scholarly journals Influence of Feeding Peanut Skins on Performance of Gulf Coast Ewe Lambs

2017 ◽  
Vol 1 (2) ◽  
pp. 20-24 ◽  
Author(s):  
Gamal M. Abdelrahim ◽  
J. Khatiwada ◽  
D. Rankins ◽  
N. Gurung ◽  
A. Gueye
Keyword(s):  
Dry Matter ◽  
Gulf Coast ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Dry Matter Intake ◽  
Experimental Unit ◽  
Feeding Trial ◽  
Ewe Lambs ◽  
Peanut Skins ◽  
Dietary Treatments

The effects of varying levels of dietary peanut skins (PS) inclusion on dry matter intake (DMI), growth, and carcass characteristics of lambs was assessed in 135-d feeding trial. We hypothesized that supplementing lambs’ diet with increasing levels of PS would increase DMI, enhance body growth, and impact carcass characteristics. Thus, the overall objective of the study was to gain a thorough understanding of the feeding value of PS to lambs. Twelve Gulf Coast ewe lambs (27.75 ± 0.93 kg initial body weight (BW) and 7 to 8 months of age) were blocked by BW and were randomly assigned within block to 1 of the 3 dietary treatments. Lambs were grouped in 2 pens per treatment (2 lambs/pen; n = 4/dietary treatment) with pen serving as the experimental unit. Lambs were fed dietary treatments containing 0 (control), 20, or 40% PS (DM basis) as a replacement for corn and SBM. Control diet contained dry-rolled corn, SBM, and fescue/Bermuda grass hay at forage to concentrate ratio of 63:37. All diets were formulated to meet or exceed the NRC requirements of the finishing lambs. At the end of the feeding trial, lambs were slaughtered, and carcass data were collected after a 48-h chill. Dry matter intake and final BW were not different among treatments (P >0.05). Also, no differences were observed in hot carcass weight (HCW; P = 0.57), cold carcass weight (CCW; P = 0.24), body wall fat (P = 0.06), 12th rib fat (P = 0.10), and kidney and pelvic fat (K&P fat; P = 0.65) among treatments. However, rib eye area (REA) was greater (P < 0.01) in lambs fed 0% and 20% PS than in lambs fed 40% PS. These results suggest that PS can replace a portion of corn and SBM commonly fed to lambs without any adverse effects on carcass characteristics or lambs performance. Thus, PS needs to be seriously considered as a potential low-cost feedstuff for ruminants.

scholarly journals Effect of Dietary Supplementation of Ferrous Sulfate on Performance and Carcass Characteristics of Finishing Lambs

2017 ◽  
Vol 1 (1) ◽  
pp. 7-12
Author(s):  
Gamal M. Abdelrahim ◽  
J. Khatiwada ◽  
A. Gueye
Keyword(s):  
Dry Matter ◽  
Body Wall ◽  
Gulf Coast ◽  
Carcass Characteristics ◽  
Dietary Supplementation ◽  
Dry Matter Intake ◽  
Quality Data ◽  
Experimental Unit ◽  
Dietary Treatments ◽  
Meat Sheep

The objective of this study was to evaluate the effects of including elevated levels of FeSO4 in lambs diet on DMI, growth, and carcass characteristics. Twenty-four Gulf Coast wether lambs (26.3 ± 3.63 kg initial BW, and 8 to 9 months of age) were assigned to one of 2 blocks based on their BW were randomly allocated to 1 of the 3 dietary treatments, giving 8 lambs per treatment. Animals were grouped in 2 pens per treatment (4 lambs/pen) with pen serving as the experimental unit. Treatment diets containing supplemental FeSO4 at 0, 75, or 150 mg/kg of DM were fed lambs. Treatment diets consisted of dry-rolled corn, SBM, and fescue/bermudagrass hay and were formulated to be isonitrogenous and isocaloric and to meet or exceed the NRC requirements of a finishing lamb. Lambs were slaughtered, and data were collected after a 48-h chill. Both growth and carcass quality data were analyzed using the GLM procedures. Dry matter intake, final BW, and ADG were not different among treatments (P = 0.5, 0.9, and 0.7, respectively). Also, no differences were observed in HCW (P = 0.9), CCW (P = 0.8), body wall fat (P = 0.6), 12th rib fat (P = 0.9), K&P fat (P = 0.9) and REA (P = 0.7) among treatments. These results support our hypothesis that the addition of 75 or 150 mg FeSO4 /kg in finishing lamb diets do not impact DMI, growth rate, and carcass characteristics of meat sheep.

