Net Energy of Fat and Molasses for Beef Heifers with Observations on the Method for Net Energy Determination

Gp, Lofgreen

doi:10.2527/jas1965.242480x

Cited by 33 publications

(13 citation statements)

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“…The fat sources, SOB or CSB at 3 and 5 % of EE in the diet, did not affect (P ≥ 0.05) the final BW and the daily gain (Table 2; C1 and C2, respectively), which is in agreement with Lofgreen (1965) that studied cattle fed residual oil from restaurants and cottonseed, with Zinn (1989a) who compared combinations of restaurant waste oil, animal fat and vegetable in the diet of feedlot cattle, with Cranston et al (2006) who provided the feedlot cattle diets with cottonseed and cottonseed by-products, and all studies did not find difference in beef cattle weight gain. In addition, this finding was similar to that of Stelzleni et al (2013), who found no change in performance and DM intake in heifers supplemented with full-fat extruded cottonseed pellets.…”

Section: Performancesupporting

confidence: 78%

Animal Performance, Feeding Behaviour and Carcass Traits of Feedlot Cattle Diet Fed With Agro-Industrial By-Product as Fat Source

Neto¹,

Roça²,

Branco

et al. 2014

JAS

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In feedlot system is particularly important to reduce the cattle feeding cost without impact on the animal gain and carcass, in this sense, aimed with this study to evaluate animal performance and carcass traits of the young Nellore male (n = 40) finished with agro-industrial by-products in feedlot diet. The addition of cottonseed by-product (CSB) was based on the ether extract (EE) contents in the feedlot diet: 3, 4 and 5%; and two other reference treatments were also tested, with 3 and 5% of EE content and soybean by-product (SOB) as fat source, totalling five experimental diets. In diets with 3% EE, CSB did not alter performance, gain cost or carcass traits compared to the SOB. In diets with 5% EE, animals fed with CSB showed greater dry matter (DM) intake than animals fed with SOB (10.34 versus 8.94 kg/day), but because CSB is a cheaper ingredient than SOB, it reduced the gain cost from 1.60 to 1.35 US$/kg. The CBS used in diet with 3, 4 and 5% EE increased the daily gain (1.17, 1.38 and 1.50 kg/day) and the rumination time (225, 338 and 370 min/day, respectively). So, CSB does not change the carcass traits nor the feeding behaviour when compared to SOB. The increased of CSB concentration in the diet raised the daily gain, DM intake and rumination time, with no changes in carcass traits.

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Section: Performancesupporting

confidence: 78%

Animal Performance, Feeding Behaviour and Carcass Traits of Feedlot Cattle Diet Fed With Agro-Industrial By-Product as Fat Source

Neto¹,

Roça²,

Branco

et al. 2014

JAS

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“…Forage quality was high, as (Table 2). In contrast, high levels of fat (e.g., 2 to 15% of the diet) in other experiments have decreased ADG by ruminants (Brethour et al, 1958;Lofgreen, 1965;Dinius et al, 1975). However, sources of fat high in unsaturated fatty acids were used in most instances.…”

Section: Methodsmentioning

confidence: 81%

Effects of supplementing growing steers with high levels of partially hydrogenated tallow on feed intake, digestibility, live weight gain, and carcass characteristics

et al. 1993

Journal of Animal Science

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Effects of supplementing growing steers consuming forage-based diets with high levels of partially hydrogenated tallow on feed intake, digestibility, live weight gain, and carcass characteristics were determined in this study. In Exp. 1, Holstein steer calves were fed bermudagrass hay alone (Control) and with a ground corn-based concentrate at .95% BW (DM basis) plus partially hydrogenated tallow at 0 (Basal), .33 (low fat; LF), or .67% BW (high fat; HF) in a Latin square. Total DMI was increased by concentrate supplementation and was lower for HF than for LF (P < .05; 3.18, 3.83, 4.25, and 3.17 kg/d for Control, Basal, LF, and HF, respectively). In Exp. 2, grazing Angus x Hereford steers (270 kg +/- .4 initial shrunk BW) were fed the same supplements as in Exp. 1 for 84 or 98 d and slaughtered. Live weight gain was increased (P < .05) by concentrate supplementation (1.01, 1.34, 1.41, and 1.30 kg/d for Control, Basal, Low, and High, respectively). The concentration of total lipids in longissimus muscle was 2.51, 2.53, 3.05, and 3.03% of wet tissue for Control, Basal, LF, and HF, respectively (Basal > the mean of LF and HF; P < .07); the proportion of palmitic acid in total fatty acids was similar among treatments. Fat supplementation did not markedly affect sensory, taste, or tenderness characteristics of longissimus muscle. In conclusion, supplementing grazing beef steers with high levels of partially hydrogenated tallow, with slaughter at approximately 400-kg shrunk BW, tended to increase fat in longissimus muscle without altering the palmitic acid level in fatty acids, although sensory, taste, and tenderness characteristics were not modified.

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“…These workers used the comparative slaughter technique or difference trial to determine the amount of gain produced by a feed. (Garrett, Meyer and Lofgreen, 1959;Lofgreen and Otagaki, 196O;Lofgreen, Bath and Young^ 1962a;Lofgreen and Christensen, 1962;Lofgreen, Hull and Otagaki, 1962"b;Lofgreen, Bath and Strong, I965;Garrett, T,ofgreen and Meyer, 1964;Lofgreen, 1965 Using 32 pigs from two breeds, Sharma and Young (1970) reported that to maintain the pigs in energy equilibri^am, 109 to 112 and I56 to 159 kcal ME/kg'"^ had to be supplied to the Lacombe and Yorkshire breeds, respectively. The efficiency of utilizing the ME for tissue deposition was 62^…”

Section: The Energy Systemmentioning

confidence: 99%

Evaluation of the energy value of feed ingredients for young swine

Goey

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Net Energy of Fat and Molasses for Beef Heifers with Observations on the Method for Net Energy Determination

Cited by 33 publications

References 0 publications

Animal Performance, Feeding Behaviour and Carcass Traits of Feedlot Cattle Diet Fed With Agro-Industrial By-Product as Fat Source

Animal Performance, Feeding Behaviour and Carcass Traits of Feedlot Cattle Diet Fed With Agro-Industrial By-Product as Fat Source

Effects of supplementing growing steers with high levels of partially hydrogenated tallow on feed intake, digestibility, live weight gain, and carcass characteristics

Evaluation of the energy value of feed ingredients for young swine

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