The Effect of Conventional Semen, Sexed-Semen, and Embryo Transfer on Pregnancy Rate in Holstein Dairy Cows

Davut Koca; Ahmet Aktar; Ali Osman Turgut; Hakan Sağırkaya; Selim Alçay

Makale detayları

The Effect of Conventional Semen, Sexed-Semen, and Embryo Transfer on Pregnancy Rate in Holstein Dairy Cows

Yazarlar:

Davut Koca | Ahmet Aktar | Ali Osman Turgut | Hakan Sağırkaya | Selim Alçay

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Veterinary Sciences (Other)

Dergi:

Journal of Research in Veterinary Medicine Vol.42 Issue 2, pp.99-103

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001308988

pISSN:

2667-6745

Anahtar kelimeler:

Özet:

 In this study, it was aimed to detect the effects of conventional semen, sexed-semen and embryo transfer on pregnancy rates in Holstein dairy cows. In the study, a total of 139 healthy cows with the serum progesterone  8 ngml were used as animal material. Estrus synchronization protocol was applied and cows were divided into three different groups as conventional semen group G1, n46, sexed semen group G2, n47, and embryo transfer group G3, n46 considering age, body condition score, lactation number, and body weight. Cows in G1 and G2 were inseminated with conventional semen and sexed-semen, respectively. Embryo transfer was performed to cows in Group 3 n46 7th day after estrus. The embryos were transferred to recipients as freshly. Pregnancy examinations for the cows were conducted on the 30th and 60th days of gestation. The statistical analysis of the obtained results was performed. Pregnancy rates were detected as 50, 46,8 and 69,56 in G1, G2, and G3 respectively on 30th day. On 60th day, however, pregnancy rates were 45.60, 42.55 and 67.39 in G1, G2, and G3 respectively due to embryonic losses. The pregnancy rate was significantly higher in the embryo transfer group G3 compared to the conventional semen G1 and sexed-semen G2 group p0.05 on both 30th and 60th days. There was no significant difference between G1 and G2 p0.05. Findings led to the conclusion that higher serum progesterone level may increase pregnancy rate in cattle. In addition, it is evident that embryo transfer has the potential for widespread use in the field of veterinary medicine in terms of genetic progress.

 In this study, it was aimed to detect the effects of conventional semen, sexed-semen and embryo transfer on pregnancy rates in Holstein dairy cows. In the study, a total of 139 healthy cows with the serum progesterone  8 ngml were used as animal material. Estrus synchronization protocol was applied and cows were divided into three different groups as conventional semen group G1, n46, sexed semen group G2, n47, and embryo transfer group G3, n46 considering age, body condition score, lactation number, and body weight. Cows in G1 and G2 were inseminated with conventional semen and sexed-semen, respectively. Embryo transfer was performed to cows in Group 3 n46 7th day after estrus. The embryos were transferred to recipients as freshly. Pregnancy examinations for the cows were conducted on the 30th and 60th days of gestation. The statistical analysis of the obtained results was performed. Pregnancy rates were detected as 50, 46,8 and 69,56 in G1, G2, and G3 respectively on 30th day. On 60th day, however, pregnancy rates were 45.60, 42.55 and 67.39 in G1, G2, and G3 respectively due to embryonic losses. The pregnancy rate was significantly higher in the embryo transfer group G3 compared to the conventional semen G1 and sexed-semen G2 group p0.05 on both 30th and 60th days. There was no significant difference between G1 and G2 p0.05. Findings led to the conclusion that higher serum progesterone level may increase pregnancy rate in cattle. In addition, it is evident that embryo transfer has the potential for widespread use in the field of veterinary medicine in terms of genetic progress.

