Effects of strain, sex, and season on body weight development of cane rat (Thryonomys swinderianus) in the humid tropics

2017 ◽  
Vol 50 (1) ◽  
pp. 5-10
Author(s):  
Oluwatosin M. A. Jesuyon
Keyword(s):  
Body Weight ◽  
Humid Tropics ◽  
Thryonomys Swinderianus

scholarly journals Effects of strain, live weight and micro-environment on body weight development of cane rat (Thryonomys swinderianus) in the humid tropics

2020 ◽  
Vol 44 (1) ◽  
pp. 1-9
Author(s):  
O. M. A. Jesuyon ◽  
T. O. Bankole
Keyword(s):  
Body Weight ◽  
Interactive Effect ◽  
Live Weight ◽  
Positive Influence ◽  
Humid Tropics ◽  
Interactive Effects ◽  
Weight Category ◽  
Thryonomys Swinderianus ◽  
Feeding Regimes ◽  
Different Strains

Interactive effects of strain, live weight and a non-genetic factor namely micro-environment on the live weight development of cane rats reared in captivity were investigated over a seven-month period. A total of seventy-nine (79) cane rats (Thryonomys swinderianus) originating from three different sources (strains) and of four body weight categories were used for the study. The treatment design was 4x3 Factorial of Live-weightXStrain randomlyassigned to 3 Houses (block) using RCBD, while statistical analysis utilized GLM procedure of SAS® (1999). Data were recorded  monthly based on Treatment-combinations and House-micro-environment. Results revealed that effects of strain, live weight category and house-micro-environment on strains were significant. Consequently, interactive effect of strainXhouse-micro-environment was found most depressing on awole>FRIN>Bamidele, while strainXlive-weight category interaction exerted most positive influence on Lawole strain which demonstrated the highest ability for body weight development than other two strains. Findings revealed that interactive effect of STRxHME was most significant on weight development. Bamidele strain was identified as most acclimatized and adaptable of the three strains based on least body weight sensitivity and variation between HMEs. Different strains of cane rat in captive rearing systems would exhibit different and specific reaction norms under interaction of strain, Body weight and House-micro-environment. This knowledge is useful for feeding regimes, husbandry and reeding schemes for cane rats in humid tropics.

scholarly journals Growth response, nutrient digestibility and physical body measurements of Grasscutter (Thryonomys swinderianus) fed whole cassava (Manihot esculenta) root meal fortified with selected fermented protein sources

2018 ◽  
Vol 16 (2) ◽  
pp. 254-259
Author(s):  
OO Eniolorunda ◽  
HA Awojobi ◽  
AF Aluko ◽  
BS Olufemi
Keyword(s):  
Body Weight ◽  
Soybean Meal ◽  
Nutrient Digestibility ◽  
Pennisetum Purpureum ◽  
Final Body Weight ◽  
Thryonomys Swinderianus ◽  
Fermented Soybean Meal ◽  
Fermented Soybean ◽  
Cassava Root ◽  
Weight Gains

Grasscutter serves as a major tool for improved household income generation, nutrition and bio-diversity in Nigeria. It provides a quick turnover, foreign exchange earner and reduce unemployment rate of the country.In order to assess the feeding values of concentrates used as supplement, studies were conducted in captivity to evaluate the performance of Grasscutter (Thryonomys swinderianus) using 20 growing Grasscutters comprising 16 females and 4 males who were balanced for weight and grouped into four treatments. Inclusion of whole cassava meal that was incorporated at 80% of the total bulk acted as the control(T0) while 10% of whole cassava root meal was replaced by fermented soybean meal in (T1), fermented locust bean meal in (T2) and fermented melon seed meal in (T3) respectively were considered as experimental using a complete randomized design. Elephant grass (Pennisetum purpureum) was used as the basal diet and water were given ad libitum. There were significant difference in the final body weight gains (P<0.05) between treatments. The mean final body weights were 1175.0 ±302.01, 1266.7±302.01, 1215±302.01 and 1143.0±302.01g for animals on T0, T1, T2 and T3 respectively. The corresponding mean for final body weight gains were found to be 481±209.55, 536.7±209.55, 507±209.55 and 407±209.55g for T0, T1, T2 and T3 respectively. There were significant differences (P<0.05) in the trunk length in T1 over T2, T0 and T3 and were recorded at the level of4.78±0.19, 4.56 ±0.18, 4.55 ± 0.18 and 4.12 ± 0.16 respectively. The nutrient digestibility of CP, EE, NFE, ADF and ADL were significantly different (P<0.05). The whole cassava root that was combined with fermented soybean meal supported a highest growth rate than those of other treatments. It was therefore concluded that fermented soybean meal may be used as an ideal diet for sustainable Grasscutter production when whole cassava root is combined with this ingredient.J. Bangladesh Agril. Univ. 16(2): 254-259, August 2018

scholarly journals EFFECTS OF STOCKING RATE ON THE PERFORMANCE OF TWO HYBRIDS OF COMMERCIAL BROILERS IN THE HUMID TROPICS

