scholarly journals Feedlot Performance and Carcass Characteristics of Steers Fed High-Energy Rations

2021 ◽  
Vol 2 (2) ◽  
pp. 270-276
Author(s):  
M. B. Olayiwole ◽  
M. B. Ahmed ◽  
T. D. Bell
Keyword(s):  
Federal Government ◽  
Cotton Seed ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
High Energy ◽  
The Other ◽  
Meat Production ◽  
Animal Performance ◽  
Feedlot Performance ◽  
Feeding Trials

THREE feeding trials, 24 [pure Zebu and Zebu x Friesian crossbred] steers per each, were conducted to compare 4 rations [treatments) at three different periods of the year.  Four equal and randomly distributed groups of steers were put on 4 different but iso-calorie rations. Levels of crude protein varied from 21.4 to 18.9% as shown in table 1. The steers were individually fed for 56 days to effect 1.12 kg. gain per head daily.  Digestibility levels of the four rations were determined [Table 2]. At slaughter, carcass data were obtained and analysed [Table 4]. Animal performance, and economics of the feeding operation data are presented in Table 3.  Results of these studies showed that the 30-20% cotton seed rations gave significantly [P <0.001] higher total liveweight gains, slightly heavier carcasses and better grades than the other two rations.  Considering results of all the parameters measured and Federal Government of Nigeria's concerted efforts to boost grains and meat production on large scales, ration 3 should be recommended. Because, with abundant supplies of grains and regular supplies of animals, faster throughput and increased gross return per feedlot per annum are feasible.

RAPESEED GUM IN FINISHING DIETS FOR STEERS

1978 ◽  
Vol 58 (2) ◽  
pp. 139-142 ◽  
Author(s):  
G. W. MATHISON
Keyword(s):  
Crude Protein ◽  
Carcass Characteristics ◽  
Rapeseed Meal ◽  
Nutrient Digestibility ◽  
Animal Performance ◽  
Feedlot Performance ◽  
Finishing Diets ◽  
Ad Libitum ◽  
High Level

Fifty steers were fed ad libitum for 127 days to evaluate the effect on animal performance and nutrient digestibility of the addition of rapeseed meal and rapeseed gum to a feedlot ration containing a high level of barley. There were no beneficial responses (P > 0.05) in nutrient digestibility, feedlot performance or carcass characteristics when 5% rapeseed meal was added to a high-barley diet containing 10.8% crude protein. The addition of 0.1, 0.2 or 3% rapeseed gum to the diet also had no significant (P > 0.05) effect on any of the parameters measured.

scholarly journals FEEDLOT PERFORMANCE OF FIVE BREEDS OF SHEEP AND THEIR CARCASS CHARACTERISTICS

1966 ◽  
Vol 46 (3) ◽  
pp. 139-148 ◽  
Author(s):  
J. A. Vesely ◽  
H. F. Peters
Keyword(s):  
Muscle Fiber ◽  
Environmental Variables ◽  
Carcass Characteristics ◽  
Weight Basis ◽  
The Other ◽  
Carcass Weight ◽  
Feedlot Performance ◽  
Creep Feeding ◽  
Constant Weight ◽  
Fiber Thickness

Average daily gains of Suffolk, Targhee, Columbia, Rambouillet, and Romnelet wether lambs in three 75-day tests were: 0.20, 0.18, 0.16, 0.15, and 0.13 kg. The average carcass weights were: Suffolk, 26.0; Targhee, 23.0; Columbia, 21.5; Rambouillet, 21.7; and Romnelet, 20.9 kg. Only Columbias graded lower (P < 0.01) in carcass score than Suffolks. Single lambs had significantly (P < 0.01) higher carcass grades than twins. Preweaning environmental variables such as age of dam, type of rearing, and creep feeding on range did not affect postweaning gain in the feedlot.Breed differences were small in carcass measurements and weights of wholesale cuts as determined on constant weight basis. The most typical conformation characteristics of the Suffolk carcass, in relation to the other breeds, were: shorter body and hind leg, shallower chest, wider hips, and larger circumference of hind leg. Carcass weight was the most important source of variation in the carcass measurements and weights of wholesale cuts.Breed differences in tenderness, muscle fiber thickness, and amount of fat deposited throughout the muscle were small.

