用试乳日产奶量和羔羊体重预测阿瓦西羊的某些生产性状

IF 1.1 Q3 AGRICULTURE, MULTIDISCIPLINARY

IRAQI JOURNAL OF AGRICULTURAL SCIENCES Pub Date : 2023-08-29 DOI:10.36103/ijas.v54i4.1795

A. MuthannaF., Al-Juwari Lecturer Dept, Anim, Prod., Coll, Agric, Forestry

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引用次数: 0

摘要

本研究纳入摩苏尔大学农林学院两个季节(2011-2012)出生的155只Awassi母羊和199只羔羊记录。除断奶至180d增重(GW180d)外，年份对其他性状的影响均极显著。犊牛日产奶量(DMY)、初生重(BW)、断奶重(WW)和初生至断奶增重(GBW)受日龄影响显著。出生类型对180 d DMY、BW、WW和体重有显著影响。羔羊性别对WW、GBW的影响显著。DMY与总产奶量(TMY)、羔羊月重、GBW和GB180d的相关系数分别为- 0.46 ~ 0.99和-0.44 ~ 0.99。预测公式的R2值较高，预测TMY的R2值在0.81 ~ 0.99之间，预测180日龄羔羊体重的R2值在0.97之间。

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THE USE OF TEST-DAY MILK YIELD AND LAMBS WEIGHT FOR PREDICTION OF SOME PRODUCTIVE TRAITS IN AWASSI SHEEP

This study was included 155 records of Awassi ewes and 199 records of lambs born during two seasons (2011-2012), belonging to the College of Agriculture and Forestry, Mosul University. The effect of year was highly significant on all traits except for weight gain from weaning to 180 days (GW180d). Age of dam was significantly affected daily milk yield (DMY), birth weight (BW), weaning weight (WW) and gain from birth to weaning (GBW). Type of birth had significant effect on DMY, BW,WW and weight at 180 days. The effect of lamb sex on WW, GBW was significant. Significant correlations coefficient were observed between DMY and total milk yield (TMY), months weight of lambs, GBW and GB180d being ranged from 0.46 to 0.99 and -0.44 to 0.99 respectively. The R2 values of prediction equations were high and ranged between 0.81 to 0.99 to predict TMY, and 0.97 to predict lamb weight at 180 days.

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来源期刊

IRAQI JOURNAL OF AGRICULTURAL SCIENCES AGRICULTURE, MULTIDISCIPLINARY-

CiteScore

2.30

自引率

50.00%

发文量

140

审稿时长

6 weeks

期刊介绍： IRAQI JOURNAL OF AGRICULTURAL SCIENCES (IJAS)is the first agric. scientific and refereed journal established in Iraq. The first volume was published in 1966. IJAS is registered in the number 137 in 1988 of the Baghdad National Library. Years ago, it was published with one issue a year. For the time being, it is published bimonthly (6 issues for a volume). IJAS Deal with: Field Crops. Plant Breeding. Agricultural Economics. Agricultural Extension. Agricultural Mechanization. Basic sciences. Hort. Sciences. Animal Husbandry. Food Technology, Plant Pathology. Plant Entomology. Poultry Sciences. Soil Sciences. Water Resources. Veterinary. Biology.