Recently, consumers have been seeking natural and healthy products such as meat rich in polyunsaturated fatty acids, beneficial for health with decreasing the saturated fatty acids. Then, to enhance the meat quality, some nutritional strategies were considered such as using the residues of aromatic and medicinal plants. Then, the use of rosemary residues in lamb feeding increased the polyunsaturated fatty acid, n-6 and n-3 contents and reduced the saturation index in muscles and adipose tissues.
In an experiment the longissimus lumborum and gluteus medius muscles were collected from lambs of two genotypes to analyse physico-chemical traits, fatty acid profile, taurine, carnosine, and L-carnitine. Results showed a greater impact of the lamb’s genotype on physical traits of meat than on its chemical composition and content of bioactive components. Muscle type had an effect on meat colour; collagen content; fatty acid profile; and the amount of taurine, carnosine, and L-carnitine.
The relationship between HSPB1 expression and muscle growth in beef cattle has previously been reported, but there have been no reports of DNA markers related to meat quantity in Korean native steers. Therefore, the aim of this study was to evaluate the relationship of SNPs within HSPB1 in terms of the carcass traits related to muscle growth in Korean native steers.
This F94L MSTN polymorphism study demonstrates the high genetic potential of Aberdeen Angus and Belgian Blue cattle. The Aberdeen Angus populations have animal carriers of the AM, OS, DD and M1 genetic defects points. Animal carriers of HY and MSUD genetic defects were absent in the Hereford herds. These facts allow us to conclude that the breeding of the above breeds has great potential for improving meat cattle industry profitability under genetic defect control.
This study evaluated the production performance of six chicken breeds under different agroecologies in Nigeria for 72 weeks. Each participating smallholder poultry (SHP) farmer (2100) received about 30 birds. The breeds were ranked (highest–lowest) for growth, laying performance and survivability as Shika-Brown/Sasso>FUNAAB Alpha/Noiler>Kuroiler>Fulani. The lowland rainforest and freshwater swamp supported the highest performance of the breeds. The study could guide the development of SHP.
The purpose of this study was to investigate the expression level and genetic variation of the ACSL1 gene of the Dezhou donkey and its effect on growth traits. The results show that the ACSL1 gene is regularly expressed in Dezhou donkey tissue. Through the association analysis of the genotype and haplotype combination and growth traits, it is speculated that the ACSL1 gene can be used as a candidate gene for Dezhou donkey breeding.
Here, we investigated the effect of sire line on growth performance and carcass traits of crossbred offspring under standardized environmental conditions. Pigs sired by a synthetic line showed benefits in fattening performance and Piétrain crossbreeds were characterized by a better carcass value. The synthetic line is preferable in terms of the number of fatting pigs per fattening place and year, while the Piétrain line provides increased leanness and carcass cuts.