scholarly journals 389 Effects of energy source on performance and carcass characteristics in hair lambs finished in feedlot

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 155-156
Author(s):  
Roman Castañeda-Serrano ◽  
Fabian Gutierrez-Oviedo ◽  
Marcela Diaz-Cristancho ◽  
Jairo Pardo-Guzman ◽  
Paula Lozano-Morales ◽  
...  
Keyword(s):  
Energy Source ◽  
Body Weight ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Palm Kernel ◽  
Carcass Characteristics ◽  
Dry Matter Intake ◽  
Feeding Trial ◽  
The Mean ◽  
Dietary Treatments

Abstract The objective of this study was to evaluate the effects of different energy sources on performance, and carcass characteristics in hair lambs finished in feedlots. Twenty-eight hair lambs with an initial body weight (BW) 20.8 ± 3.01, were randomly assigned to one of four dietary treatments included with seven lambs per treatment. The dietary treatments included an energy source included at 18% Dry matter: S. spectabilis flour (SF), palm kernel (PK), corn bran (CB) and rice bran (RB) in a diet based in corn silage, ground corn, soybean meal formulated to 13.0% PC and 2.6 Mcal/Kg of DM. The feeding trial was performed for 13 weeks. Water was allowed ad libitum. Animals were slaughtered after the feeding trial, and the carcasses were kept at 4°C for 24 h under Colombian standard guidelines. Data were analyzed by using the ANOVA procedure, SAS version 9.1 to perform a randomized complete experiment with four diets. For each studied variable, the mean and standard error of the mean (SEM) were calculated and differences between means were evaluated Using Tukey′s Test (P ≤ 0.05). Final body weight, hot carcass weight, cold carcass weight, hot dressing carcass (%), and cold dressing weight (%) were not different between the four treatments (P &gt; 0.05). Dry matter intake was superior to the S. spectabilis flour (P &lt; 0,001). Feed efficiency was higher in the CB and RB treatments (P &lt; 0,05). These results indicate that the inclusion of S. spectabilis and palm kernel could improve the dry matter intake and corn bran and rice bran the feed efficiency without effects on carcass characteristics

scholarly journals Effects of voluntary removal of ractopamine hydrochloride (Optaflexx) on live performance and carcass characteristics of beef steers

2021 ◽  
Author(s):  
P J Rincker ◽  
J B Allen ◽  
M Edmonds ◽  
M S Brown ◽  
J C Kube
Keyword(s):  
Dry Matter ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Dry Matter Intake ◽  
Beef Steers ◽  
Live Performance ◽  
Meet Residue ◽  
Ractopamine Hydrochloride ◽  
The Impact ◽  
Linear Manner

