scholarly journals Effects of Moisture and a Saponin-based Surfactant during Barley Processing on Growth Performance and Carcass Quality of Feedlot Steers and on In vitro Ruminal Fermentation

2011 ◽  
Vol 24 (12) ◽  
pp. 1690-1698 ◽  
Author(s):  
Y. Wang ◽  
D. Gibb ◽  
D. Greer ◽  
T. A. McAllister
Keyword(s):  
Growth Performance ◽  
Carcass Quality ◽  
Ruminal Fermentation ◽  
Feedlot Steers

Impact of a mixed culture of Lactobacillus casei and L. lactis on in vitro ruminal fermentation and the growth of feedlot steers fed barley-based diets

2009 ◽  
Vol 89 (2) ◽  
pp. 263-271 ◽  
Author(s):  
J. Baah ◽  
Y. Wang ◽  
T A McAllister
Keyword(s):  
Growth Performance ◽  
Mixed Culture ◽  
Lactobacillus Casei ◽  
Carcass Characteristics ◽  
Barley Grain ◽  
Feedlot Cattle ◽  
Ruminal Fermentation ◽  
Feedlot Steers ◽  
Barley Silage

The effect of a direct-fed microbial (DFM) poduct containing a mixed culture of Lactobacillus casei and L. lactis on in vitro ruminal fermentation of barley-grain/barley-silage-based backgrounding and finishing diets and on growth performance and carcass characteristics of feedlot cattle was evaluated during backgrounding (84 d) and finishing (140 d) of 100 Hereford × Angus steers (initial body weight = 280 ± 15.5 kg). The inclusion rates of DFM in the in vitro study were 4, 8, 12 and 16 million colony forming units (CFU) of lactic acid bacteria (LAB) kg-1 DM of substrate. Total in vitro volatile fatty acids (VFA) production increased at 6 and 12 h of incubation (P < 0.01; linear response) when the backgrounding diet was supplemented with DFM. Dry matter digestibility and VFA production also increased (P < 0.05) during a 12-h fermentation of the finishing diet. Steers were randomly allocated to one of four dietary treatments that comprised feeding DFM tp provide 0 (control), 4 × 107, 8 × 107, or 12 × 107 CFU kg-1 diet DM. Average daily gain (ADG, kg) and feed efficiency (G:F; kg gain kg-1 DM consumed) of steers improved (P = 0.002 and 0.001, respectively) as a result of feeding DFM during the backgrounding period, but not during the finishing period. Saleable meat and rib eye area decreased (P = 0.038, linear; and P = 0.041, quadratic) with DFM supplementation. The results indicated that supplementing barley-grain/barley-silage-based feedlot cattle diets with 12 × 107 CFU of the mixed culture of lactobacilli used in these studies could improve ruminal fermentation, ADG and G:F in backgrounding feedlot steers. However, supplementation during the finishing period may not be warranted in terms of growth performance and carcass characteristics. Differences in the microbial ecology of the intestinal tract as a result of differences in diet composition may account for the varied response between the backgrounding and finishing periods.Key words: Beef cattle, direct-fed microbial, growth performance, Lactobacillus casei, Lactobacillus lactis, ruminal fermentation

scholarly journals Performance and carcass evaluation of balami rams finished on diets with varying energy level

2020 ◽  
Vol 44 (2) ◽  
pp. 223-229
Author(s):  
S. B. Akinleye ◽  
A. B. Omojola ◽  
U. A. Offong ◽  
K. D. Afolabi ◽  
J. S. Luka
Keyword(s):  
Growth Performance ◽  
Energy Levels ◽  
Descriptive Statistics ◽  
Farm Animals ◽  
Daily Weight Gain ◽  
Carcass Quality ◽  
Dietary Energy ◽  
Genetic Status ◽  
Study Performance

