scholarly journals Performance and carcass characteristics of lambs ½ Dorper + ½ Santa Inês, slaughtered with different thicknesses of subcutaneous fat

2018 ◽  
Vol 19 (1) ◽  
pp. 125-135 ◽  
Author(s):  
Urias Fagner Santos Nascimento ◽  
Gladston Rafael de Arruda Santos ◽  
Camilo Santos Azevedo ◽  
Francisco de Assis Fonseca Macedo ◽  
Telisson Ribeiro Gonçalves ◽  
...  
Keyword(s):  
Body Condition Score ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Final Body Weight ◽  
Total Weight Gain ◽  
Condition Score ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Santa Inês ◽  
Compactness Index

SUMMARY The aim of this study was to evaluate the effect of subcutaneous fat thickness (SFT) on slaughter in lambs ½ Dorper + ½ Santa Inês (DSI) on performance, carcass characteristics and commercial cuts. It was used twenty-four lambs, slaughtered with 2mm, 3mm and 4mm SFT. There was an effect of SFT on performance: for days of confinement (2mm = 51.38, 3mm = 66.50, 4mm = 91.63 days), age at slaughter (2mm = 139.38, 3mm = 159.88, 4mm = 171.00 days), final body weight (2mm = 33.50, 3mm = 42.81, 4mm = 46.19 kg), total weight gain (2mm = 18.75, 3mm = 25.08, 4mm = (2mm = 0.44, 3mm = 0.39, 4mm = 0.28kg), slaughter weight (2mm = 32.76, 3mm = 39.79, 4mm = 44.88 kg), body condition score (2mm = 2.97, 3mm = 3.13, 4mm = 3.56); for carcass characteristics: warm carcass weight (2mm = 15.33, 3mm = 19.16, 4mm = 21.90 kg) and cold (2mm = 15.03, 3mm = 18.75, 4mm = 21.47), cooling losses (2mm = 0.00234; 3mm = 0.00333; 4mm = 0.00201 kg), carcass yields: in the refrigerator (2mm=46,79; 3mm=48,30; 4mm=48,79%); commercial (2mm = 45.88, 3mm = 47.25, 4mm = 47.82%) and true (2mm = 52.93, 3mm = 54.51, 4mm = 55.67%); carcass compactness index (2mm= 0,250; 3mm=0,30; 4mm=0,33 kg/cm) for cut weights; neck (2mm=0,44; 3mm=0,55; 4mm=0,56 kg); palette (2mm=1,38; 3mm=1,61; 4mm=2,14 kg), flank steak (2mm=2,16; 3mm=2,73; 4mm=3,19 kg), loin (2mm=0,93; 3mm=1,14; 4mm=1,25 kg), and leg (2mm=2,68; 3mm=3,20, 4mm=3,76 kg). For the tissue composition of only the muscular cuts of the neck (2mm = 50.24, 3mm = 51.44, 4mm = 55.34%), bone of the neck (2mm = 30.24, 3mm = 29.63, 4mm = 25.91%), of the loin (2mm=15,05; 3mm=24,63; 4mm=24,71%) and the leg (2mm=11,38; 3mm=13,33; 4mm=13,13%), they presented differences between the SFT (p> 0.05). It is recommended to slaughter lambs ½ Dorper + ½ Santa Inês with 3mm of SFT.

Validation of body condition score based on subcutaneous fat thickness measurements in primiparous Gyr cows

2021 ◽  
Author(s):  
Catiúcia Oliveira Miranda ◽  
Ana Carolina Almeida Rollo de Paz ◽  
Ricardo Dutra do Bem ◽  
Glayk Humberto Vilela Barbosa ◽  
Maria Eugênia Zerlotti Mercadante ◽  
...  
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Subcutaneous Fat ◽  
Condition Score ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Thickness Measurements

Subcutaneous fat thickness at slaughter in castrated and non-castrated Santa Inês and Dorper lambs and its influence on meat and carcass quality

2021 ◽  
pp. 104694
Author(s):  
Francisco Fernandes Junior ◽  
Amanda de Freitas Pena ◽  
Fernando Augusto Grandis ◽  
Natalia Albieri Koritiaki ◽  
Fabíola Cristine de Almeida Rego ◽  
...  
Keyword(s):  
Subcutaneous Fat ◽  
Carcass Quality ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Santa Inês

scholarly journals PSII-24 Performance, carcass and meat quality of castrated and intact Dorper lambs slaughtered at different body condition scores

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 170-171
Author(s):  
Edson Luis de A Ribeiro ◽  
Francisco Fernandes Jr ◽  
Camila Constantino ◽  
Fernando Augusto Grandis ◽  
Natália Albieri Koritiaki ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Final Body Weight ◽  
Condition Score ◽  
Fat Thickness ◽  
Daily Gain ◽  
Body Condition Scores

