scholarly journals 343 Feedlot performance and carcass characteristics of steers fed diets containing steam-flaked grain and corn silage from Enogen® Feed Corn

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 137-137 ◽  
Author(s):  
Adrian Baker ◽  
Vanessa de Aguiar Veloso ◽  
Adrian Baker ◽  
Lucas Barros

Abstract Enogen Feed Corn (EFC; Syngenta Seeds, LLC) is genetically modified to express high concentrations of amylase. Our objective was to evaluate EFC as corn silage and as steam-flaked corn in diets fed to finishing cattle. A 2 x 2 factorial experiment was conducted with steers (n = 960; 388 ± 7.4 kg initial body weight), with factors consisting of silage source (Control or EFC) and grain source (Control or Enogen). Steers were blocked by initial body weight, assigned randomly within block to treatments, housed in 48 pens with 15 or 25 cattle per pen, and harvested after 138, 152, or 166 days on feed. Grains were steam flaked to densities of 360 or 386 g/L for Control and EFC, respectively. Diets (dry basis) consisted of 8% corn silage, 2% alfalfa hay, 74.5% flaked corn, 12% Sweet Bran, and supplement. Incidences of liver abscesses and carcass weights were recorded at harvest, and longissimus muscle area, 12th-rib subcutaneous fat thickness, marbling score, and USDA yield and quality grades were determined after 36 h of refrigeration. There were no interactions between grain source and silage source (P > 0.05) for feedlot performance. Cattle fed diets containing EFC silage consumed less dry matter (P < 0.01) and efficiency of gain was improved by approximately 5.3% (P < 0.01) compared to cattle fed Control silage. Average daily gain and dry matter intake were unaffected by grain source, but cattle fed EFC grain were less efficient (P = 0.02) compared to cattle fed control grain. Carcass weight was greater for cattle fed the combination of EFC silage and Control grain compared to other treatments (P < 0.05), but liver abscess incidence and other carcass measurements were unaffected by grain or silage source. Feeding Enogen Feed Corn as corn silage, but not as grain, improved feedlot performance of steers. Keywords: Enogen, corn silage, amylase

2016 ◽  
Vol 10 (3) ◽  
pp. 216
Author(s):  
Dinnara Layza Souza da Silva ◽  
Alexandre Paula Braga ◽  
Dorgival Morais de Lima Júnior ◽  
Wirton Peixoto Costa ◽  
Antônia Vilma Ferreira Amâncio ◽  
...  

This study aimed to evaluate the inclusion sunflower cake (Hellianthus annuus L.) in diets of feedlot sheep. It was used 20 crossbred Santa Inês lambs, intact males, initial body weight of 17 ± 1.4 kg and 120 days of age were confined for 70 days. The diets were constituted by grass hay, grain ground corn, soybean meal, mineral salt and increasing inclusions of sunflower cake (0, 15, 30 and 45%). At the end of the feedlot period, the animals were slaughtered. The average daily gain and body weight were not affected (P> 0.05) by the inclusion of sunflower cake. However, the dry matter intake was a linear increase (P


2007 ◽  
Vol 87 (4) ◽  
pp. 615-621 ◽  
Author(s):  
K. C. Swanson ◽  
M. Ko ◽  
C. J. Mader

This experiment was conducted to evaluate the effects of corn or soybean hull incorporation into haylage-based diets on backgrounding calf performance and subsequent feedlot performance. Crossbred steers [n = 48, initial body weight (BW) = 303 ± 3.4 kg] were individually fed dietary treatments consisting of: (1) haylage [17.5% crude protein, dry matter (DM) basis; control], (2) haylage + 20% (DM basis) cracked corn, and (3) haylage + 20% (DM basis) soybean hulls during a 112-d backgrounding period. After the backgrounding period, all steers were adapted to a common high moisture corn-based finishing diet and fed until an ultrasound estimated backfat thickness of 7 mm was obtained. During the backgrounding period, steers fed cracked corn or soybean hulls had greater (P < 0.01) average daily gain, dry matter intake and gain:feed and lower (P = 0.05) plasma urea N as compared with controls. However, when finished on a common high-concentrate diet, steers previously fed cracked corn had greater (P < 0.08) average daily gain, final body weight, and longissimus muscle area than those fed soybean hulls, suggesting that source of supplemental energy during the backgrounding period may influence subsequent feedlot performance. Key words: Beef cattle, backgrounding, energy supplementation


