Feeding low crude protein (LCP) diets supplemented with crystalline amino acids improves environmental and welfare parameters of broilers. However, increased body fat contents in broilers fed LCP have become a concern. Black soldier fly larvae oil (BSFLO), rich lauric acid, has been reported to inhibit lipogenesis reduce fat. A 3 × 2 factorial experiment was conducted evaluate the effect BSFLO on performance, blood biochemistry, carcass quality, metabolism gene expression, litter quality...

A completely randomized design experiment was conducted to determine the suitability of refused tea (RT) as a litter material for broiler chickens. Physiochemical properties RT were compared with paddy husk (PH). Subsequently, broilers raised on RT- or PH-based compare performances and qualities. Twenty-day-old chicks (n = 150) randomly allocated into 6 deep pens so that each treatment had 3 replicates. Chicks received 0.8 ft(2) floor spacing until d 28 1.3 thereafter. Each cage feeder...

The objective of this study was to compare the emission NH(3) from 3 types broiler litters. Three litter materials (refused tea, RT; sawdust, SDT; and paddy husk, PH) were randomly assigned into 18 cages. Twenty-day-old chicks (n = 216) allocated cages fed a commercial finisher diet 21 42 d. samples taken each cage on 36 subsamples pooled analyzed for moisture, pH, N. Litter incubated 5 h, emitted trapped with boric acid then titrated HCl determine emissions. RT (13.2 mg/kg per h) d 61% less...

Fenugreek (Trigonella foenum-graecum L.) is a medicinal plant having range of therapeutic, anti-microbial and growth promoting effects. Objective this study was to evaluate the effects fenugreek seed powder on performance, visceral organ weight, serum cholesterol levels nitrogen (N) retention broiler chicken. In Complete Randomized Design with six replicates, 108 chicks in 36 pens received one experimental diets containing either 0, 1, 2, 3, 4, 5% from day 21-38. The weight gain birds that...

The factors affecting purchasing and consumption of meat are diverse complex. objective this study was to understand the social cultural parameters associated with pattern southern province in Sri Lanka. Pre-tested structured questionnaire employed collect information from 265 consumers. All respondents consumed at least one kind animal product. Only 1 % did not consume any type meat. Eighty five percent had established their child age. religious believes (74 %), economic concerns (47 %)...

This study investigated the effects of supplemental Gly, Ser and Arg on growth performance, carcass traits, footpad dermatitis, litter ammonia emission broilers fed low-protein diets from 18 to 42 d age. A total 576 one-d old female Cobb 500 were divided into 6 dietary treatments; 1) control, high CP (HCP 20%), 2) medium (MCP 18%), 3) low (LCP 16%), 4) LCP + 0.20% Gly+Ser, 5) Arg, 6) Gly+Ser Arg. Although BW gain feed intake not affected by treatments, reducing (16% CP) increased FCR...

Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering wide range of subject areas in tropical subtropical agriculture published quarterly by the Faculty Agriculture, University Ruhuna, Sri Lanka. The also available on Ruhuna website https://www.agri.ruh.ac.lk/tare/index.htm .

Objective of this study was to determine whether the adverse effects associated with high dietary rice bran (RB) inclusion levels in broiler diets could be corrected by balancing for higher number amino acids (AA). The experiment followed a completely randomize design 2x4 factorial arrange-ment. Eight experimental were formulated using linear model based computer software (CUFATotal Feed). Treatment factors two RB (20 and 40%) four AA considerations ration formulation (1. lysine methionine,...

High NH3 emissions from poultry houses are reported to have negative impacts on health, welfare and safety of birds humans, the environment. Objective present study was determine effects two litter amendments levels in broiler closed under hot-humid conditions.Giving a completely randomize design, nine houses, each housed 32,500 paddy husk litter, were randomly allocated into treatment (Mizuho; bacterial culture mix Rydall OE; an enzymatic biocatalyst) control groups. determined thrice day...

Pouteria campechiana (Canistel) is an under-utilized tree fruit grown naturally in many tropical and sub-tropical regions. Objective of this study was to determine the effects dietary Canistel meal (CFM) on growth carcass parameters 3-6 week old broiler chicken. Ninety chicks 30 pens, were fed one five iso- proteomic finisher diets containing either 0 (control), 5, 10, 15 20% CFM from day 21 42. The level had no significant (P>0.05) final live weight 42, gain -42, water intake, dressing...

Rice bran (RB), a byproduct of rice milling process is valuable feed resource for the livestock industry. Both lipolytic and oxidative rancidity starts right after removed from grain during thereby making long term storage RB difficult. Anti oxidants such as butylated hydroxytoluene (BHT) control only short period time. Therefore, effective measures need to be adopted maintain nutritive feeding value RB. The objective this study was evaluate whether could curtailed by storing with citric...

Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering wide range of subject areas in tropical subtropical agriculture published quarterly by the Faculty Agriculture, University Ruhuna, Sri Lanka. The also available on Ruhuna website https://www.agri.ruh.ac.lk/tare/index.htm .

The objective of the present study was to determine effects gradual dilution broiler finisher diets with inert or less nutritive materials on growth performance, feed cost, and meat organoleptic properties. Broiler chicks (n=147) were allocated into 49 pens fed a mash diet (control) control diluted either cassava leaf meal (CLM), gliricidia (GLM), grass (GM), rice bran (RB), sand (SND), sawdust (SD). For given diluent, six prepared by mixing respective diluents (w/w) at 0% (fed from...

Official journal of the Postgraduate Institute Agriculture, University Peradeniya. Tropical Agricultural Research publishes complete accounts research outstanding significance, together with critical review articles on all aspects agriculture including agronomy and crop production, horticulture, agricultural biology, food nutrition, soil water resource management, engineering, economics, animal science, biotechnology, plant protection, genetics breeding.Tropical is now indexed in DOAJ.

Tropical Agricultural Research and Extension is a peer-reviewed international scientific journal covering wide range of subject areas in tropical subtropical agriculture published quarterly by the Faculty Agriculture, University Ruhuna, Sri Lanka. The also available on Ruhuna website https://www.agri.ruh.ac.lk/tare/index.htm .

Cost of quail feed formulations can be reduced substantially by using cheap cereal by-products such as rice bran (RB) at higher levels. The objective this study was to determine the maximum inclusion levels dietary RB with or without exogenous phytase, for laying Japanese quail. In a completely randomized design 3 x 2 factorial arrangement, 108 quails in 36 cages received six experimental diets ad libitum from 8 15 week. Experimental factors were three (20, 30 and 40%) two phytase (0 1000...

Objective of this study was to determine the contribution backyard chicken (BYC) egg consumption fulfill household nutrient requirement BYC keeping families in Sri Lanka. Egg production parameters 80 flocks and eggs derived from respective flocks, by households which managed those were determined for a period month. The significant quadratic relationship between percentage used no hens reared showed that 15 hens/household maximized (20/week). fulfilled 1.4% energy, 5.4% protein, 1.0%...

Rice bran (RB), a byproduct of rice milling process is valuable feed resource for the livestock industry. Both lipolytic and oxidative rancidity starts right after removed from grain during thereby making long term storage RB difficult. Anti oxidants such as butylated hydroxytoluene (BHT) control only short period time. Therefore, effective measures need to be adopted maintain nutritive feeding value RB. The objective this study was evaluate whether could curtailed by storing with citric...