Horses

Hafez, E. S. E.; Hafez, B.

doi:10.1002/9781119265306.ch14

Cited by 49 publications

(73 citation statements)

References 49 publications

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“…However, the values of progressive motile cells were significant but inconsistent with the level of onion and garlic supplementation used in the present study. Also, the sperm count, which tended to lie slightly above the range of 30-70 (×10 6 /nl) as reported by Hafez and Hafez (2000), is significantly influenced by increased inclusion of onion and garlic. According to this study, increased inclusion of 5 g onion and 5 g garlic optimized progressive motile cells, while 2.5 g onion and 2.5 g garlic optimized sperm count, which implies that different semen characteristics are influenced differently at different inclusion levels of onion and garlic.…”

Section: Discussionmentioning

confidence: 51%

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Semen quality characteristics of Koekoek breeder cocks influenced by supplemental inclusion levels of onion and garlic mixture at 35-41 weeks of age

Okoro

Mbajiorgu

2016

R. Bras. Zootec.

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-An experiment was conducted to determine the effect of varying dietary supplemental inclusion levels of onion and garlic mixture on semen quality characteristics of Koekoek breeder cocks aged 35-41 weeks. The experimental diets were isocaloric and isonitrogenous but with different supplemental inclusion levels of onion and garlic. A complete randomized design was used for the experiment. The three dietary supplemental levels based on garlic and onion supplemental inclusion levels were Q 0 (0 g onion and 0 g garlic per 600 g DM feed), Q 1 (2.5 g onion and 2.5 g garlic per 600 g DM feed), and Q 2 (5 g onion and 5 g garlic per 600 g DM feed) with each treatment having three replicates. A quadratic type equation was used to determine the onion and garlic levels for optimum semen quality characteristics. Daily supplementation with 5 g onion and 5 g garlic per 600 g DM feed increased progressive motile cells (%), actual life sperm count (×10 6 /nl), and live sperm (%) by 221.20%, 301.51%, and 352.43%, while 2.5 g onion and 2.5 g garlic per 600 g DM feed reduced them by 28.67%, 12.69%, and 19.00%, respectively. However, daily supplementation with 2.5 g onion and 2.5 g garlic per 600 g DM feed increased sperm count (×10 6 /nl) by 12.82%, whereas daily supplementation with 5 g onion and 5 g garlic per 600 g DM feed reduced it by 10.26% in Koekoek breeder cocks. Dietary onion and garlic supplemental inclusion levels of 3. 009, 3.191, 4.621, 6.601, 6.719, 2.327, 2.385, and 2.247 g per 600 g DM feed supported optimum progressive motile cells (%), immotile sperm cells (%), actual dead sperm count (×10 6 /nl), actual live sperm count (×10 6 /nl), live sperm (%), acrosome morphology defects (%), acrosome detachment (%), and acrosome swelling (%), with probability values ranging from 0.003 to 0.783, whereas minimum progressive motile cells (%) increase was achieved at an optimum onion and garlic supplementation levels of 3.009 g per 600 g DM feed. These findings have a lot of implications on the use of supplemental onion and garlic inclusion levels to enhance reproductive efficiency in Koekoek breeder cocks.

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Section: Discussionmentioning

confidence: 51%

“…However, Hafez and Hafez (2000) reported semen volume and pH ranging from 0.2-0.5 mL, and 7.2-7.6 in domestic cockerels. This shows a little variation which could be accounted for by the age of the cocks, being adult birds.…”

Section: Discussionmentioning

confidence: 98%

Semen quality characteristics of Koekoek breeder cocks influenced by supplemental inclusion levels of onion and garlic mixture at 35-41 weeks of age

Okoro

Mbajiorgu

2016

R. Bras. Zootec.

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“…its average width was 4.12 µm with a head area of 32.75 µm (Susilawati et al 1999). X sperm contains more chromatin in its head than that of Y sperm, leading to a bigger head size in X sperm (Hafez and Hafez 2000).…”

Section: Resultsmentioning

confidence: 99%

Morphometry and abnormality evaluation of sex-sorted sperm of spotted buffalo (Tedong bonga)

