Low delivery weight piglets generally enjoy slower and not more environment friendly expansion in comparison to their customary delivery weight littermates. In consequence, low delivery weight piglets require a longer expansion length to achieve an identical slaughter weights as customary delivery weight piglets. Moreover, low delivery weight piglets most often showcase a decrease lean carcass share than customary delivery weight piglets upon slaughter. In sensible phrases, low delivery weight piglets are generally raised thru fostering or person feeding from delivery to slaughter. This custom would possibly lead to carcasses with upper fats content material and higher intramuscular fats in comparison to customary delivery weight. Observations have indicated that low delivery weight piglets fed a high-fat food regimen are at risk of creating insulin resistance. The inclusion of dairy merchandise within the food regimen of low delivery weight piglets would possibly be offering a possible strategy to mitigate the metabolic penalties related to insulin resistance in piglets. This learn about investigated how delivery weight variations in piglets affected carcass and muscle fiber homes in addition to meat high quality at slaughter.
Strategies: Inside litters, piglets had been grouped consistent with their delivery weight as both customary (1.62–1.73 kg) or low (1.18–1.29 kg). At 5 weeks of age, customary delivery weight piglets had been randomly transitioned to regulate or isocaloric excessive fats diets derived from non-dairy, whilst low delivery weight piglets had been randomly transitioned to excessive fats diets derived from non-dairy or dairy assets. Piglets had been reared in person pens beneath standardized housing and feeding prerequisites. Are living weight used to be recorded weekly, and pigs had been slaughtered at 12 weeks of age.
Effects: Effects indicated that low delivery weight pigs compensated for his or her reside weight in comparison to customary delivery weight pigs at 6 weeks of age. The imply muscle fiber diameter of the low delivery weight dairy staff used to be considerably upper than the traditional delivery weight regulate and customary delivery weight non-dairy staff, and the kind I muscle fiber diameter used to be considerably upper than the traditional delivery weight regulate staff. Dairy fats inclusion in low delivery weight pig food regimen diminished carcass again fats thickness. This higher the calculated lean meat yield to be related to that of standard delivery weight pigs fed a industrial food regimen.
Conclusion: Incorporating dairy-sourced high-fat into low delivery weight pigs’ diets seems to be an efficient technique for generating carcasses an identical to customary delivery weight pigs.
Roy BC, Coleman P, Markowsky M, Wang Okay, She Y, Richard C, Proctor SD, Bruce, HL. Muscle fiber, connective tissue and meat high quality traits of red meat from low delivery weight pigs as suffering from diet-induced higher fats absorption and preferential muscle marbling. Meals Science of Animal Sources. 2024; 44(1): 51.
https://doi.org/10.5851/kosfa.2023.e56