Diet selection by a ruminant generalist browser in relation to plant chemistry

1993 ◽  
Vol 71 (11) ◽  
pp. 2236-2243 ◽  
Author(s):  
C. McArthur ◽  
C. T. Robbins ◽  
A. E. Hagerman ◽  
T. A. Hanley
Keyword(s):  
Dry Matter ◽  
Odocoileus Hemionus ◽  
High Energy ◽  
The Other ◽  
Phenolic Fraction ◽  
Energy Plant ◽  
Diet Preference ◽  
Feeding Trials ◽  
The Difference ◽  
The Cost

Captive mule deer (Odocoileus hemionus hemionus) and black-tailed deer (O. h. sitkensis) were used in cafeteria-type, two choice feeding trials to test the hypothesis that digestible dry matter (energy) and nontannin phenolics of tree, shrub, and forb leaves are major determinants of diet preference. Deer selected plants in relation to a trade-off between the benefit derived from digestible dry matter and the cost of nontannin phenolics presumably associated with toxicity when absorbed. When one of the forages contained both the highest digestible dry matter and lowest nontannin phenolics, the deer always preferred that plant. When one forage had the highest digestible dry matter but the other plant had the lowest nontannin phenolics, the deer selected the high-energy plant when the difference in nontannin phenolics was relatively small, but they preferred the low-energy plant when the other forage had much higher levels of nontannin phenolics. Tannins influenced diet choice only as one of the factors reducing digestible dry matter in these forages. Apparently total dry-matter intake was constrained by the nontannin phenolic fraction but not by tannins. Tannins and nontannin phenolics both contribute to defending plants against browsers.

EFFECTS OF FEEDING MELENGESTROL ACETATE IN COMBINATION WITH DIETHYLSTILBESTROL AND ZERANOL IMPLANTS ON THE FEEDLOT PERFORMANCE OF FINISHING HEIFERS

1974 ◽  
Vol 54 (2) ◽  
pp. 211-216 ◽  
Author(s):  
P. R. UTLEY ◽  
W. C. McCORMICK
Keyword(s):  
Crude Protein ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Reproductive Organs ◽  
Crude Fiber ◽  
Feedlot Performance ◽  
Melengestrol Acetate ◽  
Follicle Size

Sixty yearling heifers were fed to compare the response of heifers implanted with 24 mg diethylstilbestrol (DES) to the response of heifers implanted with 36 mg zeranol, heifers implanted with DES and fed 0.4 mg melengestrol acetate (MGA) per day, and heifers implanted with zeranol and fed 0.4 mg MGA per day. All heifers were fed to appetite a ground snapped corn basal diet calculated to contain 11.6% crude protein, 10.3% crude fiber, and 67.5% total digestible nutrients. Feedlot performance and carcass characteristics of heifers implanted with zeranol, heifers fed MGA in combination with DES implants, and heifers fed MGA in combination with zeranol implants were not different (P > 0.05) from those of DES implanted heifers. Reproductive organs from heifers implanted with DES or zeranol were comparable to literature values for normal reproductive organs from untreated heifers. When either of these implants was used in combination with feeding MGA, follicle size and number of heifers with functional corporea lutea were similar to values reported in the literature when MGA was fed alone.

Heavier rumen–reticulum organs in white-tailed deer (Odocoileus virginianus) is consistent with dietary bulk not quality

2018 ◽  
Vol 96 (7) ◽  
pp. 748-752 ◽  
Author(s):  
F.W. Weckerly ◽  
G. Bhaskar ◽  
A. Duarte ◽  
R.S. Luna ◽  
H.D. Starns
Keyword(s):  
Gastrointestinal Tract ◽  
Odocoileus Virginianus ◽  
Diet Quality ◽  
Crude Protein ◽  
Protein Concentration ◽  
High Energy ◽  
The Other ◽  
Organ Mass ◽  
Energy Demands ◽  
Pelleted Diet

