Effect of commercial guar meal (CGM) on the performance and nutrient utilization in broilers

Abstract

A biological trial was undertaken to study the effect of inclusion of graded levels of commercial guar meal (CGM) in diet on the performance and nutrient digestibility in commercial broiler chickens. A total of 350 oneday- old broiler male chicks (Cobb 400) were reared on wire floor electrically heated battery brooders. The chicks were randomly divided into 7 groups. Each treatment had 10 replicates of 5 chicks each. All the groups received iso-nitrogenous and iso-caloric diets. First group was fed maize-SBM; 2nd, 3rd and 4th groups were fed control diet during pre-starter phase (1–14 days), later (starter and finisher phase) CGM was incorporated at 6, 12 and 18% respectively, replacing SBM. In rest 3 groups (5th, 6th and 7th), CGM was incorporated at 6% during pre-starter phase followed by (starter and finisher phase) incorporation of CGM at 6, 12 and 18% respectively. The results showed that body weight gain (BWG) was significantly better at 6% CGM inclusion and depressed at 12 and 18% CGM. There was no significant effect of non-inclusion of CGM in juvenile phase on BWG; though feed intake did not differ significantly by CGM inclusion but FCR was significantly higher at all inclusion levels of CGM (6, 12 and 18%). The slaughter parameters, nutrient digestibility, serum parameters did not differ significantly. It can be concluded that CGM could be incorporated up to 6% (60 g/kg diet) in broiler diets without affecting growth performance, nutrient utilization and slaughter variables.

Rearing Performance and Carcass Composition of Broiler Chickens Fed Rations Containing Guar Meal at Graded Levels

“…The share of specific fractions in guar meal is also associated with the content of crude fibre, which is little desired by poultry. The examined guar meal contained nearly twice more (7.78%) fibre than guar beans, in which a low content of fibre (4.1% and 5.13%) was determined by Pathak et al [51] and Rao et al [28]. In contrast, its level was lower (9.3%) than in beans analysed by Ahmed et al [52].…”

“…However, compared to the control birds, chickens fed rations with 10% of guar meal were observed to have bigger livers (p ≤ 0.05), while bigger gizzards were characteristic of those receiving feed containing less guar meal (7.5%). Rao et al [28] did not note any significant influence of 6%, 12% and 18% of guar meal added to feed rations for broiler chickens on the dressing percentage, breast yield, giblet weight, abdominal fat and the weight of heart and liver.…”

“…In the first week of the experiment, the ambient temperature was 32 • C. Afterwards, it was reduced every seven days by 1-2 • C until it reached about 2 • C in the final week of rearing. The 42-day chicken period was divided into three feeding phases: starter (days 1-21), grower (days [22][23][24][25][26][27][28][29][30][31][32][33][34][35] and finisher (days [36][37][38][39][40][41][42]. The feed rations were all in mash form.…”

“…In view of a higher content of crude protein, methionine and phosphorus in relation to soybean meal, adding guar meal to poultry feed may be an efficient strategy for cutting down on the feeding cost with no adverse effect on production [25]. However, the use of a high percentage of this source of plant protein in poultry feed is limited due to the observed undesirable effects, including diarrhoea, reduced growth rate, deteriorated productivity and increased mortality rate [26][27][28]. The usage of guar meal in broiler diets limits the level of anti-nutrients such as guar gum (β-mannan), saponins and trypsin inhibitors.…”

PATRICIA trie based time and memory optimization for fast network motif Search

“…Network motif searching has many applications including its use in bioinformatics in identification of genes responsible for diseases in humans and animals and biotic and abiotic stresses in plants etc. Motif detection can be applied for the identification of TFBS using the nucleotide sequences of livestock species (Rao et al 2014), genetic improvement of livestock species, drug discovery etc. Network motifs were defined for the first time as pattern of interconnections occurring in complex networks in numbers that are significantly higher than those in the randomized networks (Milo et al 2002).…”