Comparative Study of the Growth and Carcass Characteristics of the Nigerian Indigenous and Large White Pigs

2007 ◽  
Vol 1 (2) ◽  
pp. 57-66
Author(s):  
N.J. Okeudo ◽  
N.O. Aladi ◽  
I.C. Okoli ◽  
E.C. Akanno
Keyword(s):  
Comparative Study ◽  
Carcass Characteristics ◽  
Large White

Studies on Belgian Pietrain pigs 2. A comparison of growth and carcass characteristics of Pietrain used in three breed crosses with Landrace, Large White and Hampshire breeds

1972 ◽  
Vol 15 (1) ◽  
pp. 11-19 ◽  
Author(s):  
M. K. Curran ◽  
I. J. Lean ◽  
J. E. Duckworth ◽  
W. Holmes
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Consumption ◽  
Unit Weight ◽  
Large White ◽  
Lean Meat ◽  
Live Weight Gain ◽  
Breed Crosses

SUMMARY1. The growth, feed consumption per unit weight gain, carcass characteristics and some aspects of meat quality were studied in two trials with crosses derived from Landrace (L), Pietrain (P), Hampshire (H) and Large White (LW) breeds.2. In Trial 1, 96 pigs of both pure Landrace and LW(× (L♀ × P♂)♂ origin were studied up to slaughter weights of 64 and 91 kg live weight. In Trial 2, Landrace, LW♀ × (L♀ × P♂)♂ and LW ♂x (P♀x L♂)♂, (H♀ × P♂ × L♂ and (H♀ × P♂)♀ × LW♂ pigs were compared up to 91 kg live weight using 48 pigs of each type.3. All crossbred types showed better economy of production than Landrace when assessed by live-weight gain and feed consumption per unit weight gain. Their carcasses contained greater quantities of lean meat and similar quantities of rind, bone and fat than Landrace at comparable weights, but they exhibited a variable tendency to poorer meat quality. LW × (L × P) and LW × (P × L) carcasses at 91 kg live weight were shorter than Landrace; 4% and 14% of pigs in trials 1 and 2 respectively were less than the currently acceptable length of bacon pigs (775 mm). (H × P) × LW and (H×P)×L carcasses at this weight were much shorter; 34% and 38% respectively were less than 775 mm.

Meat production from pigs which have farrowed. 2. Carcass characteristics

1975 ◽  
Vol 20 (1) ◽  
pp. 123-131 ◽  
Author(s):  
P. H. Brooks ◽  
D. J. A. Cole ◽  
W. J. N. Jennings
Keyword(s):  
Young Adult ◽  
Meat Quality ◽  
Adult Female ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Control Group ◽  
Meat Production ◽  
Large White ◽  
Treatment Groups ◽  
Significant Difference

SUMMARYThe carcass characteristics of young adult female pigs (gilts) slaughtered after weaning their first litters have been investigated using three groups of 19 Landrace × (Landrace×Large White) gilts. In two treatment groups gilts were mated at their pubertal oestrus and suckled their piglets for 5 to 11 and 35 to 42 days respectively. These gilts were slaughtered on average 10 days after weaning. A third control group consisted of unmated gilts slaughtered at 118 kg live weight.There was no significant difference in the killing-out percentage for the three groups. The carcasses of the gilts which farrowed contained significantly less fat (P<0·001) than those of the unmated controls. The carcasses of the farrowed gilts had significantly lighter middle sections (P<0·001) and significantly heavier shoulders (P<0·001) than the controls.Despite the variations in tissue yield and distribution, the yield of prime joints for the gilts which had farrowed was only 0·62 percentage units less than that of the controls.No commercially significant variations between groups in meat quality were observed.

