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JAAST Table of Content: January - 2015, 3(1)

Short Communication

J. S. EKPO, N. B. Idiong, M. D. Udoh and U. A. Ukpana.     pp. 1 - 3

Performance Evaluation and Cost Iimplication of Young Boars Fed Agro-Inndustrial By-products Supplemented With Palm Oil

 

           

An experiment was conducted to evaluate the effect of replacing maize with composite cassava tuber meal(C), brewe rs dried grain (B) & palm oil (P) mixed thoroughly at the ratio of 65%, 25% and 10% respectively to form CBP - mix in pig diets. The CBP which had a crude protein content of about 10.54%cp, ME value of about 3.57 Mcal/kg and crude fibre (CF) content of about 7.87% was included at 0,75 and 100% levels in diets 1,2, and 3 respectively. Eighteen young boars were divided into three groups of 6 boars each and randomly allocated to these three diets. Each dietary treatment consists of 2 replicates with three boars in each replicate. The results show that dietary treatment did not have significant effect (P >0.05) on feed intake, daily weight and feed conversion ratio. The cost of producing a unit weight of pig was greatly reduced by replacing maize with CBP. CBP may therefore be used instead of maize in pig diets to reduce cost of feed and the total dependence on maize thereby enhancing farmer’s profit.

Keywords:  Composite cassava tuber meal, brewers dried grain, palm oil, performance, Boar.

Research Articles

1Shoyombo, A.J.*, 2Akpa, G.N, 2Yakubu, H., 3Musa, A.A, 2Attah, O. E.     pp. 4 - 10

AGE RELATED CORRELATION AMONG MORPHOMETRIC TRAITS OF SOME NIGERIAN GOATS

 

           

In an effort to further augment available literatures on correlated analysis of morphometric traits, a study was carried out using equal number from different breeds across age groups to evaluate the effect of age on correlated analysis of body morphometric traits in some Nigerian goats. Equal numbers of breed (Red Sokoto, Sahel and WAD), sex (Male and Female) and Age (<1year old, 1-2 years old and 2-3 years old) from Sokoto, Borno and Ogun state were sampled. A total of 900 goats were used for the study. Morphometric measures studied were BW: Body weight; HL: Horn Length; EL: Ear Length; SW: Shoulder width; NC: Neck circumference; BL: Body Length; WH: Wither Height; HG: Heart Girth; PG: Pouch Girth and TL: Tail Length respectively. Obtained data were subjected to correlation analysis based on age within breeds. Correlated relationships among morphometric measurements also varied with age in the general population and within breeds, but coefficients were generally low to moderate (-0.01 –0.58) with the exception of the relationship between HG and PG which were generally high (0.77-0.99). BW was both positively and negatively correlated with other measurements due to the effect of age.

Keywords:  Age, correlation, Morphometric traits, goats.


Okorocha E.O.A1., Dalyop, T.Y1., Olojede, A.O1., Ogbuji, R.O2., Nwauzor,E.C1.,Onyenobi F.Ijeoma3, Dung,E.A1 and Amadi,G1   pp. 11 - 14

INTEGRATED PEST MANAGEMENT STRATEGIES FOR THE CONTROL OF ROOT-KNOT NEMATODE MELOIDOGYNE SPP. INFESTATION OF LIVINGSTONE POTATO (PLECTRANTHUS ESCULENTUS) AND HAUSA POTATO (SOLENOSTEMON ROTUNDIFOLIUS POIR)

 

           

In a two year field and laboratory study, the efficacy of some integrated pest management strategies on control of root-knot nematode (Meloidogyne spp.) of Livingstone and Hausa potato in two separate experiments were evaluated in Kuru, Jos Plateau, Nigeria. The first experiment was set up in randomized complete block design comprising of two Livingstone varieties (Riyom and Loangat) with 9 treatments and three replications and the second experiment was in like manner but with only one variety of Hausa potato, same management treatments and same methodology. Analysis of variance results showed that for the two years 2009 and 2011 , for the Livingstone potato experiment, use of healthy planting stock and dipping in warm water were promising management practices that increased crop yield while application of 200kg/ha N.P.K. 15-15-15 Fertilizer and use of 2t/ha of wood ash at planting gave appreciable control of nematode symptom on the Livingstone potato tubers. However, management practices tested, neither showed any significant effect on growth and yield of Hausa potato nor on the damage symptoms on the tubers in those two years.

Keywords:  Livingstone Potato, Hausa Potato, Integrated Pest Management Strategies, Root-knot nematode.

 


Okorocha E. O.A1., Ogbuji, R.O2., Onyenobi F. Ijeoma3 and Echendu T.N.C.1   pp. 14 - 19

FIELD SCREENING OF CIP INTRODUCED SWEETPOTATO IPOMOEA BATATAS (L) LAM. CULTIVARS AT UMUDIKE FOR RESISTANCE TO ROOT-KNOT NEMATODES MELOIDOGYNE SPP.

 

           

The available International Centre for Potato (C.I.P.)-introduced sweetpotato varieties were field- grown and screened for their resistance to natural populations of root-knot nematodes in the National Root Crops Research Institute farm fields at Umudike. Results showed that Accession33 (Naspot 5); accession 36 (K134); accession 39 (Santo Amaro) and accession 5(CIP breeding line) were resistant while most of the other accessions were susceptible and a few, hypersusceptible. In addition, significant results were obtained for saleable tuber yield and the highest root yielder was found to be accession 50 (Cemsa, (476g)), followed by accession 4 (one of the CIP breeding lines). It was also observed that most of the orange fleshed accessions were susceptible while those that appeared resistant were poor root yielders. With the appearance of some sources of resistance in some accessions, it is expected that further breeding work will be carried on in order to develop more resistant sweetpotato varieties.

Keywords:  Sweetpotato, resistance, field screening, root-knot nematode, Meloidogyne sp.