OBJECTIVE This study aimed to assess the effect of pelleted and expanded sorghum-based feeds prepared with different moisture levels and particle size of ingredients on metabolizable energy, ileal digestibility of amino acids and broiler performance. METHODS The experiment was performed with 720 male broiler chicks of the Cobb strain, with treatments of six replications, with 15 birds each; t...

Some regulated secretory proteins are thought to be targeted to secretory granules through an acidic-dependent aggregation in the trans-Golgi network. In this report we use pancreatic zymogens, a paradigm of regulated proteins, to test this hypothesis, because they qualitatively aggregate upon acidification in vitro. Pig zymogens were found to start to aggregate significantly at pH approximatel...

Three-hundred-seventy-eight, 18-21 day-old, pigs were used to evaluate subsequent weanling pig performance, during the second and third dietary phases, following initial phase 1 exposure to a commercial pelleted starter (CS) diet or farm processed wheat/barley/dried whey based starter diets prepared with, or without, spray dried porcine plasma (PPLS). One-half of the pigs in each treatment also...

The levels of quinolizidine alkaloids in lupin seeds vary depending on the botanical and geographical origin of the lupin variety from which theyderive. “Bitter lupins” produce seeds which have a bitter taste due to the higher levels of quinolizidine alkaloids they contain. Bitter lupin seeds are not suitable for human consumption without appropriate pre-treatment (“debittering”). Lupin varieti...

The objective of this research was to evaluate the effects of residual feed intake (RFI) determined under ad libitum feeding conditions on DMI and performance of yearling ewes fed either chopped or pelleted alfalfa hay. In Exp. 1, 45 ewe-lambs had ad libitum access to a pelleted grower diet for 63 d and individual DMI was determined using an electronic feed delivery system. Residual feed intake...

Hydrotime is a way to describe the relationship between water potential (ψ) and seed germination rates and percentages. The minimum ψ that allows germination to be completed is called the base water potential (ψb). The germination rate (inverse of time to radicle emergence) increases linearly as the seed ψ increases above ψb to its maximum rate in water (ψ = 0 MPa). As ψb values vary among indi...

Ronozyme PTM CT (RCT), a phytase, was developed for improved heat stability for pelleted feeds to avoid the need for liquid phytase application. The patented, thin lipid coating of the beadlet reduces enzyme exposure to moisture, one of the two major destabilizing factors for phytase during pelleting. Retention tests were completed in 12 randomly chosen integrated U.S. poultry commercial feedmi...

Management of onion maggot, Delia antiqua (Meigen), in onion requires the use of an insecticide applied at planting. Insecticide resistance and a dearth of available products have stimulated an effort to identify new insecticides for onion maggot control, especially chemistries that can be delivered as seed treatments. Onion seeds film-coated with fipronil, spinosad, clothianidin or thiamethoxa...