Abstract This study was conducted with the objective of evaluating the performance, carcass and meat characteristics of castrated and intact Dorper male lambs slaughtered at three different body condition scores. Thirty-five lambs, approximately 3 months old, 21.6 ± 4.0 kg of body weight and 3.1 ± 0.5 of body condition score (BCS), were used. The BCS scale used varied from 1.0 (very thin) to 5.0 (very fat). Four weeks prior to the experiment, 17 lambs were castrated. Lambs were further divided into three groups, according to the criteria for slaughter: BCS of 3.5, 4.0 and 4.5. All animals received the same diet. BCS were achieved after 27, 84 and 130 days in feedlot, respectively. There were no interactions (P > 0.05) between sexual conditions and slaughter criteria. Average daily gain of weight (ADG) was different (P < 0.05) for the three BCS (average of 0.263). However, final body weight (28.6 ± 1.7; 42.7 ± 1.8 and 56.8 ± 1.7 kg) and back fat thickness (0.5 ± 0.5; 4.2 ± 0.5 and 7.3 ± 0.5 mm) were different (P < 0.05) among BCS criteria, panelists found that meats from lambs slaughtered with greater fat content were less (P < 0.05) desirable. We can conclude by the performance and meat results that it is better to slaughter Dorper lambs with BCS with no more than 4.0, or 4.2 mm of back fat cover, and for the best acceptability of the meat the lambs should be castrated.

Effects of dietary protein and β-agonist on growth and fat deposition in prepubertal lambs

1995 ◽  
Vol 75 (2) ◽  
pp. 219-224 ◽  
Author(s):  
J. Zhang ◽  
D. G. Grieve ◽  
B. L. Coomber
Keyword(s):  
Dietary Protein ◽  
Subcutaneous Fat ◽  
Fat Deposition ◽  
Final Body Weight ◽  
Target Weight ◽  
Gland Weight ◽  
Two Factors ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Protein Treatment

Weaned female lambs were used to study the effects of dietary protein (15 or 20%) and β-agonist (L-644,969: 0 mg kg−1 or 1 mg kg−1) on fat deposition between weaning and puberty. Lambs were fed pelleted concentrate plus 200 g hay d−1 to achieve a target weight gain of 260 g d−1. The trial continued for 102 d with dietary protein treatment starting on day 1 and β-agonist starting on day 20. Comparisons were made between the two levels in each of the two factors when there was no interaction. Carcass fat was reduced by 19.1% (P < 0.01) and carcass protein was increased by 15.8% (P < 0.01) in lambs fed the β-agonist. Carcass fat and protein were not affected by dietary protein. There was a nonsignificant trend to lower kidney-pelvic fat and subcutaneous fat thickness with the β-agonist (P > 0.1). Treatment did not affect the total mammary-gland weight, expressed as a proportion of final body weight. Neither the diameter nor the number of fat cells in kidney–pelvic fat and the MGFP were affected by dietary protein or β-agonist. Results indicate that the β-agonist is effective in the control of fat deposition other than that in the MGFP in rapidly growing female lambs. However, there was no apparent effect of dietary protein on adipose tissues. Key words: Lambs, β-agonist, dietary protein, fat deposition

scholarly journals Carcass characteristics of immunocastrated steers finished on diets with different energy patterns

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
A.F. De Moura ◽  
D.C.A. Filho ◽  
I.L. Brondani ◽  
L.B. Pereira ◽  
G. Joner ◽  
...  
Keyword(s):  
Energy Levels ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Dietary Energy ◽  
Marbling Score ◽  
Randomized Design ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Completely Randomized Design ◽  
Dietary Treatments

The aim of this study was to evaluate the effects of various dietary energy levels on the carcass and meat characteristics of feedlot-finished steers. A total of 27 purebred and crossbred Charolais and Nellore steers were used, with a mean initial age of 22 months and weight of 253 kg. The animals were allotted to a completely randomized design with three treatments and nine replicates each. Dietary treatments were arranged so that the average forage to concentrate ratio (FCR) was equivalent to that of a constant FCR treatment. The treatments consisted of CT (constant FCR at 60 to 40), CT5 (starting with 70: 30 FCR and finishing with 50: 50 FCR, that is, a mean overall FCR of 60: 40), and CT10 (starting with 80: 20 FCR and finishing with 40: 60, that is, a mean overall FCR of 60: 40). The dietary treatments did not affect slaughter weight, carcass weight, carcass conformation, physiological maturity, subcutaneous fat thickness, ribeye area, marbling score, and carcass measurements or the yield of commercial cuts. Chilling loss was higher in CT10 steers (2.41%) than in CT (2.26%) and CT5 (2.15%).

scholarly journals In vivo biometry and carcass characteristics of lambs in different finishing systems

