Relationships between adipose tissue characteristics of newborn pigs and subsequent performance: II. Carcass traits at 95 and 145 kilograms live weight.

The purpose of this study was to investigate the effect of diets with different protein contents on carcass traits, plasma hormone concentration, lipogenic enzyme activities, and fatty acid (FA) composition in the adipose tissue of Iberian pigs. Twenty-four castrated male Iberian pigs (eight per feeding diet) were fed under free-range conditions with acorns and grass (FR), and in confinement with concentrated diets with standard (SP) and low-protein contents (LP) from 116.0 to 174.2 kg live weight. Backfat thickness was not affected by diet. The plasma leptin concentration was higher (p < 0.001) in the FR group than in the LP and SP groups, while insulin concentration was higher in the SP group than in the LP and FR groups. The lipogenic enzyme activities of glucose-6-phosphate dehydrogenase, malic enzyme, and glycerol-3-phosphate dehydrogenase were lower in the FR group compared to the LP and SP pigs. The activities of these enzymes were adipose-tissue-specific. No differences were found in FA composition of adipose tissue between the SP and LP groups, while the FR pigs had lower proportions of saturated FA and higher proportions of monounsaturated and polyunsaturated FA than the SP and LP pigs. In conclusion, feeding low-protein diets in Iberian pigs does not seem to affect adipose carcass traits, strengthening previous findings that indicate that this is a good strategy to improve meat and dry-cured product quality.

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Relationships among Definable Characteristics of Feeder Calves, Subsequent Performance and Carcass Traits. I. Objective Measurements

Journal of Animal Science ◽

10.2527/jas1981.5161297x ◽

1980 ◽

Vol 51 (6) ◽

pp. 1297-1305

Author(s):

W. T. Butts ◽

W. R. Backus ◽

E. R. Lidvall ◽

J. A. Corrick ◽

R. F. Montgomery

Keyword(s):

Carcass Traits ◽

Subsequent Performance ◽

Objective Measurements

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The effect of winter food level on compensatory growth of weaned, suckled calves grazed at two sward heights

Animal Science ◽

10.1017/s0003356100002397 ◽

1986 ◽

Vol 43 (2) ◽

pp. 211-223 ◽

Cited By ~ 38

Author(s):

I. A. Wright ◽

A. J. F. Russel ◽

E. A. Hunter

Keyword(s):

Weight Gain ◽

Compensatory Growth ◽

Live Weight ◽

Food Level ◽

Live Weight Gain ◽

Subsequent Performance ◽

Herbage Intake ◽

Winter Food ◽

Weight Gains ◽

Winter Feeding

ABSTRACTTwo experiments were conducted with weaned, suckled calves to investigate the effect of feeding level during the post-weaning winter on their subsequent performance when continuously grazed on pasture maintained at two sward heights. Low, medium and high levels of winter feeding resulted in winter live-weight gains of 0·31, 0·58 and 0·79 (s.e. 0·027) kg/day (P < 0·001) during the 152-day winter in experiment 1 and 0·44, 0·69 and 0·84 (s.e. 0·029) kg/day (P < 0·001) for 189 days in experiment 2. During summer (93 days in experiment 1 and 87 days in experiment 2) there was a significant effect of winter food level on performance when live-weight gains were 1·10, 1·02, 0·87 and 1·35, 1·23 and 1·19 (s.e. 0·060) kg/day for the low, medium and high winter food levels on the short and tall swards respectively in experiment 1 (P < 0·01) and 0·86, 0·66, 0·51 and 1·26, 1·18 and 0·91 (s.e. 0090) kg/day in experiment 2 (P < 0·001). The cattle showing compensatory growth had higher herbage intakes and it is postulated that this occurred because of a negative association between body fat and herbage intake. Sward height had a large positive effect on herbage intake and live-weight gain and it is concluded that for maximum intake on ryegrass swards, herbage height should be at least 8 cm. Lower levels of winter live-weight gain delayed the time to slaughter, but allowed cattle to achieve heavier carcass weights at a fixed level of fatness.It is concluded that there is no single optimum winter food level for weaned, suckled calves but that the choice will depend upon several factors, including availability of winter and summer food resources, the length of the winter feeding period, the desired date of slaughter and type of carcass to be produced.

