The study was conducted to investigate the different rearing systems on growth performance and meat quality of Wuding chickens (local native breeds in Yunnan Province of P. R. China). A total of 240, 70-day-old Wuding chickens with similar weight were…
The study evaluated the effects on the growth performance and carcass characteristics of broiler chickens of DL-Methionine (DL-Met) and methionine hydroxy analogue (MHA) supplementation and their partial replacement with betaine (Bet). Two experiments were performed from day 1 to 21…
Requirements of lambs for choline and methionine have not been clearly established, but because of their metabolic relationship, the availability of these two nutrients may affect protein synthesis and energy balance. Therefore, a trial was carried out to evaluate the…
This study aimed to investigate various levels of crude protein (CP) in starter diets and their supplementation with amino acids (AAs) on efficiency, health, and serum metabolites of dairy calves. Ninety-six newborn Holstein calves were allocated to eight treatments, namely…
Two experiments were conducted to investigate the effects of fortification of the pre-starter diet with glutamine in post-hatch broiler chicks. In the first experiment, male chicks were used to study the impact of glutamine supplementation at three levels (0%, 1%…
The whole empty body essential amino acid composition of finishing Merino and Dohne Merino male lambs was investigated. The amino acid requirements for growth vary considerably between these two breeds. Hence, it appears that whole empty body amino acid profiles…
The weight and protein distribution, as well as the essential amino acid composition of the carcass, internal and external offal of Merino and Dohne Merino male lambs were investigated. Differences in the weight and protein distribution, as well as the…
The chemical score of microbial protein revealed the order of limiting amino acids for whole empty body growth of Merino and Dohne Merino lambs as histidine, methionine, leucine, arginine and phenylalanine. Microbial protein is unable to provide a similar duodenal…
The aim of the study was to determine the optimum protein inclusion level in diets containing an ideal amino acid balance for growing pigs. The performance of commercial crossbred grower-pigs was studied in two trials in which the experimental animals…
Two trials were conducted to determine the effects of rumen degradable protein (RDP) level and source on the duodenal essential amino acid (AA) composition of Dohne Merino wethers. The animals had ad libitum access to wheat straw (32 g crude…
