Ahmad Ali1,*, Sheikh Muhammad Azam2, Khalid Javed Iqbal1, Ghulam Mustafa1 and Mujahid Kaleem3
..., respectively. Six days estrous cycle and 107 days gestation period was observed in tigress. Mortality of one cub of 32 days in August, 2013 and second cub in Jannaury, 2014 of 173 days was observed due to congenital abnormality of liver. Parent tigress (Rani) was also died in May, 2014 due to respiratory failure and cardiac arrest and female cub died in 2005 due to canabalism.
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Zhongquan Zhao*, Tianyuan Yang, Lei Qiao, Qijie He and Zinuo Dai
... duration of the natural estrous period of Dazu black goat (41.4±8.6 h) was longer than these reported goat breeds and was not significant difference among the different litter sizes does in the breed. The semen quality was high in different seasons. Dazu black goats might have shorter gestation period (147.9±1.7 days) and have longer kidding interval (237.8±4.6 days). The percentages of singletons, twins, triplets and quadruplets born wer...
Asim Faraz1*, Abdul Waheed1, Muhammad Mudasser Nazir2, Aneela Hameed3, Nasir Ali Tauqir4, Riaz Hussain Mirza1, Hafiz Muhammad Ishaq1, Rana Muhammad Bilal5
...oductive anomalies are anestrous, the development of corpus-luteum cysts, follicular ovarian cysts, delayed age at puberty, repeated estrous cycles, dystocia, abortions, dead fetuses and retention of the fetal membranes. OT administered exogenously or secreted endogenously, establishes in minutes the desired effects and metabolized to inactive products rapidly in the body. Irrespective of whether OT is ingested with milk or ...
Amit Sharma1* and Pankaj Sood2
Sonographic Assessment of Ovarian Follicular Dynamics during Breeding and Non-Breeding Season in Gaddi Goats
...arried out during a full estrous cycle in breeding (B; January-February, n=7) and 21 days in non-breeding (NB; May-June, n=11) seasons. Blood sampling on alternate days was done during both the seasons for serum progesterone (P4) estimations. Follicular growth was characterized by presence of three to five numbers of follicular waves in both seasons. Significantly higher (P<0.01) number of follicular waves (4.0±0.21 versus 3.18±0.12), number o...
Muhammad Younis1, Muhammad Irfan-ur-Rehman Khan1*, Mustansar Abbas1, Ali Murtaza1, Imran Mohsin2, Muhammad Shahzad3 and Muhammad Zahid Tahir1
...es concentrations during estrous cycle of Lohi sheep. Ovaries of nine Lohi ewes were monitored for two consecutive estrous cycles using B-mode trans-rectal ultrasonography during the breeding season (Sep-Nov 2018). Plasma progesterone and estradiol-17β concentrations were determined throughout the cycle using radioimmunoassay. The average length of the estrous cycle in Lohi sheep was ...
Weihao Chen1, 2, Zhilong Tian1, Lin Ma1, Shangquan Gan3, Wei Sun2, 4* and Mingxing Chu1*
...circadian rhythms in the estrous mode of mammals. In the present study, the expression patterns of six canonical clock genes (Clock, BMAL1, Cry1, Cry2, Per1 and Per2) were analyzed in year-round estrous rams (Small Tail Han sheep, STH) and seasonal estrous rams (Sunite sheep, SNT). The result showed that all six genes were expressed in brain, cerebellum, hypothalamus, pituita...
Xiaoyun He1, Yongfu La2, Jinxin Wang1, Ran Di1, Qiuyue Liu1, Xiangyu Wang1, Wenping Hu1 and Mingxing Chu1*
...ct during every stage of estrous cycle (P<0.05) between Small Tail Han (STH) sheep and Tan (T) sheep. There were significant differences in genotype distribution between STH sheep and T sheep at T1235C and AG2357-2358 CT sites (P<0.01). The results of haplotypes analysis indicated that H2, H7 were preponderant haplotype in high prolificacy sheep breed. The litter size of TT genotype was significantly higher than that in CC genotype at T1235...
Mohamed Abd El-Fattah Abo-Farw1, Maged Ahmed Aboul-Omran1, Abdel-Khalek El-Sayed Abdel-Khalek2*
...elayed the resumption of estrous and ovarian activity and decreased pregnancy rate, antioxidant status, thyroid and reproductive hormones and trace elements such as Zn and Se.
Keywords | Mastitis, Buffaloes, Pregnancy rate, Antioxidant, Trace elements.
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Abhishek Pandit1, Suman Poudel2, Manish Gautam3* and Shambhu Shah4
...fers to manipulating the estrous cycle or inducing heat in a vast number of females in a given time period. Ovulation can be controlled by interrupting or influencing the wave-like follicular growth pattern. Estrus synchronization is achieved by shortening or prolonging the luteal phase using prostaglandins or exogenous progestogens, respectively. The selection of protocol depends on the assessment of resources, including facilities, labor, experience, and bud...
Umar M. Bello1*, Samuel A. Ojo1, Abdurrahman Ghaji1, Ambrose A. Voh (Jr)2, Muazu N. Bappah3, Casmir O. Igbokwe4
...e and parabasal cells. Oestrous vaginal smear cells were highly cellular and consisted predominantly of superficial nucleated cells. Metestrus and Diestrus phases were markedly similar with respect to cell population and distribution. Metestrus phase showed drastic reduction in number of superficial cells and the proportion of leucocytes in smears began to rise while the desquamation of parabasal and intermediate cells with leucocytosis characterized the di...
