本文選題：壩上長尾雞 + 生長發(fā)育�。� 參考：《湖北農(nóng)業(yè)科學(xué)》2016年02期

【摘要】：為研究壩上長尾雞育成期生長發(fā)育規(guī)律,選取660只壩上長尾雞(公雞331只,母雞329只)進(jìn)行試驗(yàn)。結(jié)果表明,壩上長尾雞育成期體重逐漸增加,其中8~20周齡白羽、黑羽、麻羽、白花公雞與母雞體重差異極顯著(P0.01),10~20周齡銀灰公雞與母雞體重差異極顯著(P0.01),8周齡銀灰公雞與母雞體重差異顯著(P0.05),蘆花公雞與母雞育成期體重差異不顯著(P0.05);8~20周齡不同羽色公雞體重差異不顯著(P0.05),8~20周齡蘆花母雞體重顯著大于白羽、黑羽、麻羽、白花、銀灰母雞(P0.05),10~20周齡銀灰母雞體重顯著小于白羽、黑羽、麻羽母雞(P0.05),18~20周齡銀灰母雞體重顯著小于白花母雞(P0.05)。隨著周齡的增加體重絕對生長值、相對生長率減小;育成期體斜長、龍骨長、脛圍、胸寬、胸深、脛長、骨盆寬呈增加趨勢,公雞的累積生長值極顯著大于母雞,其中體斜長、龍骨長、胸寬、骨盆寬的絕對生長值先增加后降低,體斜長和胸寬的絕對生長值在16周齡達(dá)到最大,龍骨長和骨盆寬在14周齡達(dá)到最大;胸深和脛長絕對生長值呈下降趨勢;脛圍在育成后期絕對生長值增加;所測得的公雞20周齡主尾羽長度多數(shù)達(dá)21 cm以上,最長達(dá)43 cm,母雞尾羽上翹,主尾羽長約10~21 cm,分兩側(cè)呈八字形。
[Abstract]:In order to study the law of growth and development of the long-tailed chickens in Bashang, 660 long-tailed chickens (331 cocks and 329 hens) were selected to carry out the experiment. The results showed that the body weight of Bazhang long tail chicken gradually increased during the growing period, among them, 820 weeks old white feather, black feather, hemp feather, white feather, black feather, hemp feather, The difference of body weight between White Flower Rooster and female Chicken is very significant P0.01 / 10 ~ (10) ~ (20) weeks old Silver Grey Rooster and hen's body weight difference is extremely significant (P 0.01) and 8 weeks old Silver Grey Rooster and female Chicken's body weight difference is significant (P0.05). There is no significant difference in body weight between Luhua Rooster and female Chicken (P0.05880 ~ 20 weeks old). There was no significant difference in the weight of the feather rooster (P 0.05). The weight of the 20 week old rutile hen was significantly higher than that of the white feather. The weight of black feather, hairy feather, white flower, silver grey hen was significantly smaller than that of white feather, and the weight of black feather was significantly lower than that of white feather, and the weight of silver hen at 1820 weeks was significantly lower than that of white hen P0.050.The weight of black feather was significantly lower than that of white feather, and the weight of black feather was significantly lower than that of white feather, and the weight of black feather was significantly lower than that of white hen. The relative growth rate decreased with the increase of body weight at the age of weeks, and the body length, keel length, tibia circumference, chest width, chest depth, tibia length and pelvic width showed an increasing trend, and the cumulative growth value of the cock was significantly larger than that of the hen, in which the body length was oblique. The absolute growth value of keel length, chest width and pelvis width increased first and then decreased, the absolute growth value of oblique length and chest width reached the maximum at 16 weeks old, the absolute growth value of keel length and pelvis width reached the maximum at 14 weeks old, the absolute growth value of chest depth and shank length showed a downward trend. The absolute growth value of tibial circumference increased in the later stage of breeding, and the length of the main tail feather of the male cock at the age of 20 weeks was more than 21 cm, the longest was 43 cm, and the tail feather of the hen was upwarped, the length of the main tail feather was about 10 ~ 21 cm, and the length of the main tail feather was octahedral on both sides.
【作者單位】： 河北農(nóng)業(yè)大學(xué)動(dòng)物科技學(xué)院;河北科技師范學(xué)院動(dòng)物科技學(xué)院;張家口市家畜綜合改良站;
【基金】：河北省現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系蛋雞產(chǎn)業(yè)創(chuàng)新團(tuán)隊(duì)項(xiàng)目 河北省高校創(chuàng)新團(tuán)隊(duì)領(lǐng)軍人才培育計(jì)劃項(xiàng)目(LJRC004)
【分類號】：S831

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