Fattening of farm animals is a way of increasing the rate of meat deposit after maturity. Its effectiveness depends on genetic status of the animal and the diet fed to the animal. In this study, performance and carcass evaluation of balami rams finished on diets with varying energy levels were carried. Forty-eight rams of Balami breed, weighing 20.75±1.50- 22.50±1.91kg were randomly alloted to four dietary energy levels (EL): 2.20Mcal/kg (EL ), I 2.40 Mcal/kg ((EL ), 2.60 Mcal/kg ((EL ) and 2.80 Mcal/kg ((EL ) for 90 days. The feed II III IV intake and daily weight gain of the animals in each treatment were determined and the average recorded. Three Balami rams were randomly selected from each treatment and sacrificed to determine the dressing percentage (DP), carcass weight (CW), fat deposit (FD) and meat yield (MY). Data were analysed using descriptive statistics and ANOVA at á . The 0.05 FBW (kg) of Balami rams in group EL , EL , EL and EL were 41.88.6±1.97, 42.12±1.84, I II III IV 46.13±1.65 and 52.24±2.50 while the FCR of animals on treatments EL (5.3±0.28) and EL I II (5.2±0.26) were higher than EL (4.7±0.82) and EL (4.0±0.65). The DP (%) were 54.9, III IV 54.9, 55.8 and 56.1, the FD (%) were 9.00,9.59,8.92 and 11.46 and the MY (%) were 75.2, 74.7, 75.5 and 72.0 for rams on EL , EL , EL and EL The results indicate that, increasing I II III IV. levels of energy improved growth performance and carcass quality of Balami rams. Therefore, higher level of dietary energy (2.80 Mcal/kgDM and 14% CP) could be suggested for optimizing growth performance and meat quality of Balami ram under fattening condition.

scholarly journals Pengaruh Inokulasi Lactobacillus plantarum dan Saccharomyces cerevisiae terhadap Fermentasi dan Kecernaan In Vitro Silase Kulit Buah Kakao

2016 ◽  
Vol 40 (2) ◽  
pp. 124
Author(s):  
Muhammad Askari Zakariah ◽  
Ristianto Utomo ◽  
Zaenal Bachruddin
Keyword(s):  
Mixed Culture ◽  
Dry Matter ◽  
Degradation Rate ◽  
In Vitro Digestibility ◽  
Ruminal Fermentation ◽  
Rumen Ph ◽  
Range Test ◽  
Fibre Fraction

The objective of this study was to identify the effect of L. plantarum and S. cerevisiae mixed culture inoculation into cocoa pods silage on chemical composition and in vitro digestibility. The four treatments were: 1 kg freshly harvested cocoa pods without inoculants as control (K); K + L. plantarum (KLp); K + S. cerevisiae (KSc); and K + L. plantarum and S. cerevisiae mixture (KLp+Sc) 0.1% dry matter, Cassava meal were added in all treatments. Each treatment was replicated 3 times, and then fermented for 21 days. Parameters observed in current study were gas test production, ruminal fermentation parameter, and in vitro digestibility. The collected data were analyzed by one-way analysis of variance and followed by Duncan’s new Multiple Range Test for data with significant differences. Result showed that the mixed culture Lp+Sc inoculation increased (P<0.05) chemical quality of cocoa pods by reducing fibre fraction and increase NFE contents, increased degradation rate, degradation theory, reduced rumen pH, and propionate acid production, without affecting acetate to propionate ratio, microbial protein synthesis, and digestibility of cocoa pod silage.

scholarly journals Effects of yeast combined with chromium propionate on growth performance and carcass quality of finishing steers1

2016 ◽  
Vol 94 (7) ◽  
pp. 3003-3011 ◽  
Author(s):  
C. L. Van Bibber-Krueger ◽  
J. E. Axman ◽  
J. M. Gonzalez ◽  
C. I. Vahl ◽  
J. S. Drouillard
Keyword(s):  
Growth Performance ◽  
Carcass Quality ◽  
Chromium Propionate

Eating quality evaluation of meat from the crossbred lamb progeny of three terminal sire breeds

1992 ◽  
Vol 1992 ◽  
pp. 177-177
Author(s):  
M. Ellis ◽  
G.M. Webster ◽  
I. Brown ◽  
B.G. Merrell
Keyword(s):  
Growth Performance ◽  
Quality Evaluation ◽  
Eating Quality ◽  
Consumer Acceptability ◽  
Carcass Quality ◽  
Terminal Sire

