Vázquez-García Juan M, Álvarez-Fuentes Gregorio, Orozco-Gregorio Héctor O, García-López Juan C, González-Hernández Milagros, Rosales-Nieto César A
Facultad de Agronomía y Veterinaria, Universidad Autónoma San Luis Potosí, San Luis Potosí 78321, Mexico.
Asociación Mexicana de Criadores de Ganado Caprino de Registro, San Luis Potosí 78433, Mexico.
Animals (Basel). 2021 Jan 23;11(2):287. doi: 10.3390/ani11020287.
We tested whether maternal energy supplementation during the last third of gestation improves birth weight, neonatal wellbeing, and mother-young bonding. Thirty-six pregnant French Alpine goats were randomly allocated among three nutritional treatments for the last third of pregnancy: (i) Control, fed alfalfa (T-0; = 12); (ii) alfalfa + 150 g/head daily energy concentrate (T-150; = 12); (iii) alfalfa + 300 g/head daily energy concentrate (T-300; = 12). At birth, we collected progeny data on birth weight, birth type, sex, rectal temperature, heart rate, respiratory rate, time to standing, time to udder connection, and time to first feeding. For the dams, we collected data on the duration of labor, time to clean the progeny, and time to allow first suckling. At birth, body weight, rectal temperature, heart rate, and the respiratory rate did not differ among treatments ( > 0.05). In the dams, labor duration was not affected by the treatments ( > 0.05). The T-150 dams were faster to clean the newborn and allow first suckling ( < 0.05). The T-150 progeny were faster to stand and the T-300 progeny were faster to connect to the udder ( < 0.05). We conclude that energy supplementation of the dam during the last third of gestation does not affect the birth weight of the progeny, but enhances the mother-young bonding.
我们测试了妊娠后期母羊能量补充是否能提高出生体重、新生儿健康状况以及母婴联结。36只怀孕的法国阿尔卑斯山羊在妊娠后期被随机分配到三种营养处理组：（i）对照组，饲喂苜蓿（T-0；n = 12）；（ii）苜蓿 + 每日每头150克能量浓缩物（T-150；n = 12）；（iii）苜蓿 + 每日每头300克能量浓缩物（T-300；n = 12）。出生时，我们收集了后代的出生体重、出生类型、性别、直肠温度、心率、呼吸频率、站立时间、与乳房接触时间以及首次进食时间等数据。对于母羊，我们收集了产程时长、清理后代的时间以及允许首次哺乳的时间等数据。出生时，各处理组的体重、直肠温度、心率和呼吸频率没有差异（P > 0.05）。在母羊中，产程时长不受处理的影响（P > 0.05）。T-150组的母羊清理新生羊和允许首次哺乳的速度更快（P < 0.05）。T-150组的后代站立更快，T-300组的后代与乳房接触更快（P < 0.05）。我们得出结论，妊娠后期母羊能量补充不影响后代的出生体重，但能增强母婴联结。