Abstract There is a lack of consistency across the globe in how countries establish tissue ractopamine residue limits and which residue limits are applied to various tissues, particularly for edible noncarcass tissues. Therefore, some US beef slaughter organizations have recommended a 48-h voluntary removal of ractopamine before slaughter in order to meet residue requirements of specific export countries and maintain international trade. Our objective was to assess the impact of voluntary removal of ractopamine hydrochloride (Optaflexx®; Elanco, Greenfield, IN) up to 8 d before slaughter on growth performance and carcass characteristics. Crossbred beef steers (60 pens of 10 animals/pen) with an initial shrunk body weight (BW) of 611.8 ± 10 kg SEM were fed one of six treatments over 42 d. Treatments included a control that did not receive ractopamine, on-label use of ractopamine (0-d withdrawal), and 2, 4, 6, or 8 d of voluntary removal of ractopamine from feed before slaughter. The start of ractopamine feeding (30.1 mg/kg of diet dry matter for 32 d) was staggered so that blocks could be slaughtered on the same day. Dry matter intake was decreased by 0.5 kg/d when ractopamine was fed with a 0-d withdrawal (P = 0.04) compared to the control, but was not altered (P = 0.56) as the duration of ractopamine removal increased from 0 to 8 d. Final BW, total BW gain, and average daily BW gain were increased by feeding ractopamine with a 0-d withdrawal (P = 0.09) compared to the control, but these variables decreased in a linear manner (P = 0.10) as the duration of removal increased from 0 to 8 d. Gain efficiency was improved by 15% (P &lt; 0.01) by feeding ractopamine with a 0-d withdrawal compared to the control, and gain efficiency decreased linearly (P = 0.06) as the duration of ractopamine removal increased. Approximately 2/3 of the increase in gain efficiency remained after 8 d of removal. Hot carcass weight was increased by 6 kg (P = 0.02) by feeding ractopamine with a 0-d withdrawal compared to the control. Measured carcass characteristics were not altered by ractopamine feeding or by removal before slaughter (P ≥ 0.24). The consequences of voluntary removal of ractopamine up to 8 d before slaughter were a linear decrease in live BW gain (0.64 kg/d), poorer gain efficiency, and numerically lighter carcass weight.

scholarly journals 227 Evaluation of reimplant timing with Revalor-200 on steer performance and carcass characteristics

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 127-128
Author(s):  
Caitlin A Coulson ◽  
Bradley M Boyd ◽  
Henry Hilscher ◽  
Brandon L Nuttelman ◽  
Grant I Crawford ◽  
...  
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Carcass Characteristics ◽  
The Other ◽  
Carcass Weight ◽  
Dry Matter Intake ◽  
Optimal Time ◽  
Trenbolone Acetate ◽  
First Derivative ◽  
Randomized Block Design

Abstract The objective of this study was to evaluate the optimal time to reimplant following an initial implant on performance and carcass characteristics when steers were fed for 180 d. Crossbred steers (n = 800; initial BW = 330 ± 25 kg) were utilized in a generalized randomized block design and assigned randomly to pen, and pen assigned randomly to one of five treatments. Treatments included 5 different days on terminal (DOT) implant (160, 120, 100, 80 or 40 DOT). All steers were given an initial implant (80 mg trenbolone acetate (TBA) + 16 mg estradiol; Revalor-IS) on d 1. Terminal implant consisted of 200 mg TBA + 20 mg estradiol (Revalor-200). Dry matter intake was the least for 40 DOT (P ≤ 0.04), with no differences between the other treatments (P ≥ 0.11). Carcass-adjusted final BW responded quadratically (P = 0.03) with 100 DOT having the greatest final BW but was not different from 120 DOT (P = 0.82). Carcass-adjusted ADG and G:F responded quadratically (P = 0.02 and P < 0.01, respectively). When solved for the first derivative, carcass-adjusted ADG and G:F were maximized at 99 and 87 DOT, respectively. However, there was less than a 2% difference in carcass-adjusted ADG and G:F between 80 and 120 DOT. Hot carcass weight responded quadratically (P = 0.03), with the greatest HCW at 100 DOT. Solving for the first derivative, HCW was optimized at 104 DOT. There were no differences in back fat, marbling, or yield grade (P ≥ 0.27). Overall, administering an initial implant followed by a terminal implant 85 to 105 d prior to harvest increased gain, efficiency, and HCW in steers when fed for 180 d. Minimal changes in performance and carcass characteristics when steers are reimplanted 80 to 120 d prior to harvest suggests flexibility in reimplanting windows.

scholarly journals Effect of breed type and ionophore supplementation on growth and carcass characteristic in feedlot hair lambs