Consumer acceptability of lamb is ultimately determined by the eating quality of the meat. This paper reports on the eating quality evaluation of lean samples obtained from carcasses of crossbred lambs sired by Suffolk, Texel and Charollais rams.The lambs used in this study were part of a larger experiment to compare the growth performance and carcass quality of lambs sired by rams of the Suffolk, Texel and Charollais breeds (Merrell, Webster and Ellis, 1990: BSAP Occasional Publication No. 14, pp. 169-172).An upland flock of approximately 350 Mule (Bluefaced Leicester ♂ x Scottish Blackface ♀) was used to produce the lambs. Eight unrelated rams of each of the three sire breeds were mated to the ewes over two years (4 rams per breed per year). Their crossbred progeny were selected for slaughter when it was estimated that they would produce carcasses of Meat and Livestock Commission fat class 2 to 3L. All lambs had been multiple-born and reared as twins.

Propionic acid-treated barley in the diets of bacon pigs

1975 ◽  
Vol 21 (3) ◽  
pp. 295-302 ◽  
Author(s):  
D. J. A. Cole ◽  
P. H. Brooks ◽  
P. R. English ◽  
R. M. Livingstone ◽  
J. R. Luscombe
Keyword(s):  
Moisture Content ◽  
Growth Performance ◽  
Propionic Acid ◽  
Significant Interaction ◽  
Feed Utilization ◽  
Carcass Quality ◽  
Linear Measurements ◽  
Moisture Contents ◽  
Significant Difference

SUMMARYGrowth performance and carcass quality (linear measurements) were studied in pigs grown from 25 to 90 kg on barley stored and prepared in different ways. Half the barley was dried to about 14% moisture content for storage and half was not dried but treated with 0·8% propionic acid. Each was given after hammer-milling (3·2 mm screen) or rolling. A total of 144 pigs was used at four centres.The performance and carcass quality of pigs given acid-treated barley were as good as those given dried barley. While feed utilization, expressed on the basis of air-dry feed, was poorer for pigs fed on acid-treated barley this difference disappeared when account was taken of the different moisture contents of the barley samples. Pigs fed on diets based on milled barley grew more quickly, had better feed utilization but greater fat measurements than pigs fed on rolled barley. There was a significant interaction between storage method and feed preparation (milling or rolling). Pigs given the acid-treated barley grew more quickly when it was in the milled form than when it was rolled, whereas for the dried barley there was a small, non-significant difference in favour of the rolled form.

The effect of 3-methylindole on the quantity and functional quality of lung surfactant

1988 ◽  
Vol 66 (7) ◽  
pp. 895-900 ◽  
Author(s):  
James B. Kirkland ◽  
Tammy M. Bray
Keyword(s):  
Lung Surfactant ◽  
Lamellar Body ◽  
Ruminal Fermentation ◽  
Lamellar Bodies ◽  
Air Bubble ◽  
Model Following ◽  
Naturally Occurring ◽  
Functional Quality

Acute bovine pulmonary edema is a naturally occurring lung disease caused by 3-methylindole (3MI), a ruminal fermentation product of tryptophan. Morphological and in vitro studies have suggested that 3MI causes abnormalities in phospholipid synthesis. The present study was designed to investigate the effect of 3MI on the quantity and functional quality of surfactant using the goat as an experimental model. Following intravenous infusion of 3MI, goats were killed at 6-, 18-, and 30-h intervals. The lungs were removed and intracellular surfactant, in the form of lamellar bodies, and extracellular surfactant from alveolar lavage were quantified. 3MI treatment did cause modest changes in the lamellar body phospholipid pools, decreasing the quantity of phosphatidylcholine and the proportion of palmitate in this fraction. The quantity of lavage phospholipids was not significantly affected. There was an increase in the protein content of the lavage, reflecting the presence of edema. The functional quality of the surfactant isolated from the lavage fraction was tested in vitro using a pulsating bubble surfactometer. 3MI infusion decreased the ability of surfactant to lower the surface tension of an air bubble at maximum radius and during compression.

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