在怀孕前和怀孕期间,子母的饮食中富含生物活性化合物的丰富改善了在炎热的气候下生产和生殖性能以及成本效益
Mohamed E El-Speiy1, Moustafa M Zeitoun2, Mohamed A El-Sawy1
1Animal Production Research Institute, Agriculture Research Center, Giza, Egypt.
Tropical animal health and production
|October 11, 2024
概括
用蜜蜂花粉,蜜蜂产品,枣树花粉和共生菌补充雌性子显著改善了它们的繁殖和生产能力. 在炎热的沙漠条件下,这些自然饮食提高了 litter 尺寸,后代存活率和孕产妇健康.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 营养科学 营养科学
背景情况:
- 子养殖对于肉类生产至关重要,但性能往往受热气候等环境压力因素的限制.
- 探索用天然产品补充饮食以提高动物生产力和生殖效率.
研究的目的:
- 评估共生 (SY),蜜蜂花粉 (BP),蜜蜂 (HB),枣树花粉 (DPP) 和它们的混合物 (MIX) 对雌性子的生产和繁殖表现的影响.
- 评估这些补充剂对孕产妇健康,料效率和沙漠炎热气候下的后代特征的影响.
主要方法:
- 七十二名加利福尼亚人被随机分配到六个组:对照组 (蒸水),SY,BP,DPP,HB和MIX.
- 补充剂在交配前10天口服,并在28天的怀孕期间口服,并重复四次.
- 关键指标包括性接受度,生育率,点火率, litter 尺寸和重量,存活率,母亲的料摄入量,料转换比率 (FCR) 和营养消化能力.
主要成果:
- 补充剂显著增加了母亲的体重和每日增加,特别是在BP,SY和MIX组.
- 与对照组相比,所有治疗组都显示了改善的料摄入量和FCR.
- 接受治疗的婴儿表现出每次受孕的服务减少, litter 尺寸和体重增加,出生和断奶时的生存率更高,乳生产增加. 所有营养素的消化率都显著提高.
结论:
- 用蜂蜜产品,枣树花粉,蜜蜂花粉和共生菌混合的食补充剂有效地改善了子的生产和繁殖表现.
- 这些天然补充剂对后代的发育和生存有积极的影响,为在具有挑战性的环境中增强养殖提供了可行的策略.
相关概念视频
01:41Spermatogenesis
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...
00:55Parental Care
Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and birds, which often have young that are born relatively helpless. Several species of insects and fish, as well as some amphibians, also care for their young.
01:07Teratogenicity
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
01:23Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics
Respiratory symptoms, such as congestion and cough, commonly accompany respiratory tract conditions. Various medications, such as antitussives, expectorants, and mucolytics, play crucial roles in providing relief.
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla. Benzonatate operates peripherally within the respiratory tract by anesthetizing...
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla. Benzonatate operates peripherally within the respiratory tract by anesthetizing...
01:30Development of Human Microbiota
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
01:28Development of the Oral Microbiota
The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...