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.

scholarly journals PSII-23 Meat quality of Santa Inês lambs slaughtered at different backfat thickness

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 170-170
Author(s):  
Edson Luis de A Ribeiro ◽  
Francisco Fernandes Jr ◽  
Camila Constantino ◽  
Fernando Augusto Grandis ◽  
Natália Albieri Koritiaki ◽  
...  
Keyword(s):  
Body Weight ◽  
Average Daily Gain ◽  
Subcutaneous Fat ◽  
The Other ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Fat Thickness ◽  
Santa Inês ◽  
Daily Gain

Abstract The objective of this study was to evaluate the performance and meat characteristics of castrated and intact Santa Inês male lambs slaughtered at three different thicknesses of subcutaneous fat. Thirty-four lambs, approximately 3 months of age, 19.37 ± 3.73 kg of body weight were used. Four weeks prior to the experiment, half of the animals were castrated. Lambs were further divided into three groups, according to the criteria for slaughter: fat thicknesses of 1, 3 and 6 mm; measured with an ultrasound equipment. All animals received the same diet. Criteria of 1 and 3 mm were achieved after 39 and 84 days in feedlot. As the criterion of 6 mm was not attained up to 130 days of confinement, lambs were slaughtered at that time, with 4 mm of fat thickness. Fat thickness measured with a caliper on the carcasses were 0.87, 3.11 and 3.60 mm. There were no interactions (P > 0.05) between sexual conditions and slaughter criteria. Average daily gain was similar (P > 0.05). Among criteria (average of 0.267 ± 0.052 kg/day). However, final body weight (29.94 ± 2.03; 40.42 ± 2.67 and 53.85 ± 2.03 kg) and feed conversion (4.17 ± 0.39; 4.71 ± 0.43 and 6.01 ± 0.39) were different (P0.05) among criteria, panelists found that lambs slaughtered with 3.6 mm of fat thickness were less (P < 0.05) desirable. Average daily gain (0.283 ± 0.013 vs 0.247 ± 0.012 kg) was greater (P < 0.05) for intact than castrated lambs; however, the meat of intact lambs was less desirable. The other traits were similar for both sexual conditions. We can conclude by the performance and meat results that it is better to slaughter Santa Inês lambs with 3 mm of fat cover, and for the best acceptability of the meat the lambs should be castrated.

scholarly journals PSIV-B-28 Late-Breaking: Performance and carcass quality of Nelore bull’s progenies with contrasting traits for precocity, growth and muscularity

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 319-321
Author(s):  
Taiane S Martins ◽  
Juliana Silva ◽  
Lenise Mueller ◽  
Tamyres Amorim ◽  
Annelise Aila G Lobo ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Average Daily Gain ◽  
Backfat Thickness ◽  
Longissimus Muscle ◽  
Muscle Area ◽  
Final Body Weight ◽  
Fat Thickness ◽  
Nelore Cattle ◽  
Daily Gain

Abstract The goal of this study was to evaluate the performance and the carcass traits of Nelore cattle progenies from bulls selected by contrasting traits for precocity, growth and muscularity, through the Expected Progeny Difference (EPD). One hundred and five Nelore bulls (initial weight of 350kg±15kg) and 20 months of age were confined and fed with same diet (73% of concentrate). Thirty-two animals were selected to create the contrasting groups for precocity, growth and muscularity (16 animals assigned as a low EPD group - LEPD and 16 animals assigned as a high EPD group - HEPD), based on the EPD of their parents. The ribeye area and backfat thickness were performed by ultrasonography of 12–13th rib fat thickness and longissimus muscle area (LMA), as well as rump fat thickness (RF) measurements. Animals were harvested after 100 days and during the deboning, meat cuts were weight for cutting yield. The animals selected for the HEPD group had greater average daily gain (P = 0.006), which can be explained by the higher feed intake (P = 0.006). However, there are no difference between groups for the final body weight (P = 0.254) and feed efficiency (P = 0.715). The LEPD group presented higher dressing percentage (P = 0.028). Although the groups evaluated did not presented difference in LMA (P = 0.329) and weight of longissimus muscle (P = 0.480), the weight of rump displayed heaviest in the HEPD (P = 0.037). There was no difference between groups for RF (P = 0.086). Nevertheless, backfat thickness was higher in HEPD group (P = 0.006). The present study indicates that Nelore cattle progenies, with parents displaying higher potential for precocity, growth, and muscularity, show greater backfat thickness and weightiest of rump than the other genetic backgrounds. Thanks to FAPESP for the scholarship (Grant # 2017/02349–1).

scholarly journals Effects of parity order on performance, metabolic, and hormonal parameters of grazing beef cows during pre-calving and lactation periods

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Matheus Fellipe de Lana Ferreira ◽  
Luciana Navajas Rennó ◽  
Isabela Iria Rodrigues ◽  
Edenio Detmann ◽  
Mário Fonseca Paulino ◽  
...  
Keyword(s):  
Body Condition ◽  
Metabolic Profile ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Beef Cows ◽  
Lactation Period ◽  
Stage Of Lactation ◽  
Esterified Fatty Acids ◽  
Condition Score ◽  
Daily Gain

