Presented To

Department of Agriculture


Parent stocks (PS) of exotic hybrids have contributed immensely to commercial poultry
production in Nigeria. Their continued optimal utilization depends on their performance test.
Information on performance indices of PS layer breeds in South-West Nigeria is however
limited. The growth, reproductive performance and seasonal sensitivity of Bovan Nera (BN)
and Isa Brown (IB) hybrids were evaluated.

Secondary data on 24 batches of PS of each of BN and IB kept over a period of 10 years (1999-
2008) in Ajanla Farms, Ibadan were used. Average batch population was 3896 pullets and 600
cockerels at point-of-lay. Records on Body Weight (BW), Age, Hen-Day-Production (HDP),
Egg Weight (EWt), Egg fertility (EF), Egg Hatchability (EH), Pullet Day-Old Chicks produced
(PDOC) and Hatching Rejects (HR) in four seasons: Early-Wet (EW, April-July); Late-Wet
(LW, August-October); Early-Dry (ED, November-January) and Late-Dry (LD, February-
March) were obtained. Data were standardized and analysed for growth, Age-at-first-egg
(AFE), HDP characteristics, reproduction, seasonal sensitivity, genotype-season interaction
using descriptive statistics, ANOVA, correlation and regression (p=0.05).

There was no significant difference in BW (g) and growth rate (g/day) between hybrids:
1724.8±562.8 and 1549.8±543.3; 1.4±2.3 and 1.1±1.6 for BN and IB hens, respectively. Effect
of seasons on AFE was not significant in both hybrids, but ED and LD seasons delayed AFE.
The HDP values (%) recorded for BN (63.2) and IB (72.9) in ED were significantly higher than
in other seasons. There were significant differences in EF (80.8 and 88.7%), EH (69.1 and
73.6%), PDOC (32.6 and 36.1%) and EWt (56.2 and 59.9 g) for BN and IB respectively in EW
season. EF (86.2 and 89.5%) and EH (73.1 and 73.9%) in LW were highest within hybrids
respectively. Phenotypic correlation (r) between Age and Hen Weight, Age and EWt, Hen
Weight and EWt, EF and EH, EF and PDOC, and EH and PDOC were 0.78, 0.74, 0.68, 0.73,
0.72 and 0.98 in BN; and 0.77, 0.52, 0.53, 0.69, 0.71, and 0.97 in IB respectively. The positive
and significant correlation between HR and EWt (r = 0.14 and 0.13), for BN and IB
respectively, indicated increase in HR as EWt increased. The environmental performance in
body weight of both hybrids was significantly depressed before 10 weeks in cocks and
throughout the life cycle of hens, except at 10 to 16 weeks in the BN hen. Performance
depression was also observed in HDP (-10.2%), EF (-6.9%) and EH (-14.4%) in IB, and EWt (-
2.9 and -3.2%) in both genotypes respectively over their life-time period. Predictions of BW by

  • 08144786223

About E-Project Material Centre

E-Project Material Centre is a web service aimed at successfully assisting final year students with quality, well researched, reliable and ready made project work. Our materials are recent, complete (chapter 1 to Minimum of Chapter 5, with references) and well written.INSTANT ACCESS! INSTANT DOWNLOAD. Simply select your department, choose from our list of topics available and explore your data

Why Students Love to Use E-Project Material ?

Guaranteed Delivery Getting your project delivered on time is essential. You cannot afford to turn in your project past the deadline. That is why you must get your project online from a company that guarantees to meet your deadline. e-Project Topics Material Centre is happy to offer instant delivery of projects listed on our website. We can handle just about any deadline you send our way. Satisfaction Guaranteed We always do whatever is necessary to ensure every customer's satisfaction


E-Project Topics Material Centre will only provide projects as a reference for your research. The projects ordered and produced should be used as a guide or framework for your own project. The contents of the projects should be able to help you in generating new ideas and thoughts for your own project. It is the aim of e-Project Topics Centre to only provide guidance by which the projects should be pursued. We are neither encouraging any form of plagiarism nor are we advocating the use of the projects produced herein for cheating.

Terms and Condition

Using our service is LEGAL and IS NOT prohibited by any university/college policies You are allowed to use the original model papers you will receive in the following ways:
  • As a source for additional understanding of the subject
  • As a source for ideas for you own research (if properly referenced)
  • For PROPER paraphrasing ( see your university definition of plagiarism and acceptable paraphrase) Direct citing ( if referenced properly)
Thank you so much for your respect to the authors copyright