2019 ◽  
Vol 40 (2) ◽  
pp. 855
Author(s):  
Juliano Henriques da Motta ◽  
Cleber Cassol Pires ◽  
Ana Maria Osorio Dias ◽  
Verônica Gindri Manzoni ◽  
Andressa Ana Martins ◽  
...  
Keyword(s):  
Soybean Meal ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Tissue Composition ◽  
In Vivo Measurements ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Carcass Cuts

The aim of this study was to assess the influence of different finishing systems on the in vivo measurements, quantitative and qualitative carcass characteristics, commercial cut ratio, and shoulder tissue composition of lambs. Thirty-two male lambs were distributed in four finishing systems with eight replications each, as follows: suckling lambs on pasture; suckling lambs in confinement, with access to creep-feeding containing corn bran and soybean meal; weaned lambs fed roughage, characterized by ad libitum supply of alfalfa hay; and weaned lambs fed concentrate, composed of oat grain and soybean meal. The lambs were slaughtered as they reached the pre-set live weight at slaughtering of 30 kg. Most of the in vivo biometry variables were not significant (P > 0.05) when comparing the finishing systems, except for hindlimb height and thoracic perimeter. Regarding the quantitative carcass characteristics, all variables differed (P < 0.05) between systems, except for carcass length, leg width, and subcutaneous fat thickness. For the qualitative carcass characteristics, only the fatness and carcass conformation presented significant differences (P < 0.05). Most in vivo measurements and the proportion of carcass cuts were not influenced by finishing systems. Weaned lambs fed an exclusive concentrate diet presented leaner carcasses with an inferior conformation when compared to the other finishing systems. Suckling lambs in confinement presented shoulders with a higher fat deposition when compared to those weaned. Suckling lambs both on pasture and in confinement presented a superiority in the quantitative carcass characteristics when compared to weaned lambs.

scholarly journals PSXII-17 Fiber content in diets for feedlot lambs: carcass characteristics

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 422-423
Author(s):  
Janaina S Biava ◽  
Nathalia R Eckermann ◽  
Thamires U Sturion ◽  
Daniel M Polizel ◽  
Paulo Dias Junior ◽  
...  
Keyword(s):  
Block Design ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Carcass Weight ◽  
Carcass Yield ◽  
Randomized Complete Block Design ◽  
Quadratic Response ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness ◽  
Feedlot Lambs

Abstract The objectives of this trial were to evaluate the effects of levels of fiber in high-grain diets on carcass characteristics of feedlot lambs. Fifty-eight Dorper x Santa Inês ram lambs (initial BW 20.7 ± 1.19 kg and 75 ± 10.83 d old) were assigned to a randomized complete block design. The treatments were defined by the fiber (“Coastcross” hay) content in the diets (CP: 16,12% ± 0.92): 0F: no forage diet (NDF: 10.4%); 5F: 5% of forage (NDF: 12.1%); 10F: 10% of forage (NDF: 15.0%); 15F: 15% of forage (NDF: 15.5%); 20F: 20% of forage (NDF: 20.8%) and 25F: 25% of forage (NDF: 23.5%). The experiment lasted 89 days, at the end of this time, the animals were slaughtered (169 ± 10.83 d old) to evaluate carcass characteristics. There was a quadratic response for slaughter BW (0F: 46.3; 5F: 48.1; 10F: 49.4; 15F: 50.3; 20F: 48.5; 25F: 43.3 kg; P &lt; 0.01), hot carcass weight (0F: 24.8; 5F: 25.6; 10F: 26.0; 15F: 25.7; 20F: 24.3; 25F: 21.8 kg; P = 0.01), cold carcass weight (0F: 24.3; 5F: 25.1; 10F: 25.4; 15F: 25.1; 20F: 23.8; 25F: 21.2 kg; P = 0.01) and longissimus dorsis area (0F: 16.3; 5F: 16.5; 10F: 17.4; 15F: 16.5; 20F: 16.0; 25F: 15.1 cm2; P = 0.04). There was a linear decrease in the hot carcass yield (0F: 53.0; 5F: 53.3; 10F: 52.5; 15F: 50.9; 20F: 50.1; 25F: 50.2%; P &lt; 0.01), cold carcass yield (0F: 52.0; 5F: 52.2; 10F: 51.4; 15F: 49.8; 20F: 49.0; 25F: 48.9%; P &lt; 0.01) and body wall thickness (0F: 16.2; 5F: 17.0; 10F: 16.3; 15F: 16.3; 20F: 15.1; 25F: 13.6 kg; P = 0.01). There was no effect on subcutaneous fat thickness. In conclusion, the diet with up to 5% of forage allowed higher carcass yield; however, the heavier carcasses were produced by the lambs that received 10F diet.