Abstract Background Metabolic profile evaluation is a tool widely used in ruminant nutrition as metabolic cues that relate nutrition to physiology. Metabolic and hormonal traits change during pre-partum and lactation according to parity in dairy cows, but studies of beef cows under grazing are scarce. The present study aimed to evaluate how metabolic and hormonal traits change over time, their relationship to performance, and determine if these factors differ according to the parity order of grazing beef cows. Thirty-six pregnant Nellore cows (12 nulliparous, 12 primiparous, and 12 multiparous) were used. The study started at 60 d prepartum until 203 d of lactation. Results The initial body weight (BW) and final BW were higher for multiparous cows (P > 0.05). An interaction occurred between parity and day (P < .0001) for body condition score. Nulliparous and primiparous body condition score were reduced from − 60 prepartum to 30 postpartum, then stabilized 60 postpartum (P < 0.05), while multiparous maintained body condition score from − 60 days until 60 days postpartum (P > 0.05). Calf BW, final BW, and average daily gain did not differ between parities (P > 0.05). Effect of day (P < 0.05) was detected for non-esterified fatty acids, triglycerides, total cholesterol, LDL, VLDL, progesterone, and insulin. An interaction was observed between parity and days for glucose, HDL, β-hydroxybutyrate, creatinine and IGF-1 (P < 0.05). Parity affected serum urea nitrogen, total proteins, albumin, and globulins (P < 0.05). Parity and day relative to calving did not impact total T3 and T4 (P > 0.05). Conclusions Hormonal and metabolic profile is strongly influenced by the stage of lactation. Time effects (pre-partum and lactation period) were more pronounced in nulliparous since they displayed more unbalanced metabolic and hormonal traits and lowered BCS pre- and postpartum.

scholarly journals Estimating fat reserves in Rasa Aragonesa ewes: A comparison of different methods

2003 ◽  
Vol 83 (4) ◽  
pp. 695-701 ◽  
Author(s):  
J. A. Mendizabal ◽  
R. Delfa ◽  
A. Arana ◽  
P. Eguinoa ◽  
C. González ◽  
...  
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Fat Tissue ◽  
Multiple Regressions ◽  
Fat Depots ◽  
Fat Reserves ◽  
Condition Score ◽  
Fat Thickness ◽  
Body Condition Scores

Four pre-slaughter measurements, liveweight (LW), body condition score (BCS) and fat thickness, measured by ultrasound, in the lumbar (FTL) and sternal regions (FTS), and four post-slaughter measurements, empty liveweight (ELW), hot carcass weight (HCW) and diameter of adipocytes in subcutaneous (DSC) and omental (DOM) fat depots¸ were used to predict the weight of fat in the omental (OM), mesenteric (MES), perirenal (PR), subcutaneous (SC) and intermuscular (IM) depots of ewes. Linear and multiple regressions were fitted to data from 42 adult, non-pregnant and non-lactating Rasa Aragonesa ewes, with liveweights between 29.8 and 79.2 kg and body condition scores between 0.75 and 4.5. Using a single parameter, ELW and HCW gave the most accurate predictions of the total depot fat (R2 = 0.88 and 0.90, RSD = 1.571 and 1.484 kg, respectively). Multiple regressions predicted total weight of fat depots from the pre-slaughter variables LW, BCS and FTS with an R2 value of 0.92 (RSD=1.317 kg). This result confirms the utility of using in vivo measures as fat reserve predictors in Rasa Aragonesa ewes. Key words: Fat tissue, liveweight, body condition score, adipocytes, ultrasound, ewes

Relationship of Age, Body Condition Score and Rump Fat Thickness with Semen Quality of Murrah Buffalo Breeding Bulls

2018 ◽  
Vol 8 (5) ◽  
pp. 110
Author(s):  
Satendra Yadav ◽  
Pawan Singh ◽  
Mukesh Bhakat ◽  
Tushar Mohanty ◽  
Ajeet Kumar ◽  
...  
Keyword(s):  
Body Condition ◽  
Semen Quality ◽  
Body Condition Score ◽  
Murrah Buffalo ◽  
Condition Score ◽  
Fat Thickness ◽  
Relationship Of

scholarly journals Evaluation of offspring of dairy sheep given water supplemented with crude glycerin during pregnancy and lactation

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2567
Author(s):  
Hemilly Cristina Menezes Sá ◽  
Iran Borges ◽  
Gilberto De Lima Macedo Junior ◽  
Felipe Santiago Santos ◽  
Luigi Francis Lima Cavalcanti ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Body Condition Score ◽  
Live Weight ◽  
The Body ◽  
Crude Glycerin ◽  
Body Measurements ◽  
Condition Score ◽  
Pregnancy And Lactation ◽  
Body Condition Scores

