نتایج جستجو برای: lactation cycle
تعداد نتایج: 288077 فیلتر نتایج به سال:
Mammary glands are unique to mammals, with the specific function of synthesizing, secreting, and delivering milk to the newborn. Given this function, it is only during a pregnancy/lactation cycle that the gland reaches a mature developmental state via hormonal influences at the cellular level that effect drastic modifications in the micro- and macro-anatomy of the gland, resulting in remodeling...
Background: Humulus lupulus (Hops) is well-known throughout the world as the raw material in the brewing industry. In addition, hops have been found to have estrogenic and antioxidant properties. The object of this study aimed to examine the effects of hops during gestation and lactation on the onset of puberty, estrus cycle, reproductive organ weights and fertility index in female mice. Metho...
The objectives of the study were to compare the ovarian activity of Holstein-Friesian (CH HF), Fleckvieh (CH FV) and Brown Swiss (CH BS) dairy cows of Swiss origin with that of Holstein-Friesian (NZ HF) dairy cows of New Zealand origin, the latter being used as a reference for reproductive performance in pasture-based seasonal calving systems. Fifty, second-lactation NZ HF cows were each paired...
The yak is primarily found throughout the Tibetan high plateau and the surrounding mountainous area of south central Asia; among its others attributes, its milk is very important for the local population. A key concern in the field of yak research is the better understanding of which genes control the production and composition of milk. The most accurate and sensitive method for gene expression...
The effect of two diets with different fibre contents was examined on rabbit does’ performance and parasitological infection. Diet P2 had 1% higher crude fibre, ADF starch than that diet P1. 12–12 does litters per group were during consecutive inseminations. In both dietary groups, according to a 49-day reproduction rhythm, the artificially inseminated 18 days after kindling. Most production tr...
Lipid changes were studied histochemically in the ovarian interstitial tissue of untreated and hormone-treated rats during the oestrous cycle, pseudopregnancy, pregnancy and lactation. The hormones tested were LH, prolactin and oestradiol benzoate, alone or in combination. Conspicuous lipid changes occurred only in response to LH.
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