scholarly journals Influence of subcutaneous fat thickness on the carcass characteristics and meat quality of beef cattle

2017 ◽  
Vol 48 (1) ◽  
Author(s):  
Bruna Boito ◽  
Fernando Kuss ◽  
Luis Fernando Glasenapp de Menezes ◽  
Eduardo Lisbinski ◽  
Micheli de Paris ◽  
...  
Keyword(s):  
Meat Quality ◽  
Meta Analysis ◽  
Subcutaneous Fat ◽  
Meat Products ◽  
Carcass Characteristics ◽  
Direct Influence ◽  
Bone Fraction ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness

ABSTRACT: The objective of this research was to examine the effect of subcutaneous fat thickness (SFT) on carcass characteristics and meat quality in 24-month-old British and crossbred British steers finished in feedlot systems. It was assessed using meta-analysis performed on data that was extracted from 46 published studies and comprising a total of 2,695 experimental units. We found that SFT was influenced by and increased linearly with hot carcass weights (HCWs) and cold carcass weights (CCWs) and their yields; moreover, the bone fraction decreased whereas the muscle and fat fractions increased with higher levels of SFT. No significant differences were detected in meat quality variables. Thus, SFT appeared to have a direct influence on HCW, CCW, and the weight and yield of bone, muscle, and fat of castrated steers. A uniform fat thickness level of 6.0 mm SFT was determined to be the standard of quality of carcasses and meat products for consumers.

scholarly journals EFEITO DOS NÍVEIS DE SUPLEMENTAÇÃO NO DESEMPENHO DE BOVINOS EM SISTEMA DE SEMI-CONFINAMENTO

Nativa ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 813
Author(s):  
Felipe Cecconello Bento ◽  
Edgar Antonio Rovani ◽  
Gabriel Ferreira Mesquita ◽  
Lucas Roberto Batista Ruiz ◽  
Maria Isabel Leite Da Silva ◽  
...  
Keyword(s):  
Weight Gain ◽  
Subcutaneous Fat ◽  
Live Weight ◽  
Panicum Maximum ◽  
Concentrate Supplementation ◽  
Randomized Design ◽  
Total Weight Gain ◽  
Body Weights ◽  
Subcutaneous Fat Thickness ◽  
Fat Thickness

Objetivou-se avaliar o efeito dos níveis de suplementação sobre o desempenho de bovinos em sistema de terminação no período das águas em pastagem de capim Panicum maximum cv. Mombaça e sua viabilidade econômica. No experimento foram utilizados 68 bovinos não castrados da raça Nelore, sendo conduzido segundo delineamento inteiramente casualizado, com dois níveis de suplementação de concentrado na proporção de 1,2% e 1,8% peso vivo (PV) com base na matéria seca (MS). Os níveis de suplementação não diferiram nos pesos corporais dos animais nas pesagens feitas durante o experimento e final. Os animais suplementados com 1,8% do PV obtiveram maior ganho de peso total, área de olho de lombo final e espessura de gordura subcutâneo final. Os níveis de suplemento não influenciaram significativamente no peso de carcaça quente, conformação da carcaça e rendimento da carcaça. Os animais que receberam o maior nível de suplementação tiveram maior acabamento da carcaça. O maior nível de suplementação gerou maior custo inicial, médio, final e maior custo por ganho de peso dos animais. Assim, a suplementação com 1,2% do PV resulta em menor custo por quilo de carne produzida, sendo o mais indicado para bovinos terminados a pasto.Palavras-chave: análise econômica, confinamento a pasto, Panicum maximum cv. Mombaça, pastejo, terminação. EFFECT OF SUPPLEMENTATION LEVELS ON BEEF CATTLE PERFORMANCE IN SEMI-CONFINED SYSTEMS ABSTRACT: The objective of this study was to evaluate the effect of the supplementation levels on the performance of cattle in the finishing system in the period of waters in pasture of Panicum maximum cv. Mombasa and its economic viability. In the experiment, 68 Nellore bulls were used, and were conducted in a completely randomized design with two levels of concentrate supplementation at the ratio of 1.2% and 1.8% live weight (LW) based on the dry matter (DM). Supplementation levels did not differ in body weights of animals during weighing done during the experiment and final. The animals supplemented with 1.8% of the LW obtained greater total weight gain, final loin eye area and final subcutaneous fat thickness. Supplement levels did not significantly influence hot carcass weight, carcass conformation, and carcass yield. The animals that received the highest level of supplementation had a better finishing of the carcass. The higher level of supplementation generated higher initial, average, final cost and higher cost for weight gain of the animals. Thus, the supplementation with 1.2% of the LW results in a lower cost per kilogram of meat produced, being the most suitable for beef cattle.Keywords: economic analysis, feedlot in pasture, Panicum maximum cv. Mombaça, grazing, termination.

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