The objective of this study was to evaluate the effects of crude glycerin (CG) supplementation of dairy ewes during pregnancy and early lactation on the body weight and measurements of offspring from birth to weaning. Twenty-four lambs from 24 Lacaune x East Friesian genotype ewes were evaluated. The sheep were distributed in four treatments that differed in crude glycerin supplementation of 0%, 1.5%, 3.0%, and 4.5%, as well as the concomitant adjustment of dry matter and water intake. Body measurements of lambs were recorded every two weeks from birth until weaning. Body weight was recorded daily. Multiple regression analysis revealed that supplementation with CG explained 5.2% of the variation in the weight of lambs at birth (LW), accompanied by the body condition score of the ewe (12.3%), sex of lamb (19.2%), and live weight of the ewes (26.5%); r2 was 63%. According to the predictions of the model adjusted for simulated scenarios, the leanest lambs were derived from ewes weighing between 40 and 50 kg, with body condition scores from 4 to 5, and that did not receive CG at intermediate levels. Heavier lambs, with LW above 5.5 kg, were derived from ewes that weighed between 80 to 90 kg with low body condition scores of 3, and that received 1.5% CG. Supplementation with CG between 2% and 4% improves the weight of the lambs at birth. Body measurements of lambs were not influenced by dietary supplementation of ewes with CG.

Performance and metabolic status of grazing beef heifers receiving increasing protein supplementation pre- and postpartum

2019 ◽  
Vol 59 (7) ◽  
pp. 1244 ◽  
Author(s):  
Deilen Sotelo ◽  
Mário Fonseca Paulino ◽  
Luciana Navajas Rennó ◽  
Edenio Detmann ◽  
Roman Maza Ortega ◽  
...  
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Protein Supplementation ◽  
Metabolic Status ◽  
Protein Supplement ◽  
Beef Heifers ◽  
Condition Score ◽  
Mineral Mixture ◽  
Daily Gain

The objective of the present study was to evaluate the effect of increasing levels of prepartum and postpartum protein supplementation on nutrient intake and digestibility, productive performance and metabolic status of beef heifers on tropical pasture. Twenty-eight pregnant beef heifers with bodyweight and body condition score of 459.7 ± 6.8 kg and 5.8 ± 0.10 respectively, were used. The experiment was performed according to a completely randomised design, with the following four treatments: 0.0, 0.4, 0.8 and 1.2 kg/animal.day of protein supplement containing 25% crude protein. All animals received a mineral mixture ad libitum. The experiment lasted 210 days, divided into three experimental periods. The supplementation level increased the intake of all evaluated nutrients, digestibility of organic matter, neutral detergent fibre corrected for ash and protein, as well as higher average daily gain prepartum and bodyweight of calves at birth (P &lt; 0.05). Protein supplement at the levels evaluated did not affect body condition score (P &gt; 0.05). An interaction effect between treatment × days in relation to calving occurred for concentrations of serum urea nitrogen, total proteins, albumin and globulins (P &lt; 0.05). Supplementation did not affect glucose, triglyceride, non-esterified fatty acids, β-hydroxybutyrate or progesterone (P &gt; 0.05). In conclusion, supply of up to 1.2 kg/day of protein supplement for grazing beef heifers optimises forage intake and average daily gain before calving, and improves the indicators of the protein status.

Relationships between body condition score, body weight and internal fat deposits in Latxa ewes

1997 ◽  
Vol 65 (1) ◽  
pp. 63-69 ◽  
Author(s):  
L. M. Oregui ◽  
D. Gabiña ◽  
M. S. Vicente ◽  
M. V. Bravo ◽  
T. Treacher
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Body Condition Score ◽  
Correlation Coefficients ◽  
Mating Period ◽  
Fat Deposits ◽  
Mesenteric Fat ◽  
Condition Score ◽  
Fat Thickness ◽  
The Relationship

AbstractThe relationships between body weight (BW), body condition score (BCS) and internal fat deposits were studied in Latxa dairy ewes. In 2 years, the BW and BCS of 20% of the ewes in 14 flocks were recorded at the beginning of the mating period (pre-mating), and in the 1st month of lactation (post lambing). BW increased with age (BW = 54·05 × (1-e−0·988 × age), and the mature weight was not reached until 4 years, after which weight did not differ between pre-mating and post-lambing periods. Body condition score, however, differed between the two periods. The regression coefficients (b) of BW on BCS, when flock-year and age were included in the regressions, differed significantly (P < 0·05) in the pre-mating and post-lambing periods, and were 5·3 (s.e. 0·31) and 6·3 (s.e. 0·43) kg per unit BCS, respectively. The correlation coefficients (r) were 0·77 and 0·71 respectively, compared with 0·42 and 0·38 when the flock-year and age of the ewes were not included in the regression.Thirty-seven of these ewes, with BCS between 0·75 and 4·00, were slaughtered, the weights of omental, mesenteric and kidney and channel fat recorded, and the lumbar fat thickness assessed at the last rib. The regressions between the weight of fat deposits and lumbar fat thickness and BW and BCS fitted to semi-logarithmic equations, except for mesenteric fat, in which the relationship was linear. Body condition score was a better predictor than BW for individual fat deposits, with proportionately 0·81 to 0·83 of the variation in the weight of the deposits accounted for by variation in BCS and 0·57 to 070 by variation in BW.

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