scholarly journals The Effect of the Level and Source of Dietary Fat on the Growth, Feed Efficiency, Grade and Carcass Composition of Turkeys

1971 ◽  
Vol 50 (5) ◽  
pp. 1456-1467 ◽  
Author(s):  
R.E. Salmon ◽  
J.B. O’Neil
1994 ◽  
Vol 73 (9) ◽  
pp. 1362-1369 ◽  
Author(s):  
MICKEY A. LATOUR ◽  
E. DAVID PEEBLES ◽  
CAROLYN R. BOYLE ◽  
J.D. BRAKE

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 ◽  
...  

2017 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
V. M. Artegoitia ◽  
A. P. Foote ◽  
R. G. Tait ◽  
L. A. Kuehn ◽  
R. M. Lewis ◽  
...  

2016 ◽  
Vol 94 (7) ◽  
pp. 2851-2866 ◽  
Author(s):  
E. W. Stephenson ◽  
M. A. Vaughn ◽  
D. D. Burnett ◽  
C. B. Paulk ◽  
M. D. Tokach ◽  
...  

2019 ◽  
Vol 4 (1) ◽  
pp. 159-169
Author(s):  
Jonathan C DeClerck ◽  
Nathan R Reeves ◽  
Mark F Miller ◽  
Bradley J Johnson ◽  
Gary A Ducharme ◽  
...  

Abstract One hundred forty-four cull cows (body condition score = 2.10 ± 0.61; BW = 456 ± 47 kg) were organized into a 2 × 2 factorial design (48 pens, 12 pens/treatment, and 3 cows/pen) to evaluate the effect of dietary roughage level and oral drenching of Megasphaera elsdenii NCIMB 41125 (M. elsdenii culture; Lactipro Advance; MS Biotec Inc., Wamego, KS) on performance and carcass characteristics. Cattle were finished over a 42-day realimentation period, and aggressively stepped up over a 10-day period to either a high roughage finisher (HRF; 25% roughage) or a low roughage finisher (LRF; 10% roughage). Within diet, cattle were administered no probiotic or 100 mL of M. elsdenii culture (M. elsdenii NCIMB 41125, 2 108 cfu/mL) on day 0. No diet × probiotic interactions were detected (P ≥ 0.15), suggesting that the magnitude of the response was not influenced by the concentrate level of the diet. The main effect of diet triggered several significant responses. Decreasing roughage level tended to improve average daily gain (ADG) by 9.7% (0.26 kg, P = 0.08), while decreasing dry matter intake (DMI) by 0.9 kg (P = 0.09), provoking a 19.7% enhancement of feed efficiency (0.036 units, P < 0.01). However, interim data revealed declines of performance parameters among both diets with a significant difference between treatments only documented during the final phase of the realimentation period. During the final 14 days, LRF posted a 0.68 kg increase in ADG (P = 0.05) and a 2.0 kg decrease in DMI (P = 0.01), translating to improved feed efficiency (0.054 units, P = 0.03). This suggests that increasing the caloric density of finishing diets may help offset the regression of performance typically observed following a compensatory gain. No carcass traits were impacted by either diet or M. elsdenii culture (P ≥ 0.08). Overall, oral drenching of M. elsdenii culture tended to augment ADG (0.26 kg, P = 0.08) and carcass ADG (0.20 kg, P = 0.10). Implying that M. elsdenii culture was effective at alleviating the acidosis risk prompted by the rapid step-up period employed in the trial and may help capitalize on the narrow timeline of compensatory gain in cull cow realimentation.


1984 ◽  
Vol 64 (4) ◽  
pp. 1063-1066
Author(s):  
A. G. CASTELL

Increasing the level of wheat screenings (95% green foxtail seeds) from 0 to 25% in diets fed ad libitum over the period from 34 to 89 kg liveweight resulted in an increased daily feed intake (P < 0.05), reduced (P < 0.05) feed efficiency and apparent digestibility, but produced no consistent effects on growth rate or carcass composition. Key words: Growing pigs, green foxtail, Setaria viridis, carcass, digestibility


2016 ◽  
Vol 94 (12) ◽  
pp. 5177-5181 ◽  
Author(s):  
V. M. Artegoitia ◽  
A. P. Foote ◽  
R.M. Lewis ◽  
D. A. King ◽  
S. D. Shackelford ◽  
...  

1971 ◽  
Vol 77 (2) ◽  
pp. 313-315 ◽  
Author(s):  
M. A. Price ◽  
N. T. M. Yeates

SummaryThe feed conversion efficiency of four intensively fed, partially castrated male cattle, measured over an 11-week period from approximately 9-months of age, was found to be significantly higher (P <0·05) than that of four steers.The effect of adding 5% beef tallow to the diet during this period was also studied. Although no statistically significant result of this on feed conversion was obtained, there was an indication that fat in the diet improved the bulls' efficiency, but not that of the steers. Added dietary fat had an effect on carcass composition, increasing signifioantly (P < 0·05) the deposition of carcass fat by steers but having no such effect in bulls. It appears, therefore, that the two sex types metabolized the added dietary fat differently, the steers converting much of it to depot fat; the bulls using it (with some evidenoe of greater efficiency) for growth of non-adipose carcass components.


2010 ◽  
Vol 3 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Ashraf El-Dakar ◽  
Gaber Hassanen ◽  
Shymaa Shalaby ◽  
Samir Ghoniem ◽  
Osama Zenhom

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