The organs that make up the gastrointestinal tract have high energy demands. Therefore, when these organs vary in mass, they should impact metabolic requirements. Mass of the rumen–reticulum organs, the organs that comprise the largest part of the gastrointestinal tract of ruminants, might vary from bulk or nutrient availability of the diet. We examined differences in mass of the rumen–reticulum organs in white-tailed deer (Odocoileus virginianus (Zimmermann, 1780)) from two sites in Texas, USA, with different diet types. Specifically, at one site deer were fed a pelleted ration and at the other site deer consumed a natural browse diet. Accounting for body mass, deer consuming the browse diet had rumen–reticulum organ masses that were about 1.7 times heavier than deer consuming the pelleted diet. Deer consuming the browse diet also had lower diet quality, as indexed by crude protein concentration, than deer consuming the pelleted diet. The digesta loads of deer, however, were similar for the two types of diet. Our study findings are consistent with increased mass of rumen–reticulum organs from greater bulk, not diet quality. Understanding variation in rumen–reticulum organ mass has implications for understanding energy conservation in white-tailed deer.

scholarly journals The effect of complete feed to carcass characteristics and meat quality of male Bali cattle fattened in West Timor, Indonesia

2020 ◽  
Vol 13 (11) ◽  
pp. 2515-2527
Author(s):  
Paulus Klau Tahuk ◽  
Oktovianus R. Nahak ◽  
Gerson F. Bira
Keyword(s):  
Crude Protein ◽  
Carcass Characteristics ◽  
Gliricidia Sepium ◽  
High Energy ◽  
Fat Percentage ◽  
Natural Grass ◽  
Bali Cattle ◽  
West Timor ◽  
Positive Effect

Aim: This research aimed to know the effect of the use of complete feed on Bali cattle fattening performance seen from the carcass characteristics. Materials and Methods: The cattle employed in this research were 12 male Bali cattle aged between 2 and 2.5 years old based on the teeth estimation. The average initial body weight of the cattle during the research was 181.50±16.51 kg. The complete feed contained Gliricidia sepium, natural grass, ground corn, bran pollard, and rice bran which have been compiled into three types of ration of T1, T2, and T3. The T1 ration contained standard crude protein (CP) and high energy (11% CP; 72% total digestible nutrient [TDN]), and T2 contained medium protein and high energy (13% CP; 72% TDN), while T3 ration contained high protein and high energy (%15 CP; 72% TDN). Results: The meat percentage of T2 and T3 was relatively the same, but higher than T1 (p<0.05). The bone percentage and meat: A bone ratio of T2 was higher than T1; in contrast, and T3 was relatively the same with T2 and T1 (p<0.05). The weight of slaughter, carcass percentage, and weight of meat, bone, and fat were relatively the same among the treatments. Conclusion: The application of complete feed with protein source from G. sepium with CP and TDN of 13 and 72%, respectively, can improve carcass percentage and meat: A bone ratio of male Bali cattle fattening. The treatments have not had a positive effect on slaughter weight (kg), hot and cool carcass weight (kg), meat and fat weight (kg), fat percentage, and non-carcass (kg).

Performance of cattle reared on rangelands supplemented with farm-formulated diets during the dry season in Zimbabwe

2017 ◽  
Vol 57 (6) ◽  
pp. 1163
Author(s):  
J. Gusha ◽  
T. Chiuta ◽  
S. Katsande ◽  
P. I. Zvinorova ◽  
S. M. Kagande
Keyword(s):  
Body Condition ◽  
Leucaena Leucocephala ◽  
Crude Protein ◽  
Dry Season ◽  
Conception Rate ◽  
The Other ◽  
Animal Performance ◽  
Maize Stover ◽  
Protein Supplements ◽  
Formulated Diets