2010 ◽  
Vol 39 (3) ◽  
pp. 633-637 ◽  
Author(s):  
Jaime Salinas-Chavira ◽  
Alfredo Lara-Juarez ◽  
Abraham Gil-González ◽  
Jorge Jimenez-Castro ◽  
Ramón Garcia-Castillo ◽  
...  
Keyword(s):  
Growth Rate ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Dry Matter Intake ◽  
Longissimus Dorsi ◽  
Feeding Trial ◽  
Breed Type ◽  
Daily Gain

The effects of supplementing feedlot diets with ionophores and breed type were assessed on growth rate and carcass characteristics in hair lambs. Twenty four intact males, 12 Pelibuey × Dorper (PDo) and 12 Pelibuey × Damara (PDa) lambs, 17.9 ± 3.7 kg initial weight, were housed in individual pens for a 60-d feeding trial. The lambs were assigned randomly into four diets: control without additives (C); 25 µg/g monensin (M); 28 µg/g salinomycin (S); 28 µg/g S for 20 d, and 25 µg/g M for the next 40 d (SM). Each diet was supplied to six lambs. Data were analyzed as a randomized complete block design in a 4 × 2 factorial arrangement, with four diets and two breed types of hair lambs (PDo and PDa). All diets were formulated to contain 14% CP and 2.6 Mcal ME/kg dry matter. At the end of the feeding trial carcass images were recorded in the last intercostal space (12th and 13th ribs) using ultrasound equipment to measure the Longissimus dorsi muscle area and subcutaneous fat (SF). The average daily gain (ADG), daily dry matter intake, feed:gain ratio, subcutaneous fat and Longissimus dorsi area were not affected by ionophore supplementation.. The Pelibuey × Dorper group tended to show better average daily gain than Pelibuey × Damara (262 g/d and 235 g/d, respectively). Daily dry matter intake, feed:gain ratio and subcutaneous fat were not affected by breed type. The Pelibuey × Dorper lambs had greater Longissimus dorsi area (16.74 cm²) than the Pelibuey × Damara (14.29 cm²) lambs. The growth rate was not influenced by the inclusion of ionophores. Pelibuey × Dorper lambs showed better average daily gain and carcass characteristics than Pelibuey × Damara lambs.

scholarly journals PSII-19 Effect of zinc and chromium supplementation on performance and carcass characteristics in feedlot steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 400-401
Author(s):  
Harrison D Hallmark ◽  
Joanis T Zervoudakis ◽  
Juliana Akamine Torrecilhas ◽  
Luciana K Hatamoto-Zervoudakis ◽  
Henrique Toller ◽  
...  
Keyword(s):  
Dry Matter ◽  
Carcass Characteristics ◽  
Dietary Treatment ◽  
Feedlot Cattle ◽  
The Other ◽  
Carcass Weight ◽  
Dry Matter Intake ◽  
Marbling Score ◽  
Feedlot Steers ◽  
Supplemental Zinc

Abstract One hundred and sixty-five crossbred steers were used in this experiment to investigate the influence of supplemental zinc (Zn) and chromium (Cr) on performance and carcass characteristics of feedlot steers fed steam-flaked corn-based finishing diet. Steers were blocked by initial BW (518.9 ± 8.4 kg) within cattle source (2 sources) and housed in pens containing 6–7 steers per pen. Pens within blocks were randomly assigned to treatments in a 2 x 2 factorial arrangement, with factors being: 30 or 90 mg of Zn/kg DM and 0.0 or 0.25 mg Cr/kg DM. Treatments consisted of: 1) 30 mg Zn/kg DM; 2) 90 mg Zn/kg DM; 3) 30 mg Zn + 0.25 mg Cr/kg DM; and 4) 90 mg Zn/kg + 0.25 mg Cr/kg DM. Zinc was supplemented as ZnSO4 and Cr supplemented as Cr propionate. Steers were individually weighted on 2 consecutive days prior to initiating dietary treatment and on 2 consecutive days at the end of the experiment. Dietary treatment were initiated 64 days prior to slaughter (total days on feed = 240). All cattle were transported to a commercial abattoir on the same day and slaughtered. Steers receiving supplemental Cr had greater final BW (P &lt; 0.02) and ADG (P &lt; 0.03) when compared to non-Cr supplemented steers. Additionally, hot carcass weight (P &lt; 0.005) and marbling score (P &lt; 0.03) were greater (P &lt; 0.005) for steers receiving 30 mg Zn/kg DM + 0.25 mg Cr/kg DM when compared with all other treatments. Dry matter intake, morbidity and mortality, and all the other carcass measurements were similar across treatments. These data indicate that under the conditions of this experiment, Zn and Cr supplementation may influence feedlot cattle growth and carcass characteristics.

