scholarly journals PSII-28 Impact of commingling on feedlot steer productivity

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 245-246
Author(s):  
Amanda J Hubbard ◽  
Jason Sawyer ◽  
Reinaldo F Cooke ◽  
Courtney L Daigle

Abstract This study evaluated the impact of commingling two sources of cattle on productivity during the feedlot phase of production. Angus crossbred steers (n = 96), similar in genetic composition and age, from two research stations (n = 48 McG and n = 48 BCS) were transported (833.64 ± 85.29 km) to a feedlot 39-d prior to study commencement. Steers were blocked by source and stratified by d -34 body weight (BW) before being randomly assigned to one of 12 pens (n = 8 steers/pen) for the 42-d study. Pens were assigned to one of two treatments (n = 6 pens/treatment): 1) NOMIX—100% of cattle from either McG (n = 3 pens) or 100% of cattle from BCS (n = 3 pens) and, 2) MIX—50% of cattle from BCS and 50% from McG (n = 6 pens). Body weight was collected on d0, on d24, and at the end of the study on d42. Orthogonal contrasts analyzed effects of commingling (NOMIX vs. MIX) and source (BCS vs. McG) on dry matter intake (DMI), average daily gain (ADG), and gain to feed (G:F). Linear mixed models (PROC MIXED) evaluated impact of source × treatment on ADG. No effects of commingling (P > 0.05) or source (P > 0.05) were detected on DMI (MIX 8.25, BCS 8.70, McG 8.14 kg/steer/day), ADG (MIX: 1.48, BCS: 1.67, McG: 1.59 kg/steer), and G:F (MIX: 0.18, BCS: 0.19, McG: 0.19). There was no effect of source × treatment on ADG (P > 0.05); however, McG-MIX had the smallest ADG (1.42 kg/steer) compared to BCS-MIX, BCS-NOMIX, and McG-MIX (1.61, 1.59, and 1.60 kg/steer, respectively). Source and mixing treatment did not statistically impact productivity or efficiency, however, mixed cattle were numerically less productive than non-mixed cattle, and the impact of mixing on productivity may vary by source.

2013 ◽  
Vol 13 (2) ◽  
pp. 41-46 ◽  
Author(s):  
Yunasri Usman ◽  
Eka Meutia Sari ◽  
Nuzul Fadilla

The evaluation of the Aceh cattle bulls weight which compensated between forage and concentrate at Superior Livestock Place in IndrapuriABSTRACT. This research was conducted at Superior Livestock Place in Indrapuri District, Aceh Besar  which lasted for 42 days. It was started on November 28th 2012 until January 9th 2013. This research was aims to know about the average daily gain for Aceh cattle bulls which compensated between forage and concentrate by using 12 bulls aged 2-2,5 years old. The design was used a Randomized Design Groups with 4 feed treatments and 3 repetitions. The feed percentages between forage and concentrate are ration A (100% forages), B (80%)forages and 20% concentrates), C (60% forages and 40% concentrates), and D (40% forages and 60% concentrates). The research analysis data were obtained by using ANOVA (Analysis of Variance). The parameters which observed in this study was the average daily gain, consumption, conversion, and efficiency rations. The result showed that the ration dry matter intake highly significantly (P0,01) between treatment A (4,45 Kg), and B (3,61 Kg), C (2,72 Kg), and D (3,38 Kg), but the treatment B and D highly significantly than treatment C (P0,01), the best ration consumption were derived from treatment C. The body weight Kg/bull/day significantly (P0,05) between treatment A (0,47 Kg) and B (0,65 Kg), C (0,60 Kg), and D (0,61 Kg), the best average daily gain were derived from treatment B. The conversion ration showed that highly significantly (P0,01) between treatment A (9,55 Kg), and B (5,55 Kg), C (4,60 Kg), and D (5,59 Kg), the best ration conversion were derived treatment C. Similarly, the efficiency ration showed that highly significantly (P0,01) between treatment A (0,11%), and B (0,18%), C (0,22%), and D (0,18%), C is the best ration efficiency on the treatment.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 431-432
Author(s):  
Cibelle B Figueiredo ◽  
Mauricia B Silva ◽  
Juliano Fernandes ◽  
Alana M Calaça ◽  
Higor Rocha ◽  
...  

Abstract The aim of this trial was to evaluate the effect of encapsulated calcium ammonium nitrate as a partial substitute for soybean meals in the concentrate dry matter intake, average daily gain and feed efficiency of Nellore young bulls under grazing conditions, during the dry season. Sixty-four weaned Nellore (initial BW = 177.46±3.77 kg and 9 mo old) were used in a completely randomized assay. The study lasted 84 days on the dry season. Animals were allotted into 16 paddocks of 1.0 ha each of Urochloa brizantha, randomly assigned into one of two treatments: (CTL) supplement with 25% CP, without nitrate inclusion and; (ENP): supplement with 25% CP, with a inclusion of 50 g of encapsulated calcium ammonium nitrate to each 100 kg of body weight. Animals were fed with concentrate at 1.0% of body weight. Concentrate offered was monitored daily as well as his refusals were collected and weighed to determine daily concentrate dry matter intake (DMI) and feed efficiency (F:G). Animals were weighed every 28 d for calculating average daily gain (ADG). Data were analyzed as a completely randomized design, using ANOVA (α = 0.05). No effects of treatments (P > 0.3487) were observed for final BW (246.69 kg). The same for concentrate dry matter intake (P > 0.0550). Animals consumed 2.34 kg of supplement per day. The average daily gain (0.832 kg, P > 0.2649) and feed efficiency (0.356 kg, P > 0.7315) were not affected by the inclusion of nitrate. The inclusion of encapsulated calcium ammonium nitrate in supplement to Nellore young bulls under grazing conditions during the growing phase did not affect the performance.


