LIM domain proteins are found to be important regulators in cell growth, cell fate determination, cell differentiation, and remodelling of the cell cytoskeleton by their interaction with some structural proteins, kina...LIM domain proteins are found to be important regulators in cell growth, cell fate determination, cell differentiation, and remodelling of the cell cytoskeleton by their interaction with some structural proteins, kinases, transcriptional regulators, etc. The presence of LIM domains in LMCD1 gene implies it may be involved in skeletal muscle protein-protein interactions. This study was to investigate polymorphisms of LIM and cysteine-rich domain 1 （LMCD1） gene and its effect on meat quality and carcass traits in pig. The polymorphism （G294A） in exon 3 region of porcine LMCD1 gene, which is synonymous mutation, was genotyped in the population of 178 F, pigs of a Large White × Meishan resource family. Statistical results indicated the distribution of allele G （with a A → G mutation） and A （without mutation）. Analysis of variance showed that the polymorphism of LMCD1 gene was associated with variation in several carcass traits of interest for pig breeding. Some carcass traits and meat quality traits are close to significance by association. An analysis of more animals is necessary to analyze the polymorphisms in exon 3 of porcine LMCD1 gene if it was selected as a marker for the pig carcass traits.展开更多
[ Objective] The research aimed to provide theoretical basis for further popularization and application of Berkshire Pig in Southeast Guizhou. [ Method] The carcass traits and meat quality of Berkshire（B） × Lan...[ Objective] The research aimed to provide theoretical basis for further popularization and application of Berkshire Pig in Southeast Guizhou. [ Method] The carcass traits and meat quality of Berkshire（B） × Landrace（L） × Yorkshire（Y）, Duroc（D） × Landrace（L） x Yorkshire（Y） and Lanclrace （L） xYorkshire（Y） were determined by slaughter test. And the application effect of Berkshire in the minority areas was analyzed. [Result] From the carcass traits, the hybridized pig of Berkshire（B） x Landrace（L） ×Yorkshire（Y） had higher slaughter rate and lower lean meat percentage, having extremely significant difference with Landrace （L） × Yorkshire （Y） and significant difference with Durec （D） × Landrace （L） × Yorkshire（Y）. The meat indices of Berkshire（B） × Landrace（L） ×Yorkshire（Y） were better than that of Landrace （L） ×Yorkshire（Y） and Duroc （D）× Landrace（L） ×Yorkshire（Y）. The eye muscle area of Berkshire（B） ×Landrace（L） xYorkshire（Y） had extremely significant difference with Landrace （L） × Yorkshire（Y） and significant difference with Duroc（D） × Landrace（L） × Yorkshire（Y）. The meat color, marbling and cocking percentage and other meat indices were similar with that of Jianhe White Xiang Pig, Nayong Nuogu Pig and Cola Pig. [ Conclusion] Berkshire（B） × Landrace（L） xYorkshire（Y） was more suiTab, for residents in the minority mountain areas, so it was worthy to be popularized.展开更多
[Objective]The paper was to compare the slaughter performance and meat flavor of quality chicken under cage rearing and free-range farming conditions.[Method]A total of 4001-day-old cocks,S07 line cultivated by Sichua...[Objective]The paper was to compare the slaughter performance and meat flavor of quality chicken under cage rearing and free-range farming conditions.[Method]A total of 4001-day-old cocks,S07 line cultivated by Sichuan Dahen Poultry Breeding Co.,Ltd.(bred for 4 succes-sive generations),were kept in cages until the end of 5 weeks of age,which were then divided into cage rearing and free-range farming groups.All cocks were fed with the same diet,and slaughter tests and meat quality analysis were carried out at the end of 10 and 22 weeks of age,respectively.[Result]The live weight,carcass weight and abdominal fat percentage in cage rearing group were significantly higher than those in free-range farming group(P<0.01),and the percentage of half-eviscerated yield and percentage of eviscerated yield in cage rearing group were significantly higher than those in free-range farming group(P<0.05),but there were no significant differences in dressing percentage,percentage of leg muscle and per-centage of breast muscle.The intramuscular fat(IMF)content and muscle fiber density of chicken in cage rearing group were significantly higher than those in free-range farming group(P<0.01),but there was no significant difference in inosinic acid(IMP)content.The content of IMF and IMF increased with the increase of feeding age,but the deposition rate of intramuscular fat was higher than that of IMF in late feeding period.[Conclusion]The study will provide reliable guidance for production and market consumption of high quality chicken.展开更多