2017

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Abstract. Kaiin EM, Gunawan M, Maulana T. 2017. Morphometry and abnormality evaluation of sex-sorted sperm of spotted buffalo (Tedong bonga). Nusantara Bioscience 9: 175-180. This research aimed to determine the morphometry and the abnormality of the spotted buffallo (Tedong bonga) sperm after the separation of X and Y-chromosome-bearing sperms. Semen was collected from the spotted buffalo bull by using an artificial vagina.The semen quality was evaluated macro-and microscopically. Semen that met the required standard were subjected to separation by using Bovine Serum Albumin (BSA) 5% and 10% column method. The quality of sex-sorted sperm was evaluated microscopically, including motility, concentration, viability, abnormality and intact plasma membrane. Smear preparation using Eosin-Nigrosin dyes was made for sperm morphometry and abnormality evaluation.The evaluation of sperm morphometry and abnormality was conducted on 200 sperm cells for each observation and repeated in triplicates of observation, by using Axiovision Imager Z microscope at objective and ocular magnifications 40x and 10x, respectively.The morphological parameters observed were including the length and the width of head sperm and the head area of sperm X or Y. The abnormality parameter consisted of primary and secondary abnormalities. The data were analyzed descriptively. The results showed that the head size of the Y sperm of spotted buffalo (27.16 µm 2 ) was smaller than that of the X sperm (29.86 µm 2 ) with the abnormality of the Y sperm (7.85%) was also lower than that of the X sperm (9.7%).

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“…In spite of the above hypothesis, administration of GnRH at the time of mating improved luteal function as a result of the release of FSH and LH from the anterior pituitary (Hafez and Hafez, 2000). Additionally, improved ovulation synchronisation in does by reducing the variation of timing between sponge removal and LH surge from 40 to 26 hour (Pierson et al, 2003), increased the fertility in ewe (McMillan et al, 1986) and cow (Sheldon and Dobson, 1993).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, administration of GnRH at the time of mating improved luteal function as a result of the release of FSH and LH from the anterior pituitary (Hafez and Hafez, 2000). The endocrine effect of GnRH administration is a temporary increase in plasma progesterone and oestradiol concentrations, followed by a prolonged decrease in oestradiol concentrations.…”

Section: Introductionmentioning

confidence: 99%

Effect of supplementation of hCG or GnRH on ovulation and subsequentembryo production of eCG superovulated goats

Rahman

Khadijah

et al. 2016

IJAR

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The aim of this study was to enhance the ovulation and subsequent embryo production of equine chorionic gonadotrophin (eCG) superovulated goats by supplementing with human chorionic gonadotrophin (hCG) or gonadotrophin releasing hormone (GnRH). Thirty crossbred donor does were oestrus synchronized using controlled internal drug release (CIDR) device and superovulated using 1500 IU eCG. Then all the donor does were randomly divided into 3 groups. Group 1 were administered 500 IU hCG each at 2 successive days starting from 24 hours after CIDR removal; Group 2 received a single dosage of 20 µg GnRH and Group 3 was control. Ovulation and embryo production responses were evaluated during laparotomy session on Day 7 after CIDR removal. Does in Group 1 showed higher number of CL (10.90) than the Group 2 (1.90) or Group 3 (0.90). The number of ovarian stimulation and number of anovulatory follicles had no significant (P>0.05) differences among the treatment groups. Average number of structure recovered was significantly (P<0.05) higher in Group 1 (3.10) than Group 2 (0.70) or Group 3 (0.00). Moreover, average number of embryo production was higher in Group 1 (0.90) than Group 2 (0.50) and Group 3 (0.00), but no significant difference was observed between Group 1 and Group 2. Results indicated that using hCG hormone would be an effective means for increasing ovulation in eCG superovulated crossbred goats, although it was unable to enhance the embryo number due to increase number of unfertilised ovum.

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Horses

Cited by 49 publications

References 49 publications

Semen quality characteristics of Koekoek breeder cocks influenced by supplemental inclusion levels of onion and garlic mixture at 35-41 weeks of age

Semen quality characteristics of Koekoek breeder cocks influenced by supplemental inclusion levels of onion and garlic mixture at 35-41 weeks of age

Morphometry and abnormality evaluation of sex-sorted sperm of spotted buffalo (Tedong bonga)

Effect of supplementation of hCG or GnRH on ovulation and subsequentembryo production of eCG superovulated goats

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