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Effect of boars own performance on progeny fattening and carcass traits in two different environments

Biotechnology in Animal Husbandry ◽

10.2298/bah0404055b ◽

2004 ◽

Vol 20 (3-4) ◽

pp. 55-63 ◽

Cited By ~ 4

Author(s):

I. Bahelka ◽

P. Fľak ◽

Anna Lukácová

Keyword(s):

Performance Test ◽

Average Daily Gain ◽

Carcass Traits ◽

Live Weight ◽

Feed Consumption ◽

Muscle Area ◽

Eye Muscle ◽

Carcass Parameters ◽

Performance Traits ◽

Progeny Performance

The effect of own performance traits of meat breed boars on fattening and carcass parameters of progeny in two different test stations (Bucany and Nitra) was evaluated. Own performance traits of boars were average daily gain (ADG) from birth to 100 kg live weight, backfat thickness (BF) and lean meat content (LMC) in field conditions. Progeny of boars was housed in pairs (gilt and barrow) and fed standardized feed mixture semi ad libitum. Progeny test lasted from 30 to 100 kg live weight. There were evaluated following parameters: ADG and feed consumption/kg gain (FC) at test from 30 to 100 kg live weight, slaughter weight (SW), proportion of meaty cuts (PMC) proportion of ham (PHAM), eye muscle area (EMA), and BF. At Bucany and Nitra was found the effect of genotype of boars on progeny BF and/or FC respectively. Better tested boars from own performance test individually as well as a group achieved in progeny better fattening and carcass traits than worse tested boars at Bucany (+33 g ADG, -0.21 cm BF, +2.34 % PMC). Progeny performance from better evaluated boars at Nitra did not exceed the progeny performance from worse tested boars. There was found significant effect of dams on progeny performance.

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Carcass Traits and Meat Quality Characteristics of Malabari Male Kids Reared under Different Production System

Indian Journal of Animal Research ◽

10.18805/ijar.b-4192 ◽

2020 ◽

Author(s):

Chikkagoudara Kotresh Prasad ◽

John Abraham ◽

Balusami Chinnappan ◽

Roshin Anie Jose ◽

Senthil Murugan ◽

...

Keyword(s):

Body Weight ◽

Meat Quality ◽

Production System ◽

Carcass Traits ◽

Live Weight ◽

Quality Characteristics ◽

Cooking Loss ◽

Body Parts ◽

Final Body Weight ◽

The Impact

Background: The intensive rearing systems of goats needs dietary formulations that will meet animal requirements, mainly the protein and energy to allow optimum growth rate. Alternative systems to attain 15-20 kg body weight by three months of age with better meat quality is need of the hour. Broiler goat production system is most suitable system of rearing for meat goat production. The current study was conducted to examine the impact of broiler goat production system on the carcass traits and meat quality characteristics of Malabari male kids. Methods: Fourteen pre-weaned kids were randomly allotted to two treatments. Treatment-I (T1) kids were allowed to suckle thrice a day during four weeks and twice in a day during consequent weeks. Whereas in Treatment-II (T2), kids were reared intensively by providing finely ground concentrate feed mixed with equal quantity of rice gruel from a feeding bottle after 7 days of colostrum feeding from the mother. The animals were slaughtered at an age of three months and the final body weight, carcass traits like dressing percentage, weight of different body parts and meat quality parameters like pH, color, cooking loss and shear force were analysed. The proximate composition and sensory evaluation was performed. Result: Broiler goat production system could produce significantly (P less than 0.01) higher final average body weight compared to natural system. All the carcass traits were significantly (P less than 0.01) higher in T2. The broiler goat production system could double the net live weight during the same period compared to natural suckling system with higher dressing % and the chevon produced was tender with less cooking loss. Hence, this system can be recommended for chevon production in shorter period with higher dressing % and lesser cooking loss in Malabari male kids.

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Effect of docking and shearing on growth and carcass traits of fat-tailed Ossimi sheep

The Journal of Agricultural Science ◽

10.1017/s0021859600081727 ◽

1987 ◽

Vol 109 (3) ◽

pp. 513-518 ◽

Cited By ~ 7

Author(s):

I. F. M. Marai ◽

M. S. Nowar ◽

Layla B. Bahgat ◽

J. B. Owen

Keyword(s):

Weight Gain ◽

Carcass Traits ◽

Carcass Characteristics ◽

Live Weight ◽

Small Sample ◽

Body Measurements ◽

Final Phase ◽

Chest Girth ◽

Group Basis ◽

Daily Gain

SummaryThirty Ossimi lambs were used in an experiment to compare those whose tail was docked shortly after birth with controls. After weaning at 4 months of age the groups were further subdivided and two of the four groups closely shorn according to a 2 × 2 factorial design.Male lambs at 20 kg were subjected to intensive finishing until the age of 50 weeks and nine were then slaughtered to determine carcass characteristics.There was a trend for increased live-weight gain in the docked lambs in the preweaning stage (up to 16 weeks).This trend was also present, although not statistically significant, in the final phase of intensive feeding from 20 kg weight to 50 weeks. Shearing significantly improved daily gain in this final period (P < 0·05). These increases in gain were also apparently associated with improvements in efficiency, as judged on a group basis.Docking and shearing also tended to cause increases in body measurements: height, chest girth and abdomen girth in the case of docking (P < 0·05) and chest girth, chest depth and abdomen girth in the case of shearing (P < 0–05).Carcass characteristics, measured on a relatively small sample, indicated several effects of docking and shearing on carcass traits although most of these were consistent with the expected differences stemming from the higher carcass weights acheived at 50 weeks of age by docked and sheared lambs.

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