Feed intake, reduced

Lipids present in the diet may become rancid. When fed at high (>4-6%) levels, Hpids may decrease diet acceptabiUty, increase handling problems, result in poor pellet quaUty, cause diarrhea, reduce feed intake, and decrease fiber digestion in the mmen (5). To alleviate the fiber digestion problem, calcium soaps or prilled free fatty acids have been developed to escape mminal fermentation. These fatty acids then are available for absorption from the small intestine (5). Feeding whole oilseeds also has alleviated some of the problems caused by feeding Hpids. A detailed discussion of Hpid metaboHsm by mminants can be found (16). 

The more variable responses with growing catde appear to result from lower doses, nutritional constraints, or lesser responsiveness of younger animals, ie, veal calves. A dose-dependent reduction in feed intake in finishing cattle, which also reduced average daily gain, has been observed (84). However, carcass composition was improved in a dose-dependent manner. 

Feed Consumption. Feed consumption can be measured over two to three consecutive days, and the average daily intake calculated. A problem with measuring feed intake in ferrets is their tendency to dig through their feed bowl, which often results in an unacceptable amount of spillage. Use of a feed follower may help reduce the spillage. 

Partial paralysis of hind limbs and reduced feed intake by day 5 90% dead at 28 days LD50... 

Estimated AA requirements are shown in the tables at the end of this chapter, based on the concept of IP (NRC, 1994). Factors that affect the level of feed intake have an influence on requirements, a reduction in expected feed intake requiring the concentration of dietary AAs to be increased. Correspondingly, the concentration of AAs may be reduced when feed intake is increased. 

Deficiency symptoms in poultry include muscular incoordination, uric acid deposits in the ureters and kidneys and general unthriftiness. Hens receiving insufficient vitamin A produce fewer eggs and the eggs frequently do not hatch. Other deficiency signs in poultry include reduced feed intake, susceptibility to respiratory and other infections and, ultimately, death. 

The inclusion of oats may have to be avoided during hot weather because of a higher heat increment during digestion, which can result in reduced feed intake and growth rate. 

Lupins are low in most minerals, with the exception of Mn. Lupinus albus is known to be an Mn accumulator and it has been suggested that high Mn might be the explanation for a reduced voluntary feed intake in some farm animals fed diets containing this species of lupin. However, excessive Mn levels in lupins do not appear to be the cause of reduced feed intake. 

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