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    Changes in gross chemical compositions of ewe and goat colostrum during ten days postpartum
    (Taylor & Francis Ltd, 2007) Keskin, Mahmut; Guler, Zehra; Gul, Sabri; Bicer, Osman
    This study was carried out to determine the exact 'Colostrum producing period' in Awassi ewes and Shami (Damascus) goats in Hatay province of Turkiye based on changes in gross composition of milk during 10 days postpartum. Goats produced high crude protein and fat milk for 3-5 days postpartum. Whereas, in ewes it was 3 days. Ewe's colostrum was richer in respect to total solids (TS), crude protein (CP), fat, lactose and ash as compared to goat's colostrum. It is recommended that first three days milk (colostrum) must be fed to kids / lambs for maximum benefits.
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    Effects of breed and lactation period on some characteristics and free fatty acid composition of raw milk from Damascus goats and German fawn x Hair goat B1 crossbreds
    (Tubitak Scientific & Technological Research Council Turkey, 2007) Gueler, Zehra; Keskin, Mahmut; Masatcioglu, Tugrul; Gul, Sabri; Bicer, Osman
    The effects of breed and period of lactation on milk composition were investigated. For this purpose, 8 crossbred (3/4 German fawn 1/4 Hair goat) and 10 Damascus goats were kept under identical management conditions. Lactation period affected milk yield and milk composition in both goat breeds. Milk yield, lactation duration, and mean solid and fat values showed differences between the breeds. The mean values of total solid and fat of milk during lactation were 13.82 +/- 0.294% and 4.55 +/- 0.223% for the crossbreds, and 12.90 +/- 0.179% and 4.02 +/- 0.142% for Damascus goats, respectively. Although the percentages of short-chain free fatty acids (FFAs) (C-4 to C-8) in the milk of both breeds did not change during lactation, the other FFAs (C-10-C-18:3) significantly varied (P <= 0.05, P <= 0.01). The results showed that hexadecanoic (C-16), 9-octadecenoic (C-18:1), octadecanoic (C-18.), tetradecanoic (C-14)()), decanoic (C-10), and decanoic (C-12) FFAs were the most predominant FFAs in the milk of both breeds from March through September, but octadecanoic acid and tetradecanoic acid shifted during the last 2 months of lactation.
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    Milk-y Way: the impact of single-nucleotide polymorphisms on milk production traits in Kilis dairy goats