2016 ◽  
Vol 38 (2) ◽  
pp. 155 ◽  
Author(s):  
Solano Felipe Just de Andrade ◽  
Ângela Maria Vieira Batista ◽  
Francisco Fernando Ramos de Carvalho ◽  
Rodrigo Barros de Lucena ◽  
Rafael De Paula Xavier de Andrade ◽  
...  

The objective was to evaluate the effect of partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus on performance and body weight components of sheep. Thirty hair lambs, with 19 kg ± 0.35 kg initial weight, were randomly divided into five treatments, namely: Tifton 85 Hay (HA); Tifton 85 Hay + fresh spineless cactus (HAFC); Tifton 85 Hay + dehydrated spineless cactus (HADC); fresh spineless cactus (FC); dehydrated spineless cactus (DC). In addition to the spineless cactus and hay, the complete mixture contained soybean meal, mineral salt and limestone in all treatments. Animals were confined for 75 days and then slaughtered. The weight of body components was recorded. Dry matter intake, total digestible nutrients intake and voluntary water intake were higher (p < 0.05) for the DC and HADC treatments. The average daily gain was 118 g day-1 and body weight at slaughter of 25.8 kg were not influenced (p > 0.05) by treatments. The cold carcass weight, rib eye area, weight and yield of the skin, liver, kidney and large intestine were higher (p < 0.05) for the DC and HADC treatments. Partial or total replacement of Tifton 85 hay with fresh or dehydrated spineless cactus, in complete diets for sheep, increases the weight of the cold carcass and non-carcass components. 


2018 ◽  
Vol 39 (6) ◽  
pp. 2645 ◽  
Author(s):  
Raizza Fátima Abadia Tulux Rocha ◽  
Andréa Roberto Duarte Lopes Souza ◽  
Maria Da Graça Morais ◽  
Mayara Mitiko Yoshihara Carneiro ◽  
Henrique Jorge Fernandes ◽  
...  

This study aimed to assess the performance, carcass traits, and non-carcass components of feedlot finished Texel crossbred lambs from different residual feed intake classes (RFI). Forty-seven uncastrated male Texel crossbred lambs (¾ Texel + ¼ Pantaneira) tested here were 4-month-old with an initial weight of 29.9 ± 5.5 kg. The lambs were confined for 70 days for individual dry matter intake (DMI) and average daily gain (ADG) assessment. The diet containing corn silage was provided as roughage, while the concentrate consisted of corn grain, soybean meal, urea, and mineral mixture with a 40:60 roughage to concentrate ratio and 76.34% total digestible nutrients (TDN). After confinement for 70 days, the lambs were slaughtered to assess carcass traits and non-carcass components. Based on the RFI, lambs were divided into three classes according to the standard deviation (sd): Positive RFI (inefficient, 0.5 above the mean), Negative RFI (efficient, 0.5 below the mean), and Medium RFI (intermediate). Classes with Negative (efficient) and Positive RFI (inefficient) showed no differences in ADG (0.321 vs 0.306 kg; P > 0.05). Dry matter intake (g d-1), and percentage of body weight (BW) differed significantly between the RFI classes (P < 0.05). Compared to lambs in the inefficient class, those in the efficient class (Negative RFI) showed a 9% reduction in DMI and had the same ADG. The lambs in either Positive or Negative RFI classes showed no weight differences between non-carcass components (P > 0.05). The RFI classes showed no differences in shrunk body weight, hot carcass weight, hot dressing, and weight of commercial cuts (P > 0.05). They showed no differences in neck, shoulder + shank, loin, rack, flank steak, rack cap off, and leg weights (P > 0.05). Our results indicate that improvement in feed efficiency, as a function of the RFI index, does not compromise performance and carcass traits of Texel crossbred lambs.


