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Articles by E.M. Ngodigha
Total Records ( 3 ) for E.M. Ngodigha
  E.M. Ngodigha and E. Etokeren
  The objective of the study was to determine the optimum Holstein Friesian (HF) inheritance for an improved milk yield of HF x Bunaji (BJ) crossbred cows. Data of HF and BJ dairy cows with 50, 75, 87.5 and 100% HF inheritance kept at the West African Milk Company (WAMCO) farm in Vom, Plateau State, Nigeria, between 1998 and 2004 were used for the study. The independent variables considered included genotype, method of service, calf birth season and parity, while Total Milk Yield (TMY), Lactation Length (LL) and adjusted 305 days milk yield (Adj. 305-DMY) were the dependent variables. The data were analyzed with the General Linear Model (GLM) and where differences were observed, the least square mean obtained for the effects were compared using the Probability of Difference (PDIFF) procedure of Statistical Analysis System (SAS). Results showed that calf birth season and parity had significant (p<0.05) influence on TMY and LL. Only parity exerted a significant (p<0.05) effect on Adj. 305-DMY. Cows lactating during the early and late dry seasons produced significantly (p<0.05) more milk than those lactating in the early and late wet seasons. TMY was highest in the 2nd and 3rd parities.
  E.M. Ngodigha and N.J. Anyanwu
  Twenty Multi-Purpose Trees and Shrubs (MPTS) were ranked for their fodder potential based on degradation studies with rumen fistulated N’dama steers. Samples of oven-dried, one year re-growth leaf fractions of the 20 MPTS were milled to pass through a 2.5 mm screen in a laboratory mill. The oven-dried samples (5 g each) were put into nylon bags measuring 180x90 mm with a pore size of 41 μm. The bags were incubated in duplicates for 6, 12, 24, 48, 72 and 96 h in 3 rumen fistulated N’dama steers. The steers, aged about 3 years and weighing approximately 250 kg were grazed on a pasture of Panicum maximum supplemented with wheat bran at the rate of 2 kg/animal/day. At the end of each incubation period, the residues were dried to a constant weight at 60°C for 48 h in a forced air oven to compute Dry Matter (DM) disappearance. Results showed that E. cyclocarpum, S. spectabilis, B. monamdra and A. ferruginea were ranked in the high quality group, with Effective Degradability (ED) values >450 g kg-1 DM; T. superba, L. leucocephala and A. noipoides were ranked in the medium quality group with ED range of 400-450 g kg-1 DM, while P. bicolor, L. sericeus, P. santalinoides, X. xylocarpa and T. tetraptera belonged to the low quality group with ED values <400 g kg-1 DM. The study showed that MPTS with high effective degradability qualitatively can be used to enhance better live weight gains in ruminant animals.
  E.M. Ngodigha , E. Etokeren and O. Mgbere
  The objective of the study, was to determine the optimum Holstein Friesian (HF) inheritance for a shorter Age at First Calving (AFC) and Number of Services per Conception (NSC) on milk yield potentials of HF x Bunaji (BJ) crossbred cows. Data of HF and BJ dairy cows with 75, 87.5 and 100% HF inheritance kept at the West African Milk Company (WAMCO) farm in Vom, Plateau State, Nigeria, between 1998 and 2004 were used for the study. The independent variables considered included genotype, birth year, birth season and service season, while AFC and NSC were the dependent variables. The data were analyzed with the General Linear Model (GLM) and where differences were observed, the least square mean obtained for the effects were compared using the Probability of Difference (PDIFF) procedure of Statistical Analysis System (SAS). Results showed that calf birth year significantly (p<0.05) influenced AFC and NSC, while genotype was significantly (p<0.05) expressed in NSC only. With good management, the 87.5% HF crossbreed cows exhibited superior genetic potential (AFC and NSC). Breeding of the crossbreeds can be done in early wet season, when NSC is low and fertility is high.
 
 
 
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