2018 ◽  
Vol 39 (4) ◽  
pp. 1627
Author(s):  
André Felipe Borges Krinchev ◽  
Valter Harry Bumbieris Junior ◽  
José Renato Silva Gonçalves ◽  
Laísse Garcia Lima ◽  
Ana Maria Bridi ◽  
...  

The objective of this study was to evaluate the effect of Brachiaria spp. Cv. Mulato II (Convert) on performance, meat quality and carcass characteristics of castrated Nellore steers in the growing and finishing phases, in rotational grazing system, compared to Brachiaria brizantha cv. Marandu, under the same conditions. The experimental area was divided into two treatments: Marandu and Convert with 20 hectares each, splited in four replications per treatment, composed of five paddocks of one hectare each. Animals were managed based on the availability of leaf blade dry matter (6.19% body weight) in rotational grazing with 7 days of occupation and 28 days of rest. Ten animals were used in each replicate (testers), as well as regulatory animals whenever necessary. Animals were managed based on the availability of leaf blade dry matter (6.19% body weight) in rotational grazing with 7 days of occupation and 28 days of rest. Ten animals were used in each replicate (testers), as well as regulatory animals whenever necessary. For performance analysis, 10 animals of each replicate were used, while for carcass and meat analyses, only six of each replicate. Production and chemial characteristics of the two grasses were evaluated. The experimental design was completely randomized with two treatments and four replicates; data were tested by analysis of variance using the R software. Animals fed on Convert grass were superior than those fed on Marandu grass, with higher average daily gain (0.682 kg vs. 0.605 kg), slaughter weight (470.45 kg vs. 451.43 kg), hot carcass weight (239.93 kg vs. 232.36 kg). The study also showed the possibility of finishing castrated young steers (up to 30 months) and with subcutaneous fat thickness required by industry (3 mm) in both pastures.


2018 ◽  
Vol 41 (1) ◽  
pp. 42553 ◽  
Author(s):  
Michel Do Vale Maciel ◽  
Francisco Fernando Ramos de Carvalho ◽  
Ângela Maria Vieira Batista ◽  
Evaristo Jorge Oliveira de Souza ◽  
Laura Priscila Araújo Amaro Maciel ◽  
...  

 The aim of this study was to evaluate the replacement of Tifton 85 hay (Cynodon spp.) by maniçoba hay or silage (Manihot glaziovii Muell. Arg) on sheep intake and performance. Twenty-four male Santa Ines animals were used, with initial body weight of 19.77 ± 1.95 kg and average age of 160 days. The animals were distributed in three treatments (Tifton 85 hay-TH, Maniçoba hay-MH and Maniçoba silage-MS), arranged in a randomized blocks design, with 8 replicates per treatment. The feedlot period lasted for 71 days. The means of the variables were tested by Tukey’s test at 5% probability. Sheep fed MH presented higher dry matter intake (p > 0.05) than those fed TH (1.17 kg day-1 vs 1.06 kg day-1). Neutral detergent fiber intake was higher (p > 0.05) for MH-fed sheep (0.394 kg day-1) when compared to MS (0.340 kg day-1). The digestibility of total carbohydrates was higher (p > 0.05) for MH diet (0.71 g kg-1) than TH (0.67 g kg-1). The average daily gain and body weight at slaughter did not differ (p > 0.05) among treatments. Maniçoba hay or silage can replace Tifton 85 hay in sheep diets. 