[ ObJective] To investigate the histological traits of Taihu geese and analyze the correlation between histological trait and meat quality. [ Method] The common meat qualities and histological traits of Taihu geese at...[ ObJective] To investigate the histological traits of Taihu geese and analyze the correlation between histological trait and meat quality. [ Method] The common meat qualities and histological traits of Taihu geese at the age of 70 d were observed, and the correlation analysis was performed with SPSS 16.0 software. [ Result] The goose was either female or male. The muscle fiber density and muscle fiber diameter of breast muscle were significantly higher than those of leg muscle （ P 〈 0.01 ）. The muscle fiber density had negative correlation with muscle fiber diameter, muscle fiber gap and muscle bundle gap, and the correlation coefficients were -0.808, -0.540 and -0.620, respectively. The muscle fiber diameter had positive correlation with the muscle bundle gap and their correlation coefficient was 0.546. The muscle fiber density had a significant positive correlation with pH value and water holding capacity （P 〈 0.05）. The muscle fiber diameter and muscle fiber gap had a significant negative correlation with pH value （P 〈 0.05）. [ Conclusion] This study provides theoretical basis for goose breeding and improving of meat quality.展开更多
This study was conducted with the objective to determine carcass traits, meat yield, and primal meat cuts of Arsi, Harar, Jersey*Horro crossbred, and Ogaden cattle breeds at Haramaya University, Ethiopia. A total of 1...This study was conducted with the objective to determine carcass traits, meat yield, and primal meat cuts of Arsi, Harar, Jersey*Horro crossbred, and Ogaden cattle breeds at Haramaya University, Ethiopia. A total of 12 bulls of four cattle breeds (3 Arsi, 3 Harar, 3 F1 Jersey*Horro crossbred and 3 Ogaden) with almost similar ages were randomly assigned to four treatments in a completely randomised design (CRD). Data on carcass traits, meat yield, and primal meat cuts were analyzed using the General Linear Model (GLM) of the Statistical Analysis Software (SAS) 9.4 version. The overall averages of live body weight, hot carcass weight, chilled carcass weight, dressing percentages based on hot carcass weight, and rib eye area of experimental cattle breeds were 215.58 kg, 102.93 kg, 99.56 kg, 47.61%, and 8.13 inch<sup>2</sup>, respectively. The hot carcass weight and chilled carcass weight of the Ogaden (136.57;133.30 kg, resp.) breed were higher (p < 0.01) compared to other experimental cattle breeds. Dressing percentages based on hot carcass weight were higher (p < 0.05) for the Ogaden (49.61%) and Arsi (49.82%) cattle breeds compared to Harar and Jersey*Horro crossbred (45.73%, 45.27%, resp.) cattle breeds. The average meat yield and proportion of meat yield of cattle breeds were 77.52 kg and 77.46%, respectively. With a linear regression coefficient of prediction (R<sup>2</sup>) ranging from 52.26% to 93.58%, primal meat cuts significantly (p dicted meat yield. In conclusion, the breed of cattle had a significant (p 0.05) influence on live body weight, hot and chilled carcass weight, dressing percentage, rib eye area, subcutaneous fat thickness, meat yield, and the weights of most primal meat cuts. The Ogaden cattle breed had a higher and better meat yield, carcass traits, and most primal meat cuts compared to other experimental cattle breeds. Furthermore, the inclusion of corn silage in the diet of fattening bulls improved the carcass and meat yield. Therefore, the performance of Ogaden cattle compared to other and previous studies suggests the possibility of using this breed for export purposes in addition to Borana and Harar cattle breeds in the future.展开更多