Carcass characteristics of heavyweight crossbred lambs. II.* Carcass composition and partitioning of fat

1979 ◽  
Vol 30 (6) ◽  
pp. 1207 ◽  
Author(s):  
JM Thompson ◽  
KD Atkins ◽  
AR Gilmour
Keyword(s):  
Connective Tissue ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Ewe Lambs ◽  
Intermuscular Fat

Half-carcasses of 108 wether and ewe lambs from six genotypes, slaughtered at 34, 44 and 54 kg liveweight, were dissected into subcutaneous fat, intermuscular fat, muscle, bone and connective tissue. The six genotypes were the progeny of Dorset Horn and Border Leicester rams mated to Merino, Corriedale and Border Leicester x Merino first-cross ewes. As carcass weight increased, the proportion of subcutaneous and intermuscular fat increased (b > 1 ; P < 0.05) and the proportion of muscle and bone decreased (b < 1; P < 0.05). Lambs sired by Border Leicester rams had more subcutaneous fat (12.7%), more intermuscular fat (7.6%) and more bone (5.7%) than lambs sired by Dorset Horn rams at the same carcass weight (P< 0.05). Similarly, lambs sired by Dorset Horn rams had more muscle (7.2%) than lambs sired by Border Leicester rams at the same carcass weight (P < 0.05). Breed of dam had no effect on carcass composition. Wether lambs had a greater proportion of bone (5.7%) than ewe lambs at the same carcass weight (P < 0.05). The breed of sire effect and the lack of a breed of dam effect on carcass composition, in conjunction with estimated mature weights for the breeds, suggest possible differences between sire and dam breeds in the partitioning of fat between the carcass and non-carcass depots. ____________________ *Part I, Aust. J. Agric. Res., 30: 1197 (1979).

Growth performance, nutrient digestibility, carcass and economic characteristics of turkey poults fed millet-based diets as a replacement for maize

2021 ◽  
Vol 41 (1) ◽  
pp. 91-99
Author(s):  
A. A. Malik ◽  
M. J. Ibrahim ◽  
Y. S. Kudu ◽  
O. P. Jibogun ◽  
Y. J. Adeniyi ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Lower Cost ◽  
Body Weight Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Feeding Trial ◽  
Turkey Poults ◽  
Dietary Treatments

A nine (9) weeks feeding trial was conducted on seventy two (72) day-old Indigenous turkey poults raised on deep litter to determine their growth performance, carcass and economic characteristics when fed three dietary treatments (T1, T2, and T3, containing 0%, 25% and 50% replacement of maize with millet respectively. The birds were divided into three replicates of 8 birds per replicate; making a total of 24 birds per treatment. At the end of the & week, 4 birds per replicate were transferred to specially-designed metabolism cages for a digestibility study involving the collection of faecal droppings; while at the end of the week of the experiments, two birds per replicate were randomly selected and slaughtered to determine their carcass characteristics. Turkey poults fed millet at 25 %replacement showed significantly (p<0.05) higher body weight gain, lower cost of feed per kg live weight gain and higher revenue generated per bird; but there were no significant (p>0.05) differences in the performance of birds on 0% and 50 % replacements for those parameters. Also, there were no significant (p>0.05) differences in feed intake and mortality across the treatments. Similarly, there were no significant (p>0.05) differences in nutrient digestibilities and carcass characteristics of the birds among the various dietary treatments. Therefore, it can be concluded hat millet cam be used to replace maize up to S0 % in the diets of turkey poults at the starter phase with no detrimental effects on their performance