2021 ◽  
Vol 31 (2) ◽  
pp. 220-229
Author(s):  
A. M. Adeleye ◽  
A. B. J. Aina ◽  
I. F. Adu

The study was conducted for 48 days to assess the use of kaun as a source of mineral for Hest African Dwarf sheep. The study was in two parts. Experiment l involved the use of milled kaun mixed with formulated concentrate consisting of wheat offal (50%), palm kernel cake (25%) and dried brewer's grains (25%). Experiment II was the use of dissolved kaun administered to the animals in form / drenching. Each group of animals in experiment 1 was allocated to experimental diet containing milled kaun (0.00, 0.14, 0.28, 0.45 and 0.56g/kg body weight/ram. day) and to kaun solution (0,2,4,6 and 8g: 10ml of water/ram/day) in experiment II. In Experiment I, significant (P<0.05) effects of the diets were observed on average daily gain, dry matter intake and water consumption. The rams on D3 significantly (P<0.05) performed better in daily gain, dry matter intake and feed efficiency than those on other dietary treatment. Water consumption increased with increasing level of kaun in the diets. Animals on D5 had the highest water consumption. No significant (P>0.05) effects of the diets were observed on faecal and urinary mineral outputs of the rams fed kaun supplemented diet. The concentration of these minerals was higher at the end of the experiment than at the beginning thereby giving positive balance. Significant (P<0.05) negative mineral balance was noticed between serum mineral before and after the experiment. This could suggest that mineral utilization was encouraged by kaun inclusion in the concentrate feed. In Experiment II, there were significant (P<0.05) effects of the test diets on average daily gain, dry matter intake and water consumption. Diet 4 (g/10ml of water/ram/day) and D5 (8g:10ml of water/ram/day) performed better with an average daily gain of 100g/d and 92.9g/d; dry matter intake, 70g W0.7kg and 66g/W0.75kg; feed efficiency 0.700 and 0.710, respectively. Water consumption also increased with increase in the concentration of kaun solution but water consumption in treatment groups was lower than in the control (0.10L/kg body weight). The results of this study suggest that 0.28g kaun kg body weight ram/d) promoted better performance in experiment / while 6g kaun/10ml of water, or 8g kaun 10ml of water/ram/d promoted better performance in experiment II. These levels of kaun as a source of mineral in sheep production are therefore recommended for optimum performance.


2015 ◽  
Vol 36 (6) ◽  
pp. 3827 ◽  
Author(s):  
Regis Luis Missio ◽  
João Restle ◽  
José Luiz Moletta ◽  
Fernando Kuss ◽  
José Neuman Miranda Neiva ◽  
...  

This study aimed to evaluate the effect of slaughter weight on animal performance, carcass commercial cuts and meat characteristics of Purunã cows feedlot finished. We used 28 cull cows with 68.02±17.36 months of age slaughtered at different weights (461, 476, 434 and 522 kg). The experimental design was completely randomized with four treatments (slaughter weight) and seven replicates (animals). The dry matter intake, expressed as kg d-1 and % of body weight, presented quadratic variation with increasing slaughter weight, with the highest values observed for slaughter weight of 461 kg. The average daily gain decreased linearly, whereas the absolute weight of forequarter, short ribs, and pistol cut linearly increased by the advance of slaughter weight. In relative terms only the short ribs was changed by increase slaughter weight, increasing linearly. Between the proportions of meat cuts prepared for commercialization, linear increases were observed for the chuck and striploin. Increasing slaughter weight promoted linear increases in the scores of color, marbling and palatability, but did not alter the score of tenderness of the meat. The increase of slaughter weight of cull cows of the Purunã breed reduces animal performance, increasing the losses by trimming fat, with important benefits only for the meat palatability.


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


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 163-163
Author(s):  
Katie J Heiderscheit ◽  
Stephanie L Hansen

Abstract To determine effects of supplemental Zn on post-transit growth and plasma Zn and serum lactate concentrations, 54 Angus-cross steers (297 kg ± 12) were stratified by body weight to nine GrowSafe-equipped pens. Treatments began 25 d prior to transit and included: control (CON; no supplemental Zn), industry (IND; 70 mg supplemental Zn/kg DM), and supranutritional Zn (SUPZN; 120 mg supplemental Zn/kg DM). Supplemental Zn was provided as bis-glycinate bound Zn (Plexomin Zn; Phytobiotics North America, Cary, NC). On d 0, steers were loaded into a commercial trailer and transported 18 h (1,822 km). Individual BW were recorded on d -26, -25, -1, 0 (pre-transit), 1 (post-transit), 6, 27, and 28. Blood was collected on d -1, 1, 6, and 28. Data were analyzed using Proc Mixed of SAS with fixed effect of diet and steer as the experimental unit (n = 18 steers per treatment). Blood measures were analyzed as repeated measures with the repeated effect of day. Percent of pre-transit dry matter intake (DMI) was calculated relative to DMI for the 5 days prior to transit. Plasma Zn concentrations were greater in IND and SUPZN than CON (P = 0.01) and were greater on d 1 than d -1, 6, and 27 (P &lt; 0.01). By d 2, both IND and SUPZN returned to pre-transit DMI levels while CON did not (P = 0.01). Further, DMI from d 1 to 28 was greatest in IND, intermediate in SUPZN, and least in CON (P = 0.04). Average daily gain from d 6 to 28 linearly improved with increasing Zn supplementation (P = 0.02). Regardless of treatment, serum lactate concentrations were greater post-transit compared to pre-transit values (P = 0.02). Steers supplemented dietary Zn recovered DMI faster and had greater ADG after a transit event.


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


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