Evaluation the birth weight of the Shami Cyprus goats in (winter and summer) in Kassala State: Sudan
Omer Mohammed Omer Musa, Atif Osman Mohammed Ahmed
This study aimed to evaluate the kids weight of the Shami Cyprus goats in intensive system the study included the 458 kids weight of the Shami Cyprus as the following: to determine the weight of kids (the average birth weight, sex birth weight, twins birth weight, twins rate, in two seasons (winter and summer) The kids were weighed immediately following delivery at their birth and recorded at balance weight. The overall average means of birth weight of Shami Cyprus kids were (3.96±0.39) Kg. male kids were (4.28±0.50) and female single kids were (3.86±0.40) kg in winter, while The means value of single male kids and single female kids in summer were (3.87±0.35) kg, (3.41±0.33) kg respectively, in both seasons we found that the single male kids were significant (p< 0.01) heavier than the single female kids, this might be due attributed to the male sex hormone secretion from gonads which had some anabolic effect during pre-natal life. The single birth kid heavier than twins birth kid, birth weight were (4.50 ±0.40) – (3, 86 ±0.30) kg in the winter for the single and twins respectively while in summer (4.01±0.35) kg – (3.50±0.33) kg for the single and twins respectively. The single birth kid heavier than twins birth kid all these might be due to attributed to limitation of the uterine environment for twin and triplet, as the number of fetuses increase, the number of caruncles attached to each fetus decrease, thus reducing the feed supply to the fetus and hence reduction in the birth weight of the kids. the birth weight and rate of kids in the winter was higher significantly (P<0.01) than that rate kids born in summer These might be due to better pasture condition in pre-winter period plus Environmental circumstances affect the number of ovaries ovulating and undergoing conception, and also the number of young born.