Effects of the interrelationship between genotype, sex, and dietary lysine on growth performance and carcass composition in finishing pigs fed to either 104 or 127 kilograms2

Friesen, K.G.; Nelssen, Jim L.; Unruh, John A.; Goodband, Robert D.; Tokach, Mike D

doi:10.2527/1994.724946x

Cited by 81 publications

(78 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These data agree with Carr et al (1978), who reported increased backfat thickness and longissimus muscle area as slaughter weights increased from 68.2 to 138.4 kg. In addition, Landrace had less average backfat thickness and larger longissimus muscle area compared with Jinhua pigs; these results are in agreement with previous report (Friesen et al, 1994), who observed that high-lean pigs had larger longissimus muscle area and less average backfat thickness compared with mediumlean pigs.…”

Section: Discussionsupporting

confidence: 92%

Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace

Miao

Wang

et al. 2009

Animal

View full text Add to dashboard Cite

The present study was aimed to compare the developmental changes of carcass composition, meat quality characteristics and organ weight in pigs of different breeds. Six pigs (sex balance) of each breed were slaughtered at 35, 80 and 125 days of age, respectively. The carcass was chilled and the left carcass side was dissected into bone, lean meat, fat and skin; additionally, organ weight and meat quality parameters were observed. Carcasses of the Jinhua pig were lighter ( P , 0.001), contained less lean meat percentage ( P , 0.01) and more carcass fat percentage ( P , 0.05) than did carcasses of the Landrace. L*-values were lower in Jinhua pigs than in Landrace at 125 days of age ( P , 0.05), but the Jinhua pig had higher a*-values compared with Landrace at the age of 80 days ( P , 0.01) and 125 days ( P , 0.01), respectively. In addition, Jinhua pigs showed lower colour scores ( P , 0.05), higher intramuscular fat (IMF) percentage ( P , 0.05), less marbling scores ( P , 0.05) and lower drip loss ( P , 0.05) than Landrace. For organ weight, Jinhua pigs had higher relative heart weight at the age of 80 days ( P , 0.05) and 125 days ( P , 0.001), and higher relative liver weight at 125 days of age ( P , 0.01) than that of Landrace. In addition, the relative kidney weight was heavier ( P , 0.001) in the Jinhua pig than in the Landrace during the whole experiment. These results indicated that developmental changes of carcass composition, meat quality parameters and organ weight displayed breed differences. Jinhua pigs were fatter than Landrace but the former had better quality characteristics in the meat.

show abstract

Section: Discussionsupporting

confidence: 92%

Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace

Miao

Wang

et al. 2009

Animal

View full text Add to dashboard Cite

show abstract

“…In addition, carcass fat content increased with age in the two breeds. These results are in accordance with the results of some studies which indicate that carcass fat content displayed age-dependent patterns (Carr et al, 1978;Friesen et al, 1994;D'Souza et al, 2004;Correa et al, 2006).…”

Section: Discussionsupporting

confidence: 82%

Developmental patterns of FASN and LIPE mRNA expression in adipose tissue of growing Jinhua and Landrace gilts

Miao¹,

Zhu²,

Zhang³

et al. 2010

Czech J. Anim. Sci.

View full text Add to dashboard Cite

ABSTRACT:The present study was aimed to investigate the developmental patterns of FASN (fatty acid synthase) and LIPE (lipase, hormone-sensitive) mRNA in adipose tissue in pigs of different breeds and the relation with carcass fat content. Subcutaneous adipose tissue was sampled and total RNA was extracted to determine FASN and LIPE mRNA levels by semi-quantitative RT-PCR. The results showed that the FASN mRNA level increased with age (P < 0.05) and Jinhua gilts expressed higher FASN mRNA compared with Landrace gilts at 80 and 125 days of age (P < 0.05). In addition, Jinhua gilts expressed lower LIPE mRNA compared with Landrace gilts at 80 days of age (P < 0.01). Furthermore, the ratio of FASN/LIPE mRNA had a similar model in the two breeds, and was higher in Jinhua gilts than that in Landrace gilts at 80 and 125 days of age (P < 0.05). The FASN mRNA level was positively related to carcass fat content in Jinhua and Landrace gilts (r = 0.802, P = 0.01; r = 0.734, P = 0.02; respectively), and the ratio of FASN/LIPE expression exhibited significantly positively related carcass fat content (r = 0.804, P = 0.01; r = 0.749, P = 0.02; respectively).

