季节性同期发情处理对舍饲福清山羊繁殖性能的影响

刘远; 吴贤锋; 李文杨; 高承芳; 黄勤楼

doi:10.19303/j.issn.1008-0384.2019.02.010

季节性同期发情处理对舍饲福清山羊繁殖性能的影响

doi: 10.19303/j.issn.1008-0384.2019.02.010

福建省农业科学院畜牧兽医研究所, 福建福州 350013

基金项目:

福建省科技计划项目——省属公益类科研院所基本科研专项 2018R1023-11

福建省农业科学院科技创新团队建设项目 STIT2017-2-1

福建省农业科学院一般项目 AC2017-2

福建省农业科学院一般项目 A2017-9

详细信息

作者简介:
刘远(1985-), 男, 硕士, 助理研究员, 研究方向:肉羊高效养殖技术(E-mail:seayuan521@163.com)

通讯作者:
李文杨(1972-), 男, 副研究员, 研究方向:肉羊舍饲养殖关键技术(E-mail:516316606@qq.com)

中图分类号: S827
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出版历程
- 收稿日期: 2018-08-20
- 修回日期: 2018-10-30
- 刊出日期: 2019-02-28

Effect of Seasonal Estrus Synchronization on Reproductive Performance of Fuqing Goats

Animal Husbandry and Veterinary Instiute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China

摘要

摘要: 目的为提高舍饲福清山羊的繁殖效率，研究季节性同期发情处理对舍饲福清山羊繁殖性能的影响。方法采用PRID+PMSG+PGF_2α法分别在春、秋季节对舍饲福清山羊进行同期发情处理，观察处理山羊的发情情况，并比较分析同期发情处理与自然发情处理山羊的繁殖效率。结果舍饲福清山羊季节性同期发情处理的平均发情率为96.88%，平均受胎率为93.75%。在试验周期内，自然发情配种（对照组）的产羔总胎次低于季节性同期发情处理组（试验组）；对照组的胎产羔数和羔羊初生重均高于试验组（P > 0.05），但断奶活羔羊数却低于试验组（P > 0.05）；试验组母羊产羔间隔极显著低于对照组（P < 0.01），其年产胎次高达1.87胎，年供活羔数3.12只，比对照组提高了36.8%。结论研究初步证实利用季节性发情调控进行舍饲福清山羊的繁育生产，能提高羊群繁殖效率，具有一定的生产利用价值。
- 舍饲 /
- 福清山羊 /
- 季节性同期发情
Abstract: Objective Effect of seasonal synchronized estrus treatment on the reproductive performance of Fuqing goats was studied. Method PRID+PMSG+PGF_2α was used on the goats to artificially induce estrous cycles in spring and autumn in a dry lot to determine the treatment effects. Result An average rate of estrus occurrence at 96.88% with an average conception rate of 93.75% was achieved in the goats by the treatment. During the trial, the lambs born by natural estrus mating (control) was fewer than those by the treatment. On the other hand, the number per delivery and body weight at birth of the lambs in control group were higher than those in the treatment group (P>0.05), but the treated goats had more lambs survived after weaned (P>0.05). The interval between births of the treated goats was significantly shorter than that of control (P < 0.01). As a result, there were 1.87 births annually with 3.12 survived baby lambs among the treatment goats representing 36.8% increase over control. Conclusion The preliminary results suggested that the artificial regulation on the estrus of Fuqing goats could increase the reproduction and survival rate of the new born lambs.
- dry lot feeding /
- Fuqing goat /
- seasonal estrus synchronization

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表 1 试验日粮组成及营养水平(干物质基础)

Table 1. Composition and nutrition levels of experimental diets (on dry matter basis)

项目 Item	空怀、妊娠前期母羊日粮 Diet for barren and the early- pregnancy stage ewes	妊娠后期、哺乳期母羊日粮 Diet for late- pregnancy and lactation stage ewes
原料 Ingredients/%
玉米青贮 Maize silage	35	30
杂交狼尾草 Hybrid pennisetum	35	30
玉米 Maize	10	10
大豆粕 Soybean meal	10	18
麸皮 Wheat bran	8	10
磷酸氢钙 CaHCO₃	0.7	0.7
食盐 Salt	0.5	0.5
石粉 Stone powder	0.3	0.3
预混料 Premix	0.5	0.5
合计 Total	100	100
营养水平 Nutritional level
消化能 Digestible energy/(MJ·kg^-1)	5.43	6.58
粗蛋白 Crude protein/%	13.1	15.7
钙 Ca/%	0.45	0.47
磷 P/%	0.39	0.41
中性洗涤纤维 Neutral detergent fiber/%	48.39	41.48
酸性洗涤纤维 Acid detergent fiber/%	30.06	25.85
注：(1)每千克预混料中含有：VA 200 000 IU，VD 50 000 IU，VE 500 IU，Fe 2 g，Cu 0.75 g，Zn 3 g，Mn 4 g，I 50 mg，Se 20 mg，Co 50 mg。(2)除消化能为计算值外，其他均为实测值。 Note：(1)Containing VA 200 000 IU，VD 50 000 IU，VE 500 IU，Fe 2 g，Cu 0.75 g，Zn 3 g，Mn 4 g，I 50 mg，Se 20 mg，Co 50 mg per kg of premix. (2)Digestible energy was a calculated value, while the rest nutrient indices were measured values.

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表 2 季节性同期发情处理母羊的同期发情效果

Table 2. Efficiency of seasonal estrus synchronization treatment on female goats

同期发情处理时间 Time for synchronized estrus treatment/(yy-mm-dd)	同期发情处理母羊数 Number of synchronized estrus ewes	发情母羊数 Number of estrous ewes	同期发情率 Synchronization estrus rate/%	受胎母羊数 Number of conception ewes	受胎率 Conception rate/%
2016-09-25	32	31	96.88	30	93.75
2017-04-15	32	32	100	31	96.88
2017-10-15	32	30	93.75	29	90.63
平均 Average	32	31	96.88	30	93.75

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表 3 不同处理母羊群体的繁殖效率

Table 3. Reproductive efficiencies of Fuqing goats by different treatments

组别 Group	产羔总胎次 Born lambs	胎产羔数 Litter size	羔羊初生重 Lamb weight /kg	断奶活羔数 Number of lambs survived after weaned	母羊产羔间隔 Lambing interval of ewes/d	年产胎次 Yearly parity	年供活羔数 Number of live lambs per year
对照组 Control group	68	2.06±0.45	1.76±0.68	1.60±0.55	258.9±38.9	1.41	2.28
试验组 Treatment group	90	1.88±0.59	1.62±0.51	1.77±0.57	195.2±29.7	1.87	3.12
t值 t value	-	1.857	2.433	-1.869	8.954	-	-
Sig.	-	0.065	0.016	0.064	0.000	-	-

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