Feed quality in rangelands reaches an all-time low during the dry season thus affecting animal performance. The use of farm-formulated supplements is an alternative which can be adopted to minimise the effects of nutritional stress. However, the effects of supplementing nursing cows, twice a week with farm-formulated diets; on cow maintenance, calf weaning weight and conception rate is little known. Thirty indigenous Mashona cows were allocated to five treatments of a commercial supplement known as beef survival meal, urea-treated maize stover, Leucaena leucocephala meal, mixed forage meal and without supplements. The study was repeated with a new set of nursing cows each year for 3 years. Nutrient composition of treatment diets varied with Leucaena leucocephala having more crude protein than the other diets. Forage-supplemented groups had higher (P < 0.05) rate of weight increase and weaning weights with Leucaena leucocephala and beef survival meal having better results among the groups. Nursing cows that were in protein-supplemented groups had significantly higher (P < 0.05) conception rate than the group of nursing cows, which were not offered the protein supplements. We concluded that, with farm-formulated supplements given twice per week, nursing cows can maintain better body condition, wean heavier calves and successful conceive every year thus improving animal productivity.

scholarly journals Field Pea Can Be Included in Fattening Concentrate without Deleterious Effects on the Digestibility and Performance of Lambs

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 243 ◽  
Author(s):  
Sandra Lobón ◽  
Margalida Joy ◽  
Isabel Casasús ◽  
Pablo Jose Rufino-Moya ◽  
Mireia Blanco
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
Field Pea ◽  
The Other ◽  
Blood Metabolites ◽  
Ad Libitum ◽  
And Performance ◽  
Performance Trial

The inclusion of different proportions of field pea (0%, 10%, 20% and 30%) for partially replacing soybean in the fattening concentrate of lambs was studied for its impact on apparent digestibility and performance during fattening. In the in vivo digestibility trial, 12 lambs (33 kg body weight) were placed in metabolic crates for two periods and received restricted amounts of concentrate and straw. The performance trial involved 54 lambs (13.4 kg body weight) that received concentrate plus straw ad libitum from weaning to slaughter. The intake of crude protein was higher in the 0% pea group than in the other groups (p < 0.05). The inclusion of field pea did not affect the digestibility, N retained or blood metabolites. In the performance trial, most traits were not affected, although a cubic effect of field pea inclusion on hot carcass weight and dressing percentage was observed (p < 0.05). The inclusion of field pea did not affect total protein, urea or β-hydroxybutyrate concentrations but it affected creatinine and cholesterol concentrations (p < 0.05). In conclusion, field pea can constitute up to 30% of the fattening concentrate of lambs without deleterious effects on the digestibility and performance during fattening, and with minor effects on carcass characteristics.

scholarly journals Carcass Characteristics of the Libyan Purebred Mahali Goat and their Crosses with Damascus and Morcia Granada Goats

2010 ◽  
Vol 15 ◽  
pp. 21 ◽  
Author(s):  
Abdelkareem E. Ahtash ◽  
Abdulla S. Biala ◽  
Aiad F. Magid ◽  
Hamed M. Marhoun
Keyword(s):  
Carcass Characteristics ◽  
Live Weight ◽  
The Other ◽  
Carcass Weight ◽  
Meat Production ◽  
Muscle Area ◽  
Eye Muscle ◽  
Kidney Fat ◽  
Significant Superiority ◽  
Group 1

This study was conducted to evaluate the carcass characteristics of Mahali (M), Damascus (D) and Morcia Granada (G) goats and their crosses. Live weight, carcass weight, dressing-out %, rib eye muscle area, non-carcass components and kidney fat were measured. The results showed significant superiority of Damascus goats in live weight (65.8 kg), carcass weight (34.3 kg), dressing-out %( 52.1%), rib eye muscle areas (22.7 cm²) over the Mahali and Morcia Granada goats. The crossbred group (1/2 M ҳ 1/2 D) was superior in live weight (50 kg), carcass weight (24.2kg), dressing-out %( 48.4%), and rib eye muscle area (21.2cm²) over other crossbreds. The crossbred group (3⁄4D ҳ 1⁄4M) was superior in live weight (61.7kg), carcass weight (31 kg) and rib eye muscle area (21.3cm²) over the other 3⁄4 crossbreds. This study indicated that crossing between Mahali ҳ Damascus breed was beneficial for increasing live weight, carcass weight and meat production. 

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