized starch, and lower protein solubility and myrosinase activity index. Protein solubility was very low for the expanded WCC, which is indicative of excessive heat damage. Although the expanded blends had lower glucosinolate content, this did not result in improved growth performance over the pelleted blends. It was concluded that the nutritional value of pelleted blends were at least equivalent to that of the expanded WCP and WCC for broiler chicks. Key words: Canola, peas, broiler chicks, expansion, pelleting

ENERGY UTILIZATION IN THE CHICK IN RELATION TO CERTAIN ENVIRONMENTAL STRESSES

1970 ◽  
Vol 50 (2) ◽  
pp. 285-292 ◽  
Author(s):  
K. Y. LEI ◽  
S. J. SLINGER
Keyword(s):  
Weight Gain ◽  
Feed Efficiency ◽  
High Energy ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Energy Utilization ◽  
Feed Consumption ◽  
Water Restriction ◽  
High Energy Regime ◽  
Environmental Temperatures

Reductions in weight gain, feed consumption and feed efficiency resulted under the stress of water restriction or high population density. The metabolizable energy (ME) content of the feed was unaffected by the severity of the stresses. Elevated and depressed environmental temperatures resulted in reductions in weight gain and feed efficiency, but there were no alterations in the ME content of the feeds. Water restriction decreased the sucrase activity, but not the maltase activity in the intestinal mucosa. Overcrowding had no effect on the level of these mucosal enzymes. At adverse temperatures mucosal sucrase and maltase activities were significantly higher for birds on a low energy than for those on a high energy diet. On the low energy, but not the high energy regime, the sucrase and maltase activities were increased at the elevated and depressed environmental temperatures.

1476 Endocannabinoid concentrations in plasma associated with feed efficiency and carcass composition on crossbreed steers

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 716-717
Author(s):  
V. M. Artegoitia ◽  
A. P. Foote ◽  
R. M. Lewis ◽  
D. A. King ◽  
S. D. Shackelford ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Carcass Composition
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