2000 ◽  
Vol 71 (1) ◽  
pp. 59-64 ◽  
Author(s):  
T. Oikawa ◽  
T. Sanehira ◽  
K. Sato ◽  
Y. Mizoguchi ◽  
H. Yamamoto ◽  
...  

AbstractRestricted maximum likelihood analyses fitting an animal model were conducted to estimate genetic parameters with a pooled-data set of performance tests (growth traits and food intake) on 661 bulls and progeny tests (growth traits and carcass traits) on 535 steers. Traits studied included concentrate intake (CONC), roughage intake (ROU), TDN conversion (TCNV), TDN intake (TINT) of bulls; rib eye area (REA), marbling score (MARB), dressing proportion (DRES) and subcutaneous fat depth (SCF) of steers. Body weight at start (BWS), body weight at finish (BWF) and average daily gain (ADG) of all animals were measured. Estimated heritabilities were 0·18 (CONC), 0·71 (ROU), 0·11 (TCNV) and 0·36 (TINT); 0·02 (REA), 0·49 (MARB), 0·15 (DRES), 0·15 (SCF), and from 0·20 to 0·38 for growth traits. Genetic correlations of ROU were different from those of CONC, probably due to inconsistent restrictions on concentrate intake; those of TINT with the weights, ADG and SCF were high. MARB showed positive genetic correlations with growth traits and low correlations with TINT and SCF. High potentiality for improvement of marbling score was suggested.


2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 138-139
Author(s):  
Hannah C Wilson ◽  
Henry Hilscher ◽  
Zachary E Carlson ◽  
Bradley M Boyd ◽  
Andrea K Watson ◽  
...  

Abstract A feedlot study was conducted comparing a natural feed additive (essential oils blend) at varying silage inclusions on receiving and finishing performance. The study utilized 480 crossbred steers (initial shrunk BW 296 kg ± 7.72 kg) in 48 pens with 10 steers/pen and 8 pens per treatment. Treatments were designed as a 2 × 3 factorial with 3 inclusions of corn silage [14, 47, 80 %; dry matter (DM) basis] with or without (+, -) the inclusion of an essential oils (EO) blend. All treatment diets contained 16% modified distillers grains plus solubles and 4% supplement with dry-rolled corn replacing corn silage (CS) on a DM basis. Steers were fed at 80% CS inclusion and adapted to 47% and 14% CS over a 10 and 24-d period, respectively. Cattle fed 80% CS were fed for 238 days, 47% CS for 195 days, and 14% CS were fed for 168 days to a common backfat of 1.28 cm (P > 0.59). There were no interactions for corn silage inclusion and the inclusion of essential oils on final body weight (FBW), dry matter intake (DMI), average daily gain (ADG), gain to feed ratio (G:F), hot carcass weight (HCW), longissimus muscle (LM) area, marbling, or calculated yield grade (CYG; P > 0.15). There was no significant difference for FBW, DMI, ADG, G:F, HCW, LM area, marbling, or CYG for cattle fed EO or no EO. However, there was a quadratic response for FBW, ADG, G:F, HCW, marbling and CYG with increased inclusion of corn silage (P < 0.04). Feeding corn silage at greater inclusions decreased animal performance but increased final body weight when fed to an equal fatness. Essential oils did not affect animal performance or carcass characteristics. However, feeding greater amounts of corn silage can be an economical way to finish cattle.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 434-434
Author(s):  
Renan Regatieri Casagrande ◽  
Terry Engle ◽  
John Wagner

