The Nutritional Value of High-Oil Corn for Broiler Chicks

Abstract

A variety of corn (Natan) with high fat and protein contents (6.7 and 9.8%, respectively) was developed at Newe Ya'ar, Israel. The nutritive value of this corn for broiler chicks from 7 to 28 d of age was evaluated in two experiments. In the first experiment, Natan and a local conventional corn variety (LCC-2.9% fat and 7.2% protein) were incorporated in a relatively low-protein diet designated for the determination of AMEn by the substitution method. The AMEn content of Natan was found to be 3,658 kcal/kg, whereas that of LCC was 3,437 kcal/kg. There were no differences in feed intake or weight gain between chicks fed the two corn varieties, but feed efficiency of those fed the diet containing Natan was improved (P < .05). In the second experiment, the effects on the performance of chicks of diets adequate in protein and containing either imported conventional corn (ICC), or Natan, or ICC-enriched with corn oil and soybean meal (to equalize its fat and protein content to that of the diet containing Natan), were compared. There were no differences in feed intake or weight gain among chicks fed the three diets and in feed efficiency among chicks fed the diet containing Natan and those fed the other two diets, whereas, the enrichment of the ICC-containing diet significantly improved feed efficiency. It was concluded, therefore, that in spite of the high nutritional value of the high-oil corn, its effect on improving the performance of chicks, when replacing a conventional corn in a well-balanced diet, was not pronounced.

The Use of High-oil Corn in Young Broiler Chicken Diets

“…With HOC2 vs NC2 and HOC3 vs NC6, 100kcal/kg greater GE improved F/G by 0.05 units. Han et al (1987), Bartov and Bar-Zur (1995), Saleh et al (1997), andBenitez et al (1999) reported no significant difference in growth performance between broiler diets containing normal corn and HOC. This would be expected since their diets were formulated to be isonitrogenous and isocaloric, but same ratio of corn replacement could improve performance.…”

“…Improving the nutritional value of corn through genetic alternation has become of great interest to poultry producers (Saleh et al, 1997). The published research regarding the utilization of high-oil corn (HOC) varieties (Han et al, 1987;Dale and Whittle, 1991;Adams et al, 1994;Bartov and Bar-Zur, 1995;Saleh et al, 1997;Parsons et al, 1998;Benitez et al, 1999;Lee et al, 2001) typically has been limited in scope, due in part to limitation of test material available. Also due to the development of new varieties of HOC yearly, recent studies are limited and somewhat conflicting in their results.…”

Metabolisable energy and amino acid digestibility of high-oil maize, low-phytate maize and low-phytate soybean meal for White Pekin ducks

“…This indicates that HOM can be used to increase the energy density of diets without the use of high concentrations of supplemental fat (Adams et al, 1994). It should be noted that, in spite of the high nutritional value of HOM, there was only a slight improvement in chicken performance when the HOM replaced NM in a well-balanced diet (Bartov and Bar-Zur, 1995). For LPM, a study with pigs has shown that a higher daily nitrogen retention was observed among pigs that received diets containing LPM than those fed on diet containing NM (Sands et al, 2001) suggesting a possible interaction between nitrogen and phosphorus balance in pigs.…”

Untitled

“…Smink et al (2008) concluded that randomized palm oil may be used as vegetable oil in broiler nutrition with positive effect on saturated fatty acid digestibility when compared with native palm oil and positive effect on firmness of meat when compared with vegetable oils rich in unsaturated fatty acids. Bartov and Bar-Zur, (1995) broilers from 8 to 21 days consuming diets with HOC developed showed no differences in feed intake or weight gain, but feed efficiency was better when compared with a conventional corn. Han et al (1987) reported that weight gain, gain-to-feed ratio, and skin and plasma pigmentation were improved in chicks fed HOC compared to those fed conventional yellow dent corn.…”