scholarly journals Comparative study on the reproductive performance, fattening performance and carcass quality of Creole and Large White pigs in Guadeloupe

1981 ◽  
Vol 30 (3) ◽  
pp. 385-386
Author(s):  
I. CANOPE ◽  
Y. RAYNAUD
1995 ◽  
Vol 1995 ◽  
pp. 178-178
Author(s):  
A H Stewart ◽  
S A Edwards ◽  
V R Fowler

The once bred gilt system of production has a number of benefits in terms of feed efficiency and welfare, however the system relies on the production of a quality carcass and acceptable reproductive performance. Previous studies have indicated that welfare might be improved if gilts were ad-libitum fed a diet containing 60% Sugar beet pulp (Stewart et al 1993). There was a suggestion however that reproductive physiology may be put at risk using such a diet. The objective of this experiment was to identify differences in reproductive performance using two different energy sources in gestation and to manipulate nutrition during lactation to study the effect on carcass quality.


1988 ◽  
Vol 18 (3-4) ◽  
pp. 275-288 ◽  
Author(s):  
P. McGloughlin ◽  
P. Allen ◽  
P.V. Tarrant ◽  
R.L. Joseph ◽  
P.B. Lynch ◽  
...  

1995 ◽  
Vol 1995 ◽  
pp. 178-178
Author(s):  
A H Stewart ◽  
S A Edwards ◽  
V R Fowler

The once bred gilt system of production has a number of benefits in terms of feed efficiency and welfare, however the system relies on the production of a quality carcass and acceptable reproductive performance. Previous studies have indicated that welfare might be improved if gilts were ad-libitum fed a diet containing 60% Sugar beet pulp (Stewart et al 1993). There was a suggestion however that reproductive physiology may be put at risk using such a diet. The objective of this experiment was to identify differences in reproductive performance using two different energy sources in gestation and to manipulate nutrition during lactation to study the effect on carcass quality.


2011 ◽  
Vol 89 (11) ◽  
pp. 3481-3489 ◽  
Author(s):  
J. I. Morales ◽  
L. Cámara ◽  
J. D. Berrocoso ◽  
J. P. López ◽  
G. G. Mateos ◽  
...  

2006 ◽  
Vol 22 (1-2) ◽  
pp. 79-88 ◽  
Author(s):  
Milica Petrovic ◽  
Milovan Pusic ◽  
Dragan Radojkovic ◽  
Milan Mijatovic ◽  
Olga Kosovac ◽  
...  

Investigation of quality variability of pig carcass was carried out on 1443 fatlings (gilts and barrows). They were progenies of 22 (Farm A) and 12 sires (Farm B), 5 breeds-crossbreds (Swedish Landrace, Large White, Duroc Hampshire, Duroc x Hampshire). Animals were fed with standardized feed mixture semi ad libitum. The quality of carcass sides was determined on the slaughter-line according to Regulation (1985). Investigation included following traits: weight of warm carcass (MTP, kg), meat in carcass sides (KMP, kg and SMP, %), total mass and ratio of leg+shoulder+loin (MFO, kg and UFO, %). Obtained results were processed using several models (Harvey, 1990) which included sire genotype, sire, sex progeny and mass of warm carcass (regression effect). All investigated traits varied under the influence of sire genotype (P<0.01) on farm B. The effect of sire genotype was significant (P<0.01) on KMP and SMP on the Farm A. All traits of carcass quality varied under the influence of sires. Gilts had higher KMP, SMP, MFO and UFO compared to male castrated heads. Difference in Total Breeding Value between best and worst boar was 10.41 (Farm A) and 11.24 index point (Farm B).


2012 ◽  
Vol 28 (4) ◽  
pp. 779-786
Author(s):  
C. Radovic ◽  
M. Petrovic ◽  
B. Zivkovic ◽  
D. Radojkovic ◽  
N. Parunovic ◽  
...  

Objective of the paper was to investigate the effect of sire breed and sex of their progeny as well as to study methods for assessment of carcass side quality. Quality of carcass of the progeny was determined according to Rulebook (1985) and share of meat on left carcass sides determined by dissection according to methodology recommended by EU (Commission Regulation EC No 3127/94 and Commission regulation EC No 1197/06) on 84 pigs-progeny of investigated sires. Animals investigated in this study were descendants of dams of F1 genotype Swedish Landrace x Large White (the first one designated is the dam) and two boars Duroc breed (n=36 progeny) and three boars Pietrain breed (n=48 progeny). Of total number of progeny, 42 animals were male castrates and 42 animals were female. It was established that sire breed influences (P<0.01) only the fat thickness on the rump (BFTR), whereas sires of Duroc breed influenced (P<0.05 to P<0.001) pre-slaughter mass (PSM), fat thickness in the middle of the back (BFT), share of meat in carcass sides EC No 3127/94 (EC 94) and share of meat in carcass sides EC No 1197/06 (EC 06). Sires within Pietrain breed exhibited effect on (P<0.05 to P<0.001) BFTR, EC 94 and EC 06. All investigated traits were influenced by sex (gender) (P<0.05 and P<0.001) except PSM, whereas the effect of genotype (P<0.001) was present only on PSM. Season of birth influenced only EC 94 and EC 06 (P<0.001). By implementation of new methods of assessment of meatiness (EC 94 and EC 06) was determined to have a higher proportion of meat (13.33% respectively 16.46%) relation to the Rulebook (1985).


1978 ◽  
Vol 90 (1) ◽  
pp. 131-137 ◽  
Author(s):  
A. S. El-Shobokshy ◽  
A. M. Aboul-Naga

SUMMARYLamb and fattening performance and carcass quality of Suffolk x local Ossimi cross-bred lambs are discussed. 1369 cross-bred lamb records over the period from 1957 to 1970 were available for the study. The lambs of 50–59% Suffolk were the best cross-bred group with an advantage of 7–7, 14–2 and 17–1% over the native Ossimi lambs in birth weight, 120-day and yearling body weights, respectively. Generally, lamb performance declined as the Suffolk breeding was increased. However, breed groups variation was not statistically significant, except for birth weight.Seventy-one weaned male lambs, 4 months of age, from three breed groups: 70–90% Suffolk, 35–45% Suffolk and local Ossimi, were fattened for 16 weeks using two levels of feeding. The two Suffolk cross-bred groups gained slightly more body weight than the local Ossimi. After 8 weeks of fattening, the 35–45% Suffolk lambs gained significantly more weight than the local lambs. However, the local lambs were more efficient in converting food to live-weight gain.The carcass quality of the Suffolk cross-bred lambs was better than the local lambs, and the advantage was greater for the high Suffolk breeding group.


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