show abstract

“…Barrows were fatter, with a lower loin eye depth than gilts, results that agree with most other studies (Cisneros et al 1996;Friesen et al 1994).…”

Section: Growth Performance and Carcass Characteristics Of Progenysupporting

confidence: 82%

Comparison of one-quarter Chinese Meishan and three-breed conventional cross females for sow productivity, and growth and carcass characteristics of the progeny

2000

View full text Add to dashboard Cite

M. 2000. Comparison of one-quarter Chinese Meishan and three-breed conventional cross females for sow productivity, and growth and carcass characteristics of the progeny. Can. J. Anim. Sci. 80: 281-286. The reproductive performance over five parities of two one-quarter Meishan female genotypes were compared with a three-breed cross female genotype based on conventional breeds of pigs. Hampshire-sired progeny from these females were evaluated for growth performance and carcass measures. The female genotypes evaluated were Landrace × (Meishan × Yorkshire) (LMeY) (n = 45), Duroc × (Meishan × Yorkshire) (DMeY) (n = 41), and Landrace × (Duroc × Yorkshire) (LDY) (n = 50), respectively. LMeY had a greater number of pigs born alive (11.1, 10.6, and 10.2, SE = 0.24 for LMeY, DMeY, and LDY, respectively, P < 0.05) and a higher total litter birth weight (20.02, 18.16, and 17.29, SE = 0.383 kg for LMeY, DMeY, and LDY, respectively, P < 0.001) than the other lines. Gestation length was reduced for the two Meishan-cross genotypes (114.5, 114.3, and 114.9, SE = 0.18, for LMeY, DMeY and LDY, respectively; P < 0.001). A shorter farrowing interval was observed for the LMeY (147.1, 148.6 and 151.4, SE = 1.32 for LMeY, DMeY and LDY, respectively, P < 0.05). Number of pigs weaned per litter was highest for LMeY line (10.7, 10.0, and 9.4, SE = 0.22 for LMeY, DMeY and LDY, respectively; P < 0.05). No differences (P > 0.05) were observed between the Hampshire-sired progeny of the three dam genotypes for growth performance, backfat thickness and loin eye depth at 114 kg. These results indicate that the development of a female line with one-quarter Meishan may result in improved reproductive efficiency compared to female lines based on western breeds. )] n = 50. LMeY produisait plus (P < 0,05, ET = 0,24) de porcelets nés vivants, soit 11,1 et un poids total de portée à la naissance plus élevé (P < 0,001), ET = 0,383 kg, soit 20,02 kg, que DMeY, respectivement, 10,6 et 18,16 et LDY, respectivement, 10,2 et 17,29. La durée de la gestation était plus courte chez les deux croisements Meishan, soit, respectivement, 114,5 et 114,3 jours (P < 0,001) que chez LDY, 111,4 j (ET = 0,18). L'intervalle entre mises bas était plus rapproché chez LMeY (147,1 j) que chez DMeY et LDY, respectivement 148,6 et 151,4 j, ET = 1,32. C'est aussi la souche LMeY qui conduisait au sevrage le plus grand nombre de porcelets par portée (P < 0,05), soit 10,7 contre respectivement 10,0 et 9,4 (ET = 0,22) pour DMeY et LDY. Aucune différence significative au seuil de P > 0,05 n'était observée entre les trois souches maternelles pour les performances de croissance, pour l'épaisseur du lard dorsal et pour la profondeur de la noix de côte au poids corporel de 114 kg. Il ressort de nos observations que la constitution d'une souche femelle à 1/4 d'ascendance Meishan peut apporter une amélio-ration de l'efficience de reproduction par rapport aux souches issues des races occidentales.

show abstract

Effects of the interrelationship between genotype, sex, and dietary lysine on growth performance and carcass composition in finishing pigs fed to either 104 or 127 kilograms2

Cited by 81 publications

References 22 publications

Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace

Developmental changes of carcass composition, meat quality and organs in the Jinhua pig and Landrace

Developmental patterns of FASN and LIPE mRNA expression in adipose tissue of growing Jinhua and Landrace gilts

Comparison of one-quarter Chinese Meishan and three-breed conventional cross females for sow productivity, and growth and carcass characteristics of the progeny

Contact Info

Product

Resources

About