An experiment was conducted to determine the effect of hatching egg size on hatchability and hatch-weight of indigenous Venda chickens (Gallus gallus domesticus). Three different egg size groups classified into small: (<49 g) medium: (50-59 g) and large:(60-69 g) were used in the experiment. A complete randomized design was used for the experiment. Simultaneously a quadratic type equation was u...

The potential of Sensi-1 Agrinak and KUB crossbred so-called SENKUB chicken as dual-purpose can be increased by selecting hatching egg weights to get DOC with good quality. study was conducted evaluate the grades eggs on production performances. complete randomized design applied in this experiment 3 treatments. treatments are (small 36-40 g, medium 41-45 large 46-50 g). process used two stages...

The breeding biology of Lophortyx californicus in North America has been described by Sumner (1935), Olading (1938), Howard and Emlen (1942), Oenelly (1955), Raitt (1960) and Lewin (1963); in the Hawaiian Islands by Schwartz and Schwartz (1949) and in New Zealand by Williams (1952,1959). Much more local information has now been gathered and this paper is concerned mainly with annual and local v...

A study was conducted to investigate the effect of feeding diets containing different levels of aflatoxin B1 (AF) viz., 0, 300, 400 and 500ppb on the performance of broiler breeders. The breeder hens aged 28 weeks were fed with four treatment diets: Control (0ppm), (300 ppb), (400 ppb) and (500 ppb) for three periods, each with a duration of three weeks from 28 to 36 weeks of age. Feeding of AF...

Nowadays, the poultry industry gives a lot of importance to costs management at all the steps of production. In broilers, the production of hatching eggs or Day-Old Chick (DOC) does not represent a high proportion of the overall cost of production per kg of bird slaughtered. Nevertheless, the performance of broiler breeder is looked with a lot of attention, and the number of saleable chicks per...

Eggs are an important and convenient source of protein for those living in rural regions. In addition, eggs from local hens popular traded a fair price. As result, the primary goal this study was to evaluate egg laying quality parameters Sakini (Gallus gallus domesticus) Nepal order better understand chicken’s reproductive fitness relationship between parameters. For this, total 120 different w...

Application of appropriate models to approximate the performance function warrants more precise prediction and helps to make the best decisions in the poultry industry. This study reevaluated the factors affecting hatchability in laying hens from 29 to 56 wk of age. Twenty-eight data lines representing 4 inputs consisting of egg weight, eggshell thickness, egg sphericity, and yolk/albumin ratio...

Abstract Semen quality and fertility in crossbreeding between white plumage black indigenous turkey hens using artificial insemination were investigated. Eighty-two healthy turkeys, comprising 72 (Thirty-two forty white) 10 toms (five five used. The turkeys grouped into four treatments based on the breeding plans: T1 (White X White hens), T2 (Black Black T3 hens) T4 hens). was harvested from to...

The sperm quality index (SQI) is a tool used to predict overall rooster semen quality, fertility, and hatchability. However, semen must be diluted before SQI analysis, and research has shown that the SQI is most predictive of fertility at lower semen dilutions. Therefore, the present study was undertaken to determine why the SQI is not as predictive of fertility at higher semen dilutions and wh...