Ghulam Jelani1, Qudratullah Kalwar1*, Asmatullah Kaka2, Abdullah Channo2, Ayyaz Ahmed1, Majid Hussain Soomro1, Hidayatullah Soomro1, Deepesh Kumar Bhuptani1 and Yar Muhammad Jalbani1
...ive biotechnologies like estrous synchronization, artificial insemination, superovulation, cloning, embryo recovery and its transfer, in vitro fertilization, cryopreservation and transgenesis. Among these technologies, embryo transfer has achieved a great importance having produced numerous offspring from a genetically superior female. After the first successful transfer of mammalian embryos in 1890, it was approximately 60 years before significant progress be...
Saleh Aljubran, Shaker Al-Suwaiegh, Yousef Alyousef, Sulaiman Alhajri, Mohammed Alghareeb, Abd El-Nasser Ahmed Mohammed*
...itro embryo production, oestrous synchronization, superovulation, embryo transfer, germ cells or embryos’ micromanipulation, sperm sexing, cryopreservation of ovarian tissues and germ cells and embryos, and genome resource banking for mammalian species. Such biotechnologies allow more offspring to be obtained from selected parents to increase milk and meat productivity, reduce the interval between generations, therapy of diseases and conservation of enda...
Shah Murad Khan1, Hamayun Khan1, Younas Muhammad1, Haq Aman Ullah1*, Muhammad Tariq Tunio2, Ali Gohar2 and Fazli Rabbani3
...5). Induction of fertile estrous was maximum in POP group than MSS, but conception rate in cows receiving TAI was significantly higher in MSS than POP group (66.66% vs 33.33%;). Efficiency of MSS protocol was virtually double than POP for estrus synchronization and conception in Achai cattle....
Khadija Begum, Azizunnessa and Md Ahaduzzaman*
...ductive disorders were anestrous (72.25%, 276/382), followed by retained placenta (6.8%, 26/382), and repeat breeding syndrome (4.19%, 16/382). Significant variation in prevalence estimates was observed considering the season (P=0.02) but not the age (P=0.59), BCS (P=0.65) or breed (P=0.97) of the animal. Different types of therapeutics were used for the treatment of reproductive disorders in goats, including nutritional supplements (62.68%, 173/276) that were...
Rini Widyastuti1*, Rangga Setiawan1, Nurcholidah Solihati1, Siti Darodjah1, Kundrat Hidajat1, Mochamad Ali Mauludin2, Alkaustariyah Lubis3, Mas Rizky Anggun Adipurna Syamsunarno4, Sigit Prastowo5, Takdir Saili6, Arief Boediono7
...their goats in the first estrous cycle, leading to an early first delivery age of approximately 12 months. Farmers in Simpay Tampomas Farmers Group generally had adequate knowledge of reproductive physiology but little experience in managing dairy farming goats, leading to suboptimal reproductive performance.
Keywords | Dairy goat, Reproductive management, Breeding practice, Reproductive performance
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Roni Pazla1, Mardiati Zain1*, Fauzia Agustin1, Yetti Marlida1, Zaituni Udin2, Jaswandi2, Masrizal2, Hendri2, Windu Negara3, Totti Tjiptosumirat3, Ezi Masdia Putri3, Multiviza Muslim4
... the percentage of first estrous in sixteen heifers at 12-15 m and averaging 100.09 kg in a randomized block design with a 2 x 2 x 4 factorial pattern, where factor A represented crude protein, and factor B represented the TDN level of the ration. The treatment combinations were A1B1 (CP 10% and TDN 60%), A1B2 (CP 10% and TDN 65%), A2B1 (CP 12% and TDN 60%), and A2B2 (CP 12% and TDN 65%). The results revealed a significant interaction between factors concernin...
Roni Pazla1, Mardiati Zain1*, Fauzia Agustin1, Yetti Marlida1, Zaituni Udin2, Jaswandi2, Masrizal2, Hendri2, Windu Negara3, Totti Tjiptosumirat3, Ezi Masdia Putri3, Multiviza Muslim4
... the percentage of first estrous in sixteen heifers at 12-15 m and averaging 100.09 kg in a randomized block design with a 2 x 2 x 4 factorial pattern, where factor A represented crude protein, and factor B represented the TDN level of the ration. The treatment combinations were A1B1 (CP 10% and TDN 60%), A1B2 (CP 10% and TDN 65%), A2B1 (CP 12% and TDN 60%), and A2B2 (CP 12% and TDN 65%). The results revealed a significant interaction between factors concernin...
Gokarna Gautam1*, Sajan Rokaya1, Bhuminand Devkota1, Saroj Sapkota2
... were non-cyclic (true anestrous) as indicated by inactive ovaries and below basal level (<1ng/ml) plasma progesterone concentration. In conclusion, there was a clear seasonality pattern of reproduction in buffaloes in subtropical regions of southern Nepal with the autumn being the good and the spring being the low breeding as well as calving seasons; and 53% of buffaloes during low breeding season were in true anestrous ...
Muhammad Yusuf1*, Abd Latief Toleng1, Sahiruddin1, Masturi1, Hasrin1, Musdalifa Mansur2, Hendrikus Fatem3, Johan Koibur4
...ifers after treated with estrous synchronization using Heasynch and Select Synch protocols. The study was conducted in Maiwa Breeding Centre (MBC) Farm of Hasanuddin University. A total of 18 dairy Holstein Friesian heifers were used in the present study. The heifers were then divided into two groups based on different treatments of estrous synchronization. All heifers were examined for ovarian activities prior to synchroniz...
Gokarna Gautam1*, Hari Adhikari1, Bhuminand Devkota1, Subir Singh2
...ductive performance of anestrous buffaloes during low breeding season.
Keywords | Buffalo, Low breeding season, CIDR, Ovsynch, Pregnancy, Corpus luteum
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