Audigé L J, Wilson P R, Morris R S
Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand.
Prev Vet Med. 1999 May 14;40(1):53-65. doi: 10.1016/s0167-5877(99)00009-4.
A 2-year longitudinal observational study of 15 red-deer farms was carried out in New Zealand from March 1992. Seven hundred yearling hinds were individually monitored for reproductive success. After mating, hinds were pregnancy tested by ultrasound and were classified as having conceived before 1 May, after 1 May, or as being not pregnant. Risk factors potentially affecting the probability of conception before 1 May or of conception that year were investigated using path analysis. To increase the probability of conceiving early, this study suggests yearling hinds should be selected prior to mating for high bodyweight and height. Young stags and hinds should be joined late summer (14 months of age) before mating. Mobs of yearling hinds should not be combined with large mobs of adult hinds. Paddocks with limited gullies, hills and trees should be chosen for mating. Finally, paddocks for mating should be away from human disturbance. To increase the probability of yearling hinds conceiving that year, yearling hinds should be in moderate-to-low body condition (around 2.5), and nutrition during mating should be prioritised to ensure optimal growth rates. Short and/or lightweight hinds may be mated successfully if they are well fed but they generally conceive later. Trees should be limited in the mating paddocks.
1992年3月起，在新西兰对15个红鹿养殖场进行了为期两年的纵向观察研究。对700只一岁母鹿的繁殖成功率进行了个体监测。交配后，通过超声波对母鹿进行妊娠检测，并将其分类为在5月1日前受孕、5月1日后受孕或未受孕。使用路径分析研究了可能影响5月1日前受孕概率或当年受孕概率的风险因素。为了提高早期受孕的概率，本研究建议在交配前选择体重和身高较高的一岁母鹿。年轻的雄鹿和母鹿应在交配前的夏末（14个月大）合群。一岁母鹿群不应与成年母鹿大群合并。应选择沟壑、山丘和树木有限的围场进行交配。最后，交配围场应远离人为干扰。为了提高一岁母鹿当年受孕的概率，一岁母鹿的身体状况应处于中低水平（约2.5），交配期间应优先保证营养，以确保最佳生长速度。短和/或轻的母鹿如果喂养良好也可能成功交配，但它们通常受孕较晚。交配围场中的树木应有限。
