Comparative analysis of lactation patterns of Xinjiang Donkey in Eastern Xinjiang Region and Xinjiang Donkey in Southern Xinjiang Region

doi:10.6048/j.issn.1001-4330.2025.02.026

Abstract

Abstract:

【Objective】To study the difference of milk yield and lactation regularity of Comparative analysis of lactation patterns of Xinjiang Donkey in Eastern Xinjiang Region and Xinjiang Donkey in Southern Xinjiang Region.【Methods】In this study, 65 healthy Xinjiang Donkey in Eastern Xinjiang Region were selected from half house feeding and half grazing. 70 farmed Xinjiang Donkey in Southorn Xinjiang whose lactation curve was fitted by inverse polynomial model, cubic model and sixth-degree polynomial model to explore the difference of lactation regularity of donkeys in different areas of Xinjiang. The optimal regression model was established based on body size traits and average monthly milk yield, which was used as the prediction model of milk level under semi-grazing and semi-house feeding conditions. 【Results】The results showed that the sixth-degree polynomial model had the best fitting effect on the lactation curve of Xinjiang donkeys. The lactation peak was longer in eastern Xinjiang, and the average daily milk yield and peak milk yield of Xinjiang Donkey in Eastern Xinjiang Region were better than that of Xinjiang Donkey in Southorn Xinjiang. The regression model of body size and milk yield in eastern Xinjiang could be used as a prediction model of lactation level under semi-grazing and semi-house feeding condition【Conclusion】The lactation performance of semi-herding and semi-herding Xinjiang Donkey in Eastern Xinjiang Region is better than that of the donkeys in southern Xinjiang.

Key words: Xinjiang Donkey in Eastern Xinjiang Region; Xinjiang Donkey in Southorn Xinjiang; lactation regularity; feeding and management; body measure

摘要：

【目的】研究新疆东疆地区新疆驴和南疆地区新疆驴产奶量及泌乳规律的差异。【方法】选取65头东疆地区(半舍饲半放牧)新疆驴;70头南疆地区(舍饲)新疆驴;通过逆多项式模型、立方模型、六次多项式模型拟合泌乳曲线,探究东疆地区新疆驴和南疆地区新疆驴泌乳规律差异。利用体尺性状与月均产奶量建立最优回归模型,作为其半放牧半舍饲条件下的泌乳水平预测模型。【结果】六次多项式模型对新疆驴泌乳曲线拟合效果最优,东疆地区新疆驴泌乳高峰更长,日均产奶量及峰值产奶量东疆地区新疆驴均优于南疆地区新疆驴。东疆地区新疆驴体尺与产奶量的回归模型可作为半舍饲半放牧条件下泌乳水平预测模型。【结论】新疆东疆地区半舍饲半放牧新疆驴泌乳性优于南疆地区(舍饲)新疆驴。

关键词: 东疆地区新疆驴, 南疆地区新疆驴, 泌乳规律, 饲养管理, 体尺

CLC Number:

S822

ZHANG Guowei, CHEN Bin, LIU Wujun. Comparative analysis of lactation patterns of Xinjiang Donkey in Eastern Xinjiang Region and Xinjiang Donkey in Southern Xinjiang Region[J]. Xinjiang Agricultural Sciences, 2025, 62(2): 484-493.

张国威, 陈斌, 刘武军. 新疆东疆地区新疆驴和南疆地区新疆驴泌乳规律差异比较[J]. 新疆农业科学, 2025, 62(2): 484-493.

Figures/Tables 20

References 22

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类型 Parity	模型 Model	泌乳曲线 Location curves	R²	SSE	RMSE
东疆地区新疆驴 Xinjiang Donkey in Eastern Xinjiang Region	Ⅰ	Y=X/(0.970 5+0.355 6X+0.001 667X²)	0.228 4	9.498	0.449 5
南疆地区新疆驴 Xinjiang Donkey in Southern Xinjiang Region	Ⅰ	Y=X/(0.352 6+0.445 6X+0.000 439 8X²)	0.259 3	9.374	0.446 6

类型 Parity	模型 Model	泌乳曲线 Location curves	R²	SSE	RMSE
东疆地区新疆驴 Xinjiang Donkey in Eastern Xinjiang Region	Ⅰ	Y=X/(0.970 5+0.355 6X+0.001 667X²)	0.228 4	9.498	0.449 5
南疆地区新疆驴 Xinjiang Donkey in Southern Xinjiang Region	Ⅰ	Y=X/(0.352 6+0.445 6X+0.000 439 8X²)	0.259 3	9.374	0.446 6

类型 Parity	模型 Model	泌乳曲线 Location curves	R²	SSE	RMSE
东疆地区新疆驴 Xinjiang Donkey in Eastern Xinjiang Region	Ⅱ	Y= 1.435+0.033 64X-0.000 298 0X² +2.860e^(-7)X³	0.818 7	2.231	0.220 2
南疆地区新疆驴 Xinjiang Donkey in Southern Xinjiang Region	Ⅱ	Y=1.510+0.024 80X-0.000 218 4X² +3.558e^(-7)X³	0.802 2	2.503	0.233 3

类型 Parity	模型 Model	泌乳曲线 Location curves	R²	SSE	RMSE
东疆地区新疆驴 Xinjiang Donkey in Eastern Xinjiang Region	Ⅱ	Y= 1.435+0.033 64X-0.000 298 0X² +2.860e^(-7)X³	0.818 7	2.231	0.220 2
南疆地区新疆驴 Xinjiang Donkey in Southern Xinjiang Region	Ⅱ	Y=1.510+0.024 80X-0.000 218 4X² +3.558e^(-7)X³	0.802 2	2.503	0.233 3

类型 Parity	模型 Model	泌乳曲线 Location curves	R²	SSE	RMSE
东疆地区新疆驴 Xinjiang donkey in Eastern Xinjiang Region	Ⅲ	Y= 2.148+0.004 309X -0.000 940 4X² +5.250e^(-5)X³ - 8.828e^(-7)X⁴+5.86e^(-9)X⁵ -1.367e^(-11)X⁶	0.973	0.082	0.076
南疆地区新疆驴 Xinjiang donkey in Southern Xinjiang Region	Ⅲ	Y= 2.011+0.025 08X -0.002 857X²+ 0.000 103 5X³ -1.493e^(-6)X⁴ +9.297e^(-9)X⁵ -2.107e^(-11)X⁶	0.942	0.105	0.098