Abstract Four hundred and thirty-three Angus and Angus cross-bred steers (Body Weight 344 ± 13.3 kg) were utilized in this experiment to compare different varieties of grain corn and α-amylase enzyme on feedlot cattle performance and carcass characteristics. Steers were blocked by body weight and breed and randomly assigned to treatments. Treatments consisted of: 1) Commercial commodity corn (CON); 2) Experimental test corn (TEST;), 3) 50:50 blend of CON and TEST corn sources (BLEND), and 4) CON with 5g of α-amylase enzyme added/hd/d (AMZ; Amaize®, Alltech). Steers were slaughtered after 138 days on feed. Feedlot performance, net energy recovery, hot carcass weight, dressing percentage, subcutaneous adipose tissue depth, longissimus muscle area, marbling score, and calculated yield grade data were analyzed as a randomized complete block design using PROC MIXED of SAS. Dietary treatment had no effect (P &gt; 0.20) on BW, average daily gain, feed efficiency, or net energy recoveries. There was a tendency for daily dry matter intake (DMI) to be influenced by treatment: d 0 – d 90 (P &lt; 0.09), d 91 – slaughter (P = 0.11), and d 0 – slaughter (P &lt; 0.08). Dry matter intake was consistently greater for steers receiving the AMZ treatment when compared to all other treatments. Daily DMI for the TEST treatment was consistently lower than DMI for all other treatments. Hot carcass weight (P = 0.56), dressing percentage (P = 0.10), 12th subcutaneous fat depth (P = 0.88), longissimus muscle area (P = 0.84), yield grade (P = 0.91), marbling score (P = 0.76), quality grade (P = 0.67), and the distribution of USDA yield and quality grades (P &gt; 0.74) were similar across treatments. These results indicate the value of the TEST corn as an energy source in feedlot cattle diets is similar to the value of COM corn an energy source.


2019 ◽  
Vol 3 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Colton R Oney ◽  
Jana K Gramkow ◽  
F Henry Hilscher ◽  
Galen E Erickson ◽  
Jim C MacDonald ◽  
...  

Abstract The amount of rumen undegradable protein (RUP) in corn silage and the extent to which it is digested in the small intestine are uncertain. Three studies were conducted to determine RUP content of corn silage, and the effects of supplementing increasing concentrations of RUP on the growing performance of calves fed a corn silage diet. Experiments 1 and 2 used in situ methods to evaluate the RUP content of corn silage. In experiment 1, corn silages harvested at 37% or 42% dry matter (DM) were compared. In experiment 2, dry-rolled corn (89.4% DM) was reconstituted to 75%, 70%, 65%, and 50% DM and ensiled in mini-silos (2,265 cm3) for 30, 90, 180, or 270 d to simulate the corn grain within corn silage, dry-rolled corn is more mature than corn grain harvested in corn silage. Experiment 3 used 60 steers (275 kg initial body weight, SD = 18) in an 83-d growing study to evaluate the effects of supplementing 0.4%, 1.7%, 3.0%, 4.2%, or 5.5% RUP (% of diet DM) on performance. In experiment 1, RUP as a % of DM was not different between the two corn silages (P ≥ 0.12), averaging 0.59% for samples refluxed in a neutral detergent solution (NDS) and 1.8% for samples not refluxed in NDS. Dry matter digestibility (DMD) also did not differ (P ≥ 0.19), averaging 67.4%. In experiment 2, as moisture content of the corn grain increased, DMD increased linearly (P &lt; 0.01) and RUP content decreased linearly (P &lt; 0.01). The DMD increased quadratically (P = 0.02), whereas RUP content decreased linearly (P &lt; 0.01) as days of ensiling increased. In experiment 3, there were no differences in DM intake (DMI; P ≥ 0.33) among treatments for period 1 (d 1 to 37). However, average daily gain (ADG) and gain-to-feed ratio (G:F) both linearly increased (P &lt; 0.01) as RUP supplement inclusion increased. There were no differences in DMI (P ≥ 0.16), ADG (P ≥ 0.11), or G:F (P ≥ 0.64) in period 2 (d 38 to 83). For the overall growing period (d 1 to 83), a linear increase was observed for ending body weight (P = 0.01), ADG (P &lt; 0.01), and G:F (P &lt; 0.01) as RUP supplement inclusion increased from 0.4% to 5.5% of diet DM. The RUP content of corn silage is lower than previously reported. Data collected suggest the crude protein within corn silage is 13% RUP, and approximately 1/2 is digestible. The moisture content of corn silage at the time of harvest and the amount of time corn silage is stored continually impact protein availability. Supplementing growing calves fed corn silage with RUP will improve performance.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 300-301
Author(s):  
Amanna G Jacaúna ◽  
André M Castilhos ◽  
Caroline L Francisco ◽  
Paulo R L Meirelles ◽  
Lúcia M Zeoula ◽  
...  

