Performance of layers fed diets containing different oils

Abstract

A trial was carried out at the Animal Science Department of the Federal University of Viçosa to evaluate the performance of heavy and light layers. During four periods of twenty-eight days, 432 layers in the second production cycle, being 216 Hy Line W36 (light birds) and 216 Hy Line Brown (heavy birds), were used. A completely randomized experimental design with a 1+(4x2x2) factorial arrangement (one control treatment, four oil sources, two inclusion levels, and two genetic lines) with four replicates of six birds per experimental unit, was applied. The treatments consisted of diets containing 16.5% crude protein, formulated to supply the nutritional requirements, and the inclusion of each oil source at 2 or 4%. Soybean, canola, linseed and fish oils were used. The control diet did not contain any oil. The studied parameters were: feed intake (g/hen/day), egg production (%), egg weight (g), egg mass (g/hen/day), feed conversion ratio (kg feed /dozen of eggs and per kg eggs). Oil levels and sources did not influence egg mass, feed conversion ratio (per kg eggs and dozen eggs), or egg production. During the first three periods, independently of oil source or genetics, eggs from layers fed 4% oil were the heaviest, except for those of light birds fed soybean oil during the third period, which egg weight was similar for the 2 and 4% levels. Light layers presented lower feed intake and better feed conversion ratio (per kg eggs and dozen eggs) as compared to heavy layers, and there was no influence of the evaluated oil sources on feed intake

The Effect of Different Levels of Canola Oil on Performance, Egg Shell Quality and Fatty Acid Composition of Laying Hens

“…The findings of the present study were in Utlu, 2006;Shafey et al, 2003) and feed conversion agreement with the findings of Ceylan et al (2011). The (Grobas et al, 2001;Lelis et al, 2009;Balevi and egg yolk index increased in the present study (Table 3). Coskun, 2000) when canola oil was supplemented into…”

“…Conversely, Mazalli et al supplementation of different feed oils (Küçükersan et al, (2004a) reported that the diameter of the egg yellow 2010). Alternatively, some researchers (Rasoulpour et reduced due to reduction in plasma estradiol level when al., Shahriar et al, 2002;Lelis et al, 2009;Ceylan n-3 PUFA level increased the in diet. In previous studies et al, 2011) reported that types of feed oils did not affect where the effects of different feed oils on performance feed intake, egg production and feed conversion, and egg quality in laying hens were investigated (Ceylan although saturated oils supplementation decreased et al, 2011;Cherian, 2008) it was observed that the feed intake (Grobas et al, 2001).…”

Effect of Supplementation Purslane (Portulaca oleracea) as a Source of Alpha-Linolenic Acid on Production Performance and Physical Quality of Egg of Laying Hens

“…In addition, Evaris et al (2015) found that the dietary inclusion of purslane meal (Portulaca oleracea) up to 200 g/kg resulted in the increase in feed consumption, egg production and FCR. These results were similar to other findings on the effect of diets containing different fat sources including tallow, canola, sunflower, soybean and flaxseed oil on the performance of laying hens (Lelis et al, 2009;Ceylan et al, 2011). Kartikasari et al (2012) reported that supplementation of vegetable oils rich in n-3 PUFA, such as canola oil and flaxseed oil, did not modify performance measurements including egg weight, egg production and FCR.…”

The Effect of Different Levels of Sesame Oil on Productive Performance, Egg Yolk and Blood Serum Lipid Profile in Laying Hens

“…This can also be explained that the shortage of linoleic acid in the diet might be the limiting factor contributed to the decrease in egg weight [19] [20]. Supplementation of different oils levels into diet had decreased feed intake [9], egg weight [21], feed conversion was not affected by supplementation [22] [23]. The data obtained from this study were consistent with some research findings that reported a decrease in egg weight [18] [19] [23] [24] when sesame oil was supplemented into diet for laying hens.…”