Lambs of Yankasa sheep were evaluated for effects of genetic and environmental factors on their body weights at birth, 3,6,9 and 12 months of age. The lambs were born between 1981 and 1985 in an on-going accelerated lambing programme at National Animal Production Research Institute (NAPRl), Nigeria, Type of birth significantly affected weights from... Continue Reading
An economic analysis of experimental data was conducted to determine the optimum levels of the feed ingredients and to assess their individual contributions to egg production. Twelve experimental rations were subjected to three production function analysis, namely quadratic, square root and Cobb—Douglas functions. The Cobb-Douglas function w... Continue Reading
Three cowpea (vigna unguiculata (L. ) walp) lines were selected based on their per cent crude protein and used as parents in crosses in the following combinations: 2/180—4—12 (High) x 11/48-2 (Low); 2/180-4-12 (High) x L—25 (Low) and 11/48-2 (Low) x L—25 (Low). In the first cross the -following generations were obtained ... Continue Reading
Determination of the peel content of cassava tuber, nutrient composition of cassava peel and four trials were conducted to evaluate the nutritive value of cassava peel meal in pig diets. Cassava peels constitute 11 .80% of cassava tuber on dry matter basis. The rind on the other hand constitute 8.05% of cassava on dry matter basis. Results of the c... Continue Reading
The soils of the Nigerian savanna are generally low in sulphur and the production of leguminous crops such as soybean is therefore dependent on adequate sulphur fertilisation. This study was carried out to evaluate the response of soybean to sulphur under greenhouse conditions and on the field. For the greenhouse study, five representative soils we... Continue Reading
An experiment was conducted at the National Horticultural Research Institute Farm Bagauda, Kadawa (11o39'N,8ÂÂ�02'E) in the Northern Guinea Savanna Ecological zone during 1992/93 dry season to determine the effect of varying nitrogen levels and intra-row spacing on the growth and yield of water melon (Citrullus lunatus Thumb.) under irrigation. T... Continue Reading
A study was conducted using 20 Bunaji bulls with a live weight range of 210-249kg, and age range of 2-3 years to evaluate the feeding value of raw or parboiled rice offal as energy source for bull fattening. Four bulls per treatment were allotted to five dietary treatments in a 2x2 factorial arrangement with a common control. Feeding and metabolism... Continue Reading
The effect of Sitophilus zeamais infestation was evaluated on 10 maize varieties, comprising nine Quality Protein Maize (QPM) varieties (SAMMAZ 14, SAMMAZ 17, SAMMAZ 19, SAMMAZ 32, SAMMAZ 33, SAMMAZ 36, SAMMAZ 37, FLINT-Q and DENT-Q) and one non-QPM variety (SAMMAZ 20) which served as check. The experiment was conducted during two seasons; cold-dry... Continue Reading
The aim of this study was to determine the mode of gene action that controls percent oil, to estimate correlation coefficient between oil content with agronomic traits, to determine direct and indirect relationships between oil and agronomic traits and to estimate heterosis for oil content. Sweet corn white and sweet corn yellow were used as high o... Continue Reading
Two field experiments were conducted during the 2011/2012 dry season at the Irrigation Research Station (IRS) of the Institute for Agricultural Research (IAR), Kadawa and Kadawa Village, Kano State. Treatment evaluated consisted of two varieties of sweet pepper (California Wonder and Tattasai Dan-Garko), three nitrogen rates (50, 75 and 100 kg N ha... Continue Reading
Field experiments were conducted in 2010-2011 and 2011-2012 dry seasons at Research Farm of the Institute for Agricultural Research, Samaru and Kadawa to study the productivity of tomato in response to NPK fertilizer and green manure rates. The treatments consisted of two tomato varieties (Roma VF and UC82B), four NPK 15-15-15 fertilizer rates (0, ... Continue Reading
A study was conducted to evaluate the performance of the trypanotolerant Muturu Cattle kept under traditional village management system in the trypanosomiasis endemic southern guinea savanna of Benue State. In the first study, surveys were conducted during the rainy season months of May - July 1990 to obtain base line data on systems of management,... Continue Reading
Proximate composition of cooked sweet potato meal (CSPM) was determined using AOAC (1990) methods. Four experiments were conducted with two set of birds. The first two experiments were carried out to determine the optimum level of utilization of cooked sweet potato meal (CSPM) in broiler diets and the variety of preference in the second experiments... Continue Reading
Trypanosomosis in the Savannah Brown (SB) breed of goat was evaluated in a two phase investigation. The first phase involved the study oi the prevalence of natural trypanosomosis in the SB goat in its natural habitat of the Guinea and Sudan Savannah zones of Northern Nigeria. The study which spanned 28 months involved the random examination of 717 ... Continue Reading
A three year trial (2004-2006) was conducted to assess the performance of three forage legumes, Stylosanthes hamata(L) Taub. cv Verano, Chamaecrista rotundifolia (Pers) Grenne cv Wynn and Centrosema pascuorum Mart. ex Benth (Centurion) cv Cavalcade in range rehabilitation. The first phase of the trial covered a period of sixteen months when the fea... Continue Reading