Nutritional and Economical Impact of Using Super Starter Diets in Feeding Broiler Chickens

Abstract

n experiment was conducted to study the effect of feeding recommended (23%, Diet 1) or high (25%, super starter, Diet 2) crude protein in starter diets on productive performance, carcass characteristics and economical efficiency of Hubbard broiler chickens. A total of 225, day old Hubbard broiler male chicks were randomly distributed into 5 treatments at (1-35) days of age, each with three replicates of 15 birds each. The five treatments were: T 1) Control group, chicks fed (Diet 1) ad-libitum the other treatments from T 2 till T 5 , chicks were fed (Diet 2)at different quantities being 125g, 250g, 375g and 500g/chick, respectively followed by (Diet 1) to the end of starter period (14 days of age). During grower and finisher periods, all chicks were fed recommended diets at these phases. At the end of experiment at 35 days of age, 4 broilers chicken per treatment were slaughtered and evaluated for carcass traits. The results indicate that: Body weight, body weight gain and feed intake were linearly increased, whereas feed conversion ratio decreased as super starter diet increased, during overall period (1-35 days of age). The best values of body weight gain, feed conversion ratio, protein and energy conversion ratio were observed for chickens fed 500g super starter diet compared with other dietary treatments. In most cases differences between treatments were significant (P≤0.01). Carcass characteristics of chicks fed super starter diet, added at different levels had no effects on carcass characteristics. The best economical efficiency value were demonstrated when broiler chickens fed (500g Diet 2 /chick) super starter diet and the values was 33.09% more when compared to that of chicks fed control diets. In conclusion, feeding broiler chickens super starter diet at level of (500g/chick) support and enhance productive performance and economical efficiency.

Validation of the Effect of Some Nutritional Manipulations on the Productive Performance of Broiler Chickens

“…Our findings agree with that reported by El-Faham et al, (2017) who mentioned that feed intake/per bird (g) was increased by feeding super starter diet at level of (25%) crude protein when compared to another treatment received crude protein at level (23%) protein. Mohsen et al, (2004) concluded that increasing crude protein level improve FC significantly (P<0.05) in broilers fed high CP 23 % for 1 to 10 days.…”

“…Sasyte., et al (2018) stated that the application of super pre-starter diet improved body weight by 3% in birds fed super pre-starter diet 22.5% crude protein compared to control group. El-Faham et al, (2017) reported that broiler chicks fed super starter diet (25.01% CP) at level of (500g/chick) for 14 days of age gave higher live body weight compared to control group (23% CP). Caker et al, (2006) showed no significant (P>0.05) effect of dietary supplementation of Syn (Biomin®IMBO) at level 1g/kg on BW of growing JQ from 1 to 42 day of age.…”

“…These results are in harmony with Sasyte et al, (2018) who showed that broiler chicks were fed super pre-starter diet 22.5% CP for eight days of age decreased feed conversion ratio by 3% during all the experimental period. El-Faham et al, (2017) reported that the values of FCR indicted significant differences between birds fed super starter diet (25% CP) compared to those fed diet (23% CP). FCR was improved significantly (P<0.05) in broiler fed high CP 23% compared to low diets CP 19% during the period from 1 -10 days of age (Mohsen et al, 2004).…”