 In this study, it was aimed to detect the effects of conventional semen, sexed-semen and embryo transfer on pregnancy rates in Holstein dairy cows. In the study, a total of 139 healthy cows with the serum progesterone  8 ngml were used as animal material. Estrus synchronization protocol was applied and cows were divided into three different groups as conventional semen group G1, n46, sexed semen group G2, n47, and embryo transfer group G3, n46 considering age, body condition score, lactation number, and body weight. Cows in G1 and G2 were inseminated with conventional semen and sexed-semen, respectively. Embryo transfer was performed to cows in Group 3 n46 7th day after estrus. The embryos were transferred to recipients as freshly. Pregnancy examinations for the cows were conducted on the 30th and 60th days of gestation. The statistical analysis of the obtained results was performed. Pregnancy rates were detected as 50, 46,8 and 69,56 in G1, G2, and G3 respectively on 30th day. On 60th day, however, pregnancy rates were 45.60, 42.55 and 67.39 in G1, G2, and G3 respectively due to embryonic losses. The pregnancy rate was significantly higher in the embryo transfer group G3 compared to the conventional semen G1 and sexed-semen G2 group p0.05 on both 30th and 60th days. There was no significant difference between G1 and G2 p0.05. Findings led to the conclusion that higher serum progesterone level may increase pregnancy rate in cattle. In addition, it is evident that embryo transfer has the potential for widespread use in the field of veterinary medicine in terms of genetic progress.

 In this study, it was aimed to detect the effects of conventional semen, sexed-semen and embryo transfer on pregnancy rates in Holstein dairy cows. In the study, a total of 139 healthy cows with the serum progesterone  8 ngml were used as animal material. Estrus synchronization protocol was applied and cows were divided into three different groups as conventional semen group G1, n46, sexed semen group G2, n47, and embryo transfer group G3, n46 considering age, body condition score, lactation number, and body weight. Cows in G1 and G2 were inseminated with conventional semen and sexed-semen, respectively. Embryo transfer was performed to cows in Group 3 n46 7th day after estrus. The embryos were transferred to recipients as freshly. Pregnancy examinations for the cows were conducted on the 30th and 60th days of gestation. The statistical analysis of the obtained results was performed. Pregnancy rates were detected as 50, 46,8 and 69,56 in G1, G2, and G3 respectively on 30th day. On 60th day, however, pregnancy rates were 45.60, 42.55 and 67.39 in G1, G2, and G3 respectively due to embryonic losses. The pregnancy rate was significantly higher in the embryo transfer group G3 compared to the conventional semen G1 and sexed-semen G2 group p0.05 on both 30th and 60th days. There was no significant difference between G1 and G2 p0.05. Findings led to the conclusion that higher serum progesterone level may increase pregnancy rate in cattle. In addition, it is evident that embryo transfer has the potential for widespread use in the field of veterinary medicine in terms of genetic progress.

Makale detayları

The Effect of Conventional Semen, Sexed-Semen, and Embryo Transfer on Pregnancy Rate in Holstein Dairy Cows

Yazarlar:

Davut Koca | Ahmet Aktar | Ali Osman Turgut | Hakan Sağırkaya | Selim Alçay

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Veterinary Sciences (Other)

Dergi:

Journal of Research in Veterinary Medicine Vol.42 Issue 2, pp.99-103

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001308988

pISSN:

2667-6745

cattle reproduction

embryo transfer

sexed-semen

conventional semen

theriogenology

Sayı

Makale detayları

The Effect of Conventional Semen, Sexed-Semen, and Embryo Transfer on Pregnancy Rate in Holstein Dairy Cows

Yazarlar: Davut Koca | Ahmet Aktar | Ali Osman Turgut | Hakan Sağırkaya | Selim Alçay

Yayıncı: Bursa Uludağ University

Ana Başlıklar: Veterinary Sciences (Other)

Dergi: Journal of Research in Veterinary Medicine Vol.42 Issue 2, pp.99-103

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001308988

pISSN: 2667-6745

cattle reproduction

embryo transfer

sexed-semen

conventional semen

theriogenology

Sayı

Yazarlar:

Davut Koca | Ahmet Aktar | Ali Osman Turgut | Hakan Sağırkaya | Selim Alçay

Yayıncı:

Bursa Uludağ University

Ana Başlıklar:

Veterinary Sciences (Other)

Dergi:

Journal of Research in Veterinary Medicine Vol.42 Issue 2, pp.99-103

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001308988

pISSN:

2667-6745