Abstract This study evaluated the digestibility and ruminal morphophysiology of water buffaloes finished in feedlot and receiving concentrate diet ad libitum (corn silage, ground corn, cottonseed meal, urea, and premix). Seventy-eight male water buffaloes of different genetic groups (GG; Jafarabadi, Mediterranean, and Murrah; n = 26 animals for each GG; 378.57±42.76 kg of initial body weight - BW) were used. The digestibility evaluation was performed and the feces samples were collected after 84 days, for 13 consecutive days [10 days of data collection for dry matter intake (DMI) calculation, and three days of feces collection]. Samples of the ruminal epithelium were collected for morphological and histological analysis of the ruminal papillae postmortem. There was no effect of the GG for digestibility (P = 0.15). Jafarabadi and Mediterranean showed superior feedlot performance compared to Murrah (P &lt; 0.01) for average daily gain (1.57, 1.60, and 1.29, in kg/day, for Jafarabadi, Mediterranean, and Murrah, respectively; SEM=0.07). In addition, Mediterranean presented higher values for DMI than the other GG (2.14, 2.47, and 2.21, in %BW, for Jafarabadi, Mediterranean, and Murrah, respectively; SEM=0.07). Effect of the GG was verified for the variable epithelium (P &lt; 0.01), for which Murrah obtained higher value than other GG (49.14, 48.99, and 55.46, in µm, for Jafarabadi, Mediterranean, and Murrah, respectively; SEM=4.97). Tendency was detected for papillae width (P = 0.09) for which Mediterranean showed a smaller value compared to Jafarabadi, while Murrah did not differ from both GG (0.338, 0.303, and 0.316, in mm, for Jafarabadi, Mediterranean, and Murrah, respectively; SEM=0.016). The mean number of papillae showed tendency for the GG (PP = 0.09) with the highest value for the Mediterranean (56.48, 66.31, and 58.04, for Jafarabadi, Mediterranean, and Murrah, respectively; SEM=13.88). In conclusion, GG of water buffaloes have some differences in feedlot performance and ruminal traits; however, these characteristics do not affect digestibility. Supported by FAPESP (#2014/05473-7).


Author(s):  
Sujono . ◽  
L. Hendraningsih ◽  
Wehandaka . ◽  
Uswatun . ◽  
B. Raharjo

Research on the use of fermented cacao seed skin waste (FCS) was carried out to determine dry matter, crude protein consumption and daily weight gain of local rams. Fifteen local rams aged 1.5 years with an initial body weight ranging from 14–20 kg were used for analyses. The local rams were grouped according to their initial body weight: K1 = 14–16 kg, K2 = 16–18 kg, K3 = 18–20 kg. Variables measured were dry matter and protein consumption, daily weight gain and feed conversion. The research method used a randomized block design. The treatments involved five levels of fermented cocoa FCS. Data analysis involved ANOVA and Duncan’s test. The results demonstrated a significant effect on dry matter and crude protein consumption (P 0.01) and of daily weight gain (P 0.05) but no significant effect with respect to feed conversion (P 0.05). The highest consumption of dry matter and protein in the P1 treatment and the highest daily weight gain for local rams was obtained in the P3 treatment. Hence, it was concluded that fermented cocoa seeds can replace up to 75% of field grass for sheep feed purposes.


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