Effects of the percentage of Texel or Rouge de ľOuest genes in lambs on carcass characteristics and meat quality

1999 ◽  
Vol 69 (1) ◽  
pp. 81-92 ◽  
Author(s):  
A. F. Carson ◽  
B. W. Moss ◽  
R. W. J. Steen ◽  
D. J. Kilpatrick
Keyword(s):  
Meat Quality ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Fat Content ◽  
Carcass Weight ◽  
Ewe Lambs ◽  
Bone Content ◽  
Intermuscular Fat ◽  
Ram Lambs

AbstractThis study investigated the effects of the percentage of Texel or Rouge de l’Ouest (Rouge) genes in lambs (0, 50, 75 or 100%; the remainder being Greyface (Border Leicester × Scottish Blackface)) on lamb carcass characteristics and meat quality. Ewe lambs were slaughtered at 34, 40, 46 and 52 kg and ram lambs were slaughtered at 40, 46, 52 and 58 kg live weight. Dressing proportion increased (P < 0·001) by 0·53 and 0·27 g carcass weight per kg live weight for each 1% increase in Texel or Rouge genes respectively. Carcass conformation classification increased (P < 0·001) by 0·016 and 0·007 units (on a five-point scale) for each 1% increase in Texel or Rouge genes respectively. Carcass fat depth measures were reduced by Texel and Rouge genes such that at a constant fat depth end point, carcass weight could be increased by 0·029 and 0·023 kg for each 1% increase in Texel or Rouge genes. Carcass lean content increased (P < 0·001) by 0·99 and 0·27 g/kg for each 1% increase in Texel or Rouge genes. Subcutaneous fat content was reduced (P < 0·001) by 0·36 and 0·29 g/kg for each 1% increase in Texel or Rouge genes. Intermuscular fat content was reduced (P < 0·01) by 0·38 g/kg per 1% increase in Texel genes, whereas Rouge genes had no effect. Similarly, bone content was reduced (P < 0·01) by Texel genes only (0·31 g/kg per 1% increase in Texel genes). Warner-Bratzler shear force values showed a quadratic effect with increasing Texel and Rouge genes, with an initial decrease from 0 to 50% followed by an increase to 100%. Cooking loss increased (P = 0·05) as the percentage of Rouge genes in lambs increased. Increasing the percentage of Texel or Rouge genes significantly increased L* values (P < 0·01 and P < 0·05 respectively), b* values (P = 0·05 and P< 0·05 respectively) and H° values (P < 0·001).

scholarly journals A comparison of first-, second- and third-cut timothy silages in the diets of finishing beef bulls

2017 ◽  
Vol 26 (1) ◽  
pp. 16 ◽  
Author(s):  
Arto Kalevi Huuskonen ◽  
Maiju Pesonen
Keyword(s):  
Growth Rates ◽  
Present Experiment ◽  
Dry Matter ◽  
Carcass Characteristics ◽  
Feeding Experiment ◽  
The Third ◽  
Grass Silage ◽  
Ad Libitum ◽  
Dietary Treatments ◽  
Vitamin Mixture

The objective of the present experiment was to study the effects of the third-cut grass silage compared with the first- and second-cut silages on intake, performance and carcass characteristics of finishing bulls. A feeding experiment comprised 45 Simmental bulls which were fed a total mixed ration ad libitum. The three dietary treatments included either first-, second- or third-cut grass silage (550 g kg-1 dry matter), rolled barley (435 g kg-1 dry matter) and a mineral-vitamin mixture (15 g kg-1 dry matter). Dry matter and energy intakes and growth rates of the bulls increased when either first- or third-cut silages were used instead of the second-cut silage. This was probably due to differences in digestibility, which was the lowest in the second-cut silage. There were no differences in intake or growth between the first- and third-cut silage-based rations. No significant differences in carcass traits among the feeding treatments were observed.

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