Sel-Plex® Improves Spermatozoa Morphology in Broiler Breeder Males

Do female broiler breeder fowl display a preference for broiler breeder or laying strain males in a Y-maze test?

In recent years, the commercial broiler breeder industry has reported problems of male aggression towards females [Millman, S.T., 1999. An investigation into extreme aggressiveness of broiler breeder males. Unpublished PhD Thesis, University of Guelph]. Although this aggression is shown by the males and is apparently a defect in their behaviour [Millman, S.T., Duncan, I.J.H., 2000. Strain diffe...

Saturday , PM , POSTERS 238 Influence of selenium yeast ( Sel Plex ) on per - formance and carcass yield of broiler males grown in a cage environment

s of papers 55 allowed by either oxygen or MAP (not different from each other). Of the treatments evaluated, CO2 allowed the least growth of psychrophiles. Proliferation of E. coli and aerobes was the greatest when packaged in air after 14 d, while CO2 packaging resulted in the least growth. These data suggest that O2 may be a preferred environment, which actually reduced Campylobacter recovery...

Feeding broiler breeder males. 4. Deficient feed allocation reduces fertility and broiler progeny body weight.

Two experiments were conducted to evaluate the effects of male broiler breeder feed intake on broiler progeny performance. In experiment 1, a low cumulative nutrition program supplied 29,580 kcal of ME and 1,470 g of CP, whereas a high cumulative nutrition program supplied 33,500 kcal of ME and 1,730 g of CP to photostimulation at 21 wk of age. Two diets (HiDiet and LoDiet) were formulated, and...

Comparative effects of nano-selenium and sodium selenite ‎supplementations on fertility in aged broiler breeder males

It is well documented that aging has negative effects on fertility. With increasing age, the activity of antioxidant enzymes are reduced and because of roosters sperm composition, a high proportion of polyunsaturated fatty acids (PUFAs), the probability of sperm damage increases. The objective of the present study was to compare the effects of nano-selenium and sodium selenite on fertility in a...

Alternatives to mutilation of the outermost joint of the backward-facing toe in broiler breeder males