■最密集的营养需求发生在牛奶生产高峰期。母羊牛奶比牛奶含有更多的蛋白质和脂肪。营养因素显著决定了组成。肝脏在哺乳期间承受高压力,但被必需的营养素缓解。胆碱在代谢上充当脂溶性药物。这种化合物在细胞结构构建中起作用,维护,和乙酰胆碱合成。动物营养行业提供各种来源的胆碱,如合成和天然种类。这项研究评估了两种不同的胆碱来源对奶牛围产期和产后产奶量的影响,composition,和后代的成长。
■二十四只朗布依埃母羊,每个重约63.7±1.7公斤,三岁,之前有两个孩子,在单独的围栏(2×2m)中度过了30天的产前和产后。根据随机设计,他们在出生前和出生后30天给予不同的实验治疗;没有胆碱(a),4克/天瘤胃保护胆碱(RPC)(b),或4克/天硫代胆碱(C)。在牛奶收集期间,每30天采集用于牛奶组成和长链脂肪酸(FA)分析的牛奶样品。
■母羊体重的显着差异(p<0.05),羔羊出生体重,由于胆碱治疗,在羔羊和哺乳期第30天观察到30天龄的羔羊体重。产奶量(1.57公斤/天)明显高于对照(1.02公斤/天)和RPC(1.39公斤/天),由于草药胆碱的来源。牛奶的蛋白质没有显著差异,乳糖,脂肪,非脂肪固体,和处理之间的总乳固体含量。草药胆碱降低(p<0.05)己酸的浓度,辛酸,Capric,月桂,和肉豆蔻酸,同时增强(p<0.05)油酸和顺式-11-二十碳烯酸,影响长链FA水平的变化(p<0.05)。
■从两种来源向母羊提供胆碱可以提高产奶量和产奶量以及产奶量和产奶量。草药胆碱补充剂改变了短链牛奶FAs,而代表性的浓度途径影响中链途径。
UNASSIGNED: The most intensive nutritional requirements occur during milk production\'s peak. Ewe milk contains more protein and fat than cow milk. The nutritional factors significantly determine the composition. The liver undergoes high stress during lactation but is relieved by essential nutrients. Choline acts metabolically as a lipotrope. This compound functions in cell structure construction, maintenance, and acetylcholine synthesis. The animal nutrition industry provides choline from various sources, such as synthetic and natural kinds. This study evaluated the influence of two distinct choline sources on dairy ewes\' peripartum and postpartum milk production, composition, and offspring growth.
UNASSIGNED: Twenty-four Rambouillet ewes, each weighing around 63.7 ± 1.7 kg, aged three with two previous births, spent 30-day pre-partum and post-partum in individual pens (2 × 2 m). They were given different experimental treatments 30 days before and after birth according to a randomized design; no choline (a), 4 g/day rumen-protected choline (RPC) (b), or 4 g/day thiocholine (c). Milk samples for milk composition and long-chain fatty acid (FA) analysis were taken every 30 days during milk collection.
UNASSIGNED: Significant differences (p < 0.05) in ewe body weight, lamb birth weight, and 30-day-old lamb body weight were observed at lambing and on day 30 of lactation due to choline treatment. Milk yield was significantly higher (1.57 kg/day) compared to the control (1.02 kg/day) and RPC (1.39 kg/day), due to the herbal choline source. There was no significant difference in the milk\'s protein, lactose, fat, non-fat solids, and total milk solids content between the treatments. Herbal choline lowers (p < 0.05) the concentrations of caproic, caprylic, capric, lauric, and myristic acids while boosting (p < 0.05) those of oleic and cis-11-eicosenoic acid, the changes influencing long-chain FA levels (p < 0.05).
UNASSIGNED: Providing choline from both sources to ewes enhanced milk production and body weight at lambing and on 30-day post-lambing. The herbal choline supplement altered short-chain milk FAs, while representative concentration pathways affected medium-chain ones.