Md. Hasanur Alam

Bangladesh Agricultural University | BAU · Department of Animal Science

Bovine growing oocytes with a diameter of 105-115 μm from early antral follicles (1.2-1.8 mm) are able to resume meiosis, but lack the competence to mature to metaphase II. To confer full maturation competence onto the oocytes, culture systems which can support their growth and prevent their meiotic resumption during culture are needed. In this stu...

The role of oocytes in follicular antrum formation is not well understood. We examined the effect of oocyte-derived growth factors, growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15), on the formation of antrum-like structures by cultured bovine oocyte-granulosa cell complexes (OGCs). OGCs containing growing oocytes (1...

Background: Oocyte growth is accompanied by follicular development in mammalian ovaries. Since the discovery of two oocyte-derived factors, growth differentiation factor 9 (GDF9), and bone morphogenetic protein 15 (BMP15), knowledge of the bidirectional communication between oocytes and granulosa cells for ovarian function and fertility has been a...

The present study was aimed to know the effects of feeding systems on follicular development in Black Bengal goats. Nine female post-weaned Black Bengal goats were randomly assigned to 3 feeding systems namely stall feeding, tethering and grazing. After 240 days of rearing, goats were slaughtered and ovaries were collected for morphometric analysis...

The present study aimed to determine the effects of dietary energy levels on follicular development and in vitro maturation of oocytes in pre-pubertal goats. Thirty-six female six-month-old stall-fed Black Bengal goats were divided into three equal groups that were randomly assigned to receive three iso-nitrogenous diets containing different levels...

This study aimed to determine the effect of L-carnitine on the growth and subsequent nuclear maturation of buffalo small growing oocytes (92–108 µm in diameter) in vitro. Oocyte-granulosa cell complexes (OGCs) were dissected from early antral follicles of slaughtered buffaloes and cultured in in vitro growth (IVG) medium with the supplementation of...

Buffaloes have low fertility due to silent estrus, seasonal anestrous, delayed puberty and long calving interval. This study was aimed to investigate the effect of single and double doses of prostaglandin F2alpha (PGF2a) on synchronization of estrus in buffaloes. A total of 66 buffaloes were selected and subjected to estrus synchronization experime...

The present study was carried out to know the effect of feeding soybean-based milk replacer on post-weaning growth and blood parameters of milk replacer-fed and naturally suckled goat kids. Twenty four Black Bengal kids were allocated into two groups; treatment group (n=12, 6 male and 6 female) was reared artificially with milk replacer, and contro...

The present study was aimed to compare the production status and management practices of crossbred buffaloes between small scale and commercial farms in Bangladesh. The data were collected through personal interview from the individual respondent. The study revealed that duration of buffalo rearing was mostly practiced for more than two years. Vari...

The present study was aimed to determine growth and blood parameters of soybean based milk replacer fed kids and naturally suckled counterparts in three villages of Mymensingh Sadar, Bangladesh. Twelve Black Bengal kids were allocated into two treatment groups; one group (n=6) was reared with milk replacer while the other (as control; n=6) was rear...

Background: Vitrification, ultra-rapid cooling can be used to cryopreserve oocytes for embryo technology. The objective of this study was to evaluate the effects of sucrose and glycerol on vitrification of buffalo oocytes. Methods: Cumulus-oocyte complexes (COCs) were aspirated from slaughtered buffalo ovaries. In experiment 1, the vitrification...

Background: Vitrification, ultra-rapid cooling can be used to cryopreserve oocytes for embryo technology. The objective of this study was to evaluate the effects of sucrose and glycerol on vitrification of buffalo oocytes.Methods: Cumulus-oocyte complexes (COCs) were aspirated from slaughtered buffalo ovaries. In experiment 1, the vitrification sol...

This study examined the crop livestock interaction in agrarian zone of Bangladesh. Quantitative data were collected with a questionnaire from a sample of randomly selected 458 respondents through personal interview. Two categories of respondent participated, such as old conservational agriculture research or farmer group and new conservational agri...

This study examined the utilization of crop residues in agrarian zone of Bangladesh. Two categories of respondent participated in this study, such as old conservational agriculture research or farmer group and new conservational agriculture research or farmer group. Data were analyzed using both descriptive and inferential statistics. Crops grown w...

Purpose The effects of estradiol on oocyte development seem to be varied among species. The present study investigated the effects of 17β‐estradiol on in vitro maturation of buffalo and goat oocytes. Methods Cumulus oocyte complexes (COCs) were aspirated from large antral follicles of slaughtered buffalo and goat ovaries. COCs were cultured in TCM...

Vitrification, a method of rapid cooling, is an alternate method of cryopreservation of oocytes and embryos. This present study was aimed to examine the effect of polyvinylpyrrolidone (PVP) on vitrification of buffalo oocytes. Cumulus oocyte complexes (COCs) with fully grown oocytes (120-130 µm in diameter) were aspirated from slaughtered buffalo o...

Vitrification, a method of rapid cooling, is an alternate cryopreservation method of oocytes and embryos. The present study was aimed to examine the effect of polyvinylpyrrolidone (PVP) on vitrification of buffalo oocytes. Cumulus oocyte complexes (COCs) with fully grown oocytes (120-130 µm in diameter) were aspirated from slaughtered buffalo ovari...

This study examined the crop livestock interaction in agrarian zone of Bangladesh. Quantitative data were collected with a questionnaire from a sample of randomly selected 458 respondents through personal interview. Two categories of respondent participated, such as old conservational agriculture research or farmer group and new conservational agri...

Stem cell factor (SCF) plays important roles in primordial follicle activation, oocyte growth and survival, granulosa cell proliferation, theca cell recruitment, and ovarian steroidogenesis. The aim of this study was to investigate the effect of SCF on in vitro growth of buffalo oocytes. Oocyte-granulosa cell complexes (OGCs) were dissected from ea...

The title was Kit ligand enhances growth and nuclear maturation of buffalo oocytes in vitro.

In this study, the seed germination inhibition technique was applied to diagnose pregnancy of indigenous sheep and Black Bengal goat. The urine samples collected from six pregnant ewes and does served as positive group and the urine from six non-pregnant animals served as negative group. In both the cases, the urine was diluted at the ratio of 1:4...

The aim of this study was to know the effects of postpartum re-mating intervals on reproductive performances of does and growth of kits. Fifteen female New Zealand White crossbred rabbits were divided into three groups of equal numbers. They were re-mated within 24 hours, at 10 days and 28 days postpartum. Animals were individually caged in cells m...