2021 ◽  
Vol 13 ◽  
pp. 114-120
Author(s):  
J. A. Agunbiade ◽  
K. Benyi
Keyword(s):  
Body Weight ◽  
Average Daily Gain ◽  
Humid Tropics ◽  
Feed Consumption ◽  
Stocking Rate ◽  
Final Body Weight ◽  
Body Weights ◽  
Space Requirements ◽  
Stocking Rates ◽  
Daily Gain

The effects of four stocking rates (0.070, 0.093, 0.116 and 0.140m2/ bird) on the performance of two hybrids of commercial broilers were investigated. There were significant hybrid effects on initial and final body weights (P< 0.01) and on feed effici­ency (P <0.05) but not on average daily gain and feed consumption and mortality. Stocking effects which were not signi­ficant for initial body weight, feed efficiency and mortality were highly significant for final body weight, average daily gain and feed consumption, (P < 0.01). There were significant interactions bet­ween hybrid and stocking rate for average daily gain (P <0.01) and mortality (P < 0.05). It is suggested that in the humid tropics, the stocking rates of 0.116 and 0.140m2/ bird would be appropriate for rearing broilers. The results of the study also show­ed that different hybrids do vary on space requirements in respect • of certain produc­tion traits.

Estimation of variance components for body weight of grasscutters (Thryonomys swinderianus) using a repeatability model

2020 ◽  
Vol 47 (2) ◽  
pp. 33-36
Author(s):  
I. Udeh
Keyword(s):  
Animal Model ◽  
Body Weight ◽  
Variance Components ◽  
Genetic Parameters ◽  
Growth Potential ◽  
Likelihood Method ◽  
Mass Selection ◽  
Thryonomys Swinderianus ◽  
Estimate Variance ◽  
Estimation Of Variance

Genetic parameters for growth and other economically important traits of grasscutters are scant in literature. Therefore, the aim of this study was to estimate variance components,heritability and repeatability of body weight of grasscutters using restricted maxim um likelihood method in a repeatability animal model. Sixteen grasscutter families were used for the study. Each family was made up of one male and four females. Each grasscutter has four repeated records giving a total of 320. The pedigree consisted of 80 animals, progenies of 16 sires and 16 dams. Fixed factors included in the model were family and sex. The WOMBAT program was used for the analysis. The heritability of body weight of grasscutters ranged from 0.23±0.04 to 0.68±0.10, thus implying that mass selection will be appropriate for this population. The repeatability estimates ranged from 0.82±0.08 to 0.93±0.11. It can be concluded that the number of body weight records was a good indicator of the animal's growth potential and that mass selection will be reliable.

Effect of ruminally protected methionine on body weight gain and growth of antlers in red deer (Cervus elaphus) in the humid tropics

2011 ◽  
Vol 44 (4) ◽  
pp. 681-684 ◽  
Author(s):  
Paula Mendoza-Nazar ◽  
Germán David Mendoza-Martínez ◽  
José Herrera-Haro ◽  
Benigno Ruiz-Sesma ◽  
Ricardo Bárcena-Gama ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Cervus Elaphus ◽  
Red Deer ◽  
Body Weight Gain ◽  
Humid Tropics

scholarly journals OPTIMUM PROTEIN AND ENERGY LEVELS FOR LOCAL AND EXOTIC EGG-TYPE, CHICKENS IN THE HUMID TROPICS

2021 ◽  
Vol 9 (1) ◽  
pp. 35-43
Author(s):  
F. C. Obioha ◽  
B. O. Asuquo ◽  
F. N. Agomoh
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
Energy Levels ◽  
Humid Tropics ◽  
Nutrient Requirements ◽  
Feed Cost ◽  
Overall Performance ◽  
The Tropics

The development of indigenous stock in the tropics must be accompanied by an evaluation of their nutrient requirements alongside those of the adapted exotic stock. In two separate experiments, a total of 28 dietary combinations of protein (18% — 24%) and metabilisable energy (2.6-3.2 Mcal/kg) were assessed using four lines of exotic, local and ex­otic x local crosses of 0-8 week old starter pullets. A combination of 2.8 Mcal/kg with 24% (E2.8 P24) gave the best overall performance, while E3.0 P24 gave the best feed efficiency. However, diet ELA Pis gave the least feed cost per unit of body weight gain of all the 28 diets. It is therefore suggested as the op­timum diet. The four genetic lines manifested wide variations in their performance values but showed no separate requirements for protein or energy.

Prediction of body weight from body measurements in canerat: Thryonomys swinderianus (Temminck, 1827)

2010 ◽  
Vol 7 (1) ◽  
Author(s):  
O.A Jayeola ◽  
S.A Onadeko ◽  
K.O Ademolu ◽  
O.M Awofeso
Keyword(s):  
Body Weight ◽  
Body Measurements ◽  
Thryonomys Swinderianus
Sign in / Sign up

Export Citation Format

Share Document