Comparison of three fresh cow feeding programs

Comparison of Multi-Step Phase-Feeding Programs (Eight or Thirteen Steps) with a Commercial Three-Step Feeding Program for Broiler Chickens

Two trials were conducted to study the effect of multi-steps phase-feeding (PF) program on growth performance of broiler chickens from 1 to 24 and 1 to 39 d of age. The control group was the nutrient recommendation of Aviagen (2019) with a three-step PF program (1-10, 11-24 and 25-39 d of age). In the first trial, the control group was compared with an eight-step PF program (PF8), and in the se...

Comparison of Aged and fresh Automotive Three-Way Catalyst in Driving Cycle

Recently, environmental concern and demand for a catalyst’s high performance have increased and many research activities focused on the operation of a three-way catalyst (TWC) at the end of its lifetime. Catalyst aging is the loss of catalytic activity over time that has crucial importance in emission of three-way catalyst.  The aim of this paper is, investigating experimentally the performanc...

Feeding the Sow: Comparison of Gestational and Lactation Programs

There are a number of reasons that sow nutritional performance during lactation is of great interest to producers. In a series of extension articles, Flowers (2002a,b) indicated that, when troubleshooting reproductive problems in sows, a key event to investigate carefully is feed intake during previous lactation. Besides the reproductive performance of the sow, piglet performance is also intrin...

Comparison study of three methods for genomic DNA extraction from fresh and herbarium leaf specimens of Achillea wilhelmsii C.Koch

DNA extraction from plant tissues often causes most problems. For example, unsuccessful removal secondary metabolites during extraction, such as phenolic compounds in aromatic and medicinal plants, cause to some mistakes in result of molecular experiments by using of the extracted DNA. Achillea wilhelmsii is a medicinal plant belong to Asteraceae family and native to Iran, there is little infor...

Using Byproduct Feeds in Cow/Calf Programs