文摘LIM domain proteins are found to be important regulators in cell growth, cell fate determination, cell differentiation, and remodelling of the cell cytoskeleton by their interaction with some structural proteins, kinases, transcriptional regulators, etc. The presence of LIM domains in LMCD1 gene implies it may be involved in skeletal muscle protein-protein interactions. This study was to investigate polymorphisms of LIM and cysteine-rich domain 1 （LMCD1） gene and its effect on meat quality and carcass traits in pig. The polymorphism （G294A） in exon 3 region of porcine LMCD1 gene, which is synonymous mutation, was genotyped in the population of 178 F, pigs of a Large White × Meishan resource family. Statistical results indicated the distribution of allele G （with a A → G mutation） and A （without mutation）. Analysis of variance showed that the polymorphism of LMCD1 gene was associated with variation in several carcass traits of interest for pig breeding. Some carcass traits and meat quality traits are close to significance by association. An analysis of more animals is necessary to analyze the polymorphisms in exon 3 of porcine LMCD1 gene if it was selected as a marker for the pig carcass traits.
基金Supported by Key Project by Department of Science and Technology in Guizhou Province(Qiankehe 2011-5020)
文摘[ Objective] The research aimed to provide theoretical basis for further popularization and application of Berkshire Pig in Southeast Guizhou. [ Method] The carcass traits and meat quality of Berkshire（B） × Landrace（L） × Yorkshire（Y）, Duroc（D） × Landrace（L） x Yorkshire（Y） and Lanclrace （L） xYorkshire（Y） were determined by slaughter test. And the application effect of Berkshire in the minority areas was analyzed. [Result] From the carcass traits, the hybridized pig of Berkshire（B） x Landrace（L） ×Yorkshire（Y） had higher slaughter rate and lower lean meat percentage, having extremely significant difference with Landrace （L） × Yorkshire （Y） and significant difference with Durec （D） × Landrace （L） × Yorkshire（Y）. The meat indices of Berkshire（B） × Landrace（L） ×Yorkshire（Y） were better than that of Landrace （L） ×Yorkshire（Y） and Duroc （D）× Landrace（L） ×Yorkshire（Y）. The eye muscle area of Berkshire（B） ×Landrace（L） xYorkshire（Y） had extremely significant difference with Landrace （L） × Yorkshire（Y） and significant difference with Duroc（D） × Landrace（L） × Yorkshire（Y）. The meat color, marbling and cocking percentage and other meat indices were similar with that of Jianhe White Xiang Pig, Nayong Nuogu Pig and Cola Pig. [ Conclusion] Berkshire（B） × Landrace（L） xYorkshire（Y） was more suiTab, for residents in the minority mountain areas, so it was worthy to be popularized.
基金Supported by National Chicken Industry Research System of China(CARS-41-G04)Key R&D Program of Sichuan Province(2021YFN0029,2021YFYZ0031)Special Project of Financial Operation of Sichuan Province(SASA2020CZYX007)。
文摘[Objective]The paper was to compare the slaughter performance and meat flavor of quality chicken under cage rearing and free-range farming conditions.[Method]A total of 4001-day-old cocks,S07 line cultivated by Sichuan Dahen Poultry Breeding Co.,Ltd.(bred for 4 succes-sive generations),were kept in cages until the end of 5 weeks of age,which were then divided into cage rearing and free-range farming groups.All cocks were fed with the same diet,and slaughter tests and meat quality analysis were carried out at the end of 10 and 22 weeks of age,respectively.[Result]The live weight,carcass weight and abdominal fat percentage in cage rearing group were significantly higher than those in free-range farming group(P<0.01),and the percentage of half-eviscerated yield and percentage of eviscerated yield in cage rearing group were significantly higher than those in free-range farming group(P<0.05),but there were no significant differences in dressing percentage,percentage of leg muscle and per-centage of breast muscle.The intramuscular fat(IMF)content and muscle fiber density of chicken in cage rearing group were significantly higher than those in free-range farming group(P<0.01),but there was no significant difference in inosinic acid(IMP)content.The content of IMF and IMF increased with the increase of feeding age,but the deposition rate of intramuscular fat was higher than that of IMF in late feeding period.[Conclusion]The study will provide reliable guidance for production and market consumption of high quality chicken.