Index selection for improved growth and carcass characteristics in a population of Large White pigs

1988 ◽  
Vol 46 (2) ◽  
pp. 265-275 ◽  
Author(s):  
M. Ellis ◽  
J. P. Chadwick ◽  
W. C. Smith ◽  
R. Laird
Keyword(s):  
Carcass Characteristics ◽  
Live Weight ◽  
Conversion Ratio ◽  
Index Selection ◽  
Food Conversion ◽  
Genetic Progress ◽  
Large White ◽  
Selection For ◽  
On Farm ◽  
Ad Libitum Feeding

AbstractAn experiment was carried out over 11 years to investigate selection for economy of production and carcass lean content under ad libitum feeding in Large White pigs. Two lines, a selection (S) and a control (C) line, were involved in the study. The S line comprised 80 females and 10 males and was based at two centres. Boars were performance tested centrally at one of the centres and gilts were on-farm tested. Testing was carried out in groups of two or three full-sibs over the live-weight range 27 o t 87 kg. Selection was based on an index (I) incorporating individual daily live-weight gain (DLWG) and ultrasonically measured backfat thickness (USBF) and a group food conversion ratio (FCR) and generations were overlapping. The C line (32 females and 16 males) was maintained at one centre and males were performance tested alongside S boars to monitor genetic progress. Cumulative realized selection differentials over years 1 to 10 were equivalent to 5·5, 51, 7·0 and 9·4 phenotypic standard deviations for DLWG, USBF, FCR and I respectively and generation intervals averaged 17·0 months. There was little genetic change in DLWG, however, USBF, FCR and I showed substantial improvements with cumulative responses in year 11 of —12·3 mm, —0·22 kg/kg and +45·2 points respectively. The reduction in USBF occurred in the first half of the study with no further improvements being achieved after year 6. This study illustrates the effectiveness of index selection for a limited number of economically important traits but highlights limitations to this approach.

scholarly journals Effect of inclusion of Azolla pinnata on the haematological and carcass characteristics of crossbred large white yorkshire pigs

2014 ◽  
Vol 7 (2) ◽  
pp. 78-82
Author(s):  
D. M. Cherryl ◽  
R. M. V. Prasad ◽  
S. Jagadeeswara Rao ◽  
P. Jayalaxmi ◽  
B. Eswar Rao
Keyword(s):  
Carcass Characteristics ◽  
Azolla Pinnata ◽  
Large White ◽  
Yorkshire Pigs

scholarly journals Growth Performance, Nutrient Digestibility and Carcass Characteristics of Pigs Fed Diets Containing Amarula (Sclerocarya Birrea A. Rich) Nut Cake as Replacement To Soybean Meal

2021 ◽  
Author(s):  
Maggy Palesa Mabena ◽  
Moses Ratsaka ◽  
Thobela Nkukwana ◽  
Ingrid Malebana ◽  
Douglas Nkosi
Keyword(s):  
Growth Performance ◽  
Feed Intake ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Feed Conversion ◽  
Large White ◽  
Sclerocarya Birrea

Abstract This experiment evaluated varying levels of Amarula (Sclerocarya birrea A. Rich) nut cake (ANC) on growth performance, nutrient digestibility and carcass characteristics in pigs. Thirty Large White × Landrace (LW × LR) pigs were stratified by weight (average live weight of 20 ± 5 kg) and randomly allocated to the five experimental diets that contained 0 (control), 50, 100, 150 and 200 g ANC/kg DM. Each pig served as a replicate unit, housed individually. Bodyweight, feed intake, average daily gain (ADG) and feed conversion ratio (FCR) were recorded weekly throughout the trial period. On completion of the growth trial, following a 3-day adaptation, a nutrient digestibility study was conducted over 5 days. Thereafter, pigs were fasted for twelve hours, weighed, slaughtered, and carcass samples were collected for analysis. Feed intake was not affected by dietary treatment, but ADGs were reduced at ANC levels > 15%, resulting in poor FCR. Protein digestibility was reduced at ANC levels > 15%, while ether extract and fibre levels increased. Warm and cold carcass weights were lower at ANC levels > 15, with improved meat redness and lightness. It was concluded that ANC could replace SBM in the diet of growing pigs at less than 15% inclusion level.

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