基金supported by the National Scientific and Technological Support Program (2008BADB2B08)the Yangzhou Scientific and Technological Development Projects(YZ2009035)
文摘[ ObJective] To investigate the histological traits of Taihu geese and analyze the correlation between histological trait and meat quality. [ Method] The common meat qualities and histological traits of Taihu geese at the age of 70 d were observed, and the correlation analysis was performed with SPSS 16.0 software. [ Result] The goose was either female or male. The muscle fiber density and muscle fiber diameter of breast muscle were significantly higher than those of leg muscle （ P 〈 0.01 ）. The muscle fiber density had negative correlation with muscle fiber diameter, muscle fiber gap and muscle bundle gap, and the correlation coefficients were -0.808, -0.540 and -0.620, respectively. The muscle fiber diameter had positive correlation with the muscle bundle gap and their correlation coefficient was 0.546. The muscle fiber density had a significant positive correlation with pH value and water holding capacity （P 〈 0.05）. The muscle fiber diameter and muscle fiber gap had a significant negative correlation with pH value （P 〈 0.05）. [ Conclusion] This study provides theoretical basis for goose breeding and improving of meat quality.
文摘This study was conducted with the objective to determine carcass traits, meat yield, and primal meat cuts of Arsi, Harar, Jersey*Horro crossbred, and Ogaden cattle breeds at Haramaya University, Ethiopia. A total of 12 bulls of four cattle breeds (3 Arsi, 3 Harar, 3 F1 Jersey*Horro crossbred and 3 Ogaden) with almost similar ages were randomly assigned to four treatments in a completely randomised design (CRD). Data on carcass traits, meat yield, and primal meat cuts were analyzed using the General Linear Model (GLM) of the Statistical Analysis Software (SAS) 9.4 version. The overall averages of live body weight, hot carcass weight, chilled carcass weight, dressing percentages based on hot carcass weight, and rib eye area of experimental cattle breeds were 215.58 kg, 102.93 kg, 99.56 kg, 47.61%, and 8.13 inch<sup>2</sup>, respectively. The hot carcass weight and chilled carcass weight of the Ogaden (136.57;133.30 kg, resp.) breed were higher (p < 0.01) compared to other experimental cattle breeds. Dressing percentages based on hot carcass weight were higher (p < 0.05) for the Ogaden (49.61%) and Arsi (49.82%) cattle breeds compared to Harar and Jersey*Horro crossbred (45.73%, 45.27%, resp.) cattle breeds. The average meat yield and proportion of meat yield of cattle breeds were 77.52 kg and 77.46%, respectively. With a linear regression coefficient of prediction (R<sup>2</sup>) ranging from 52.26% to 93.58%, primal meat cuts significantly (p dicted meat yield. In conclusion, the breed of cattle had a significant (p 0.05) influence on live body weight, hot and chilled carcass weight, dressing percentage, rib eye area, subcutaneous fat thickness, meat yield, and the weights of most primal meat cuts. The Ogaden cattle breed had a higher and better meat yield, carcass traits, and most primal meat cuts compared to other experimental cattle breeds. Furthermore, the inclusion of corn silage in the diet of fattening bulls improved the carcass and meat yield. Therefore, the performance of Ogaden cattle compared to other and previous studies suggests the possibility of using this breed for export purposes in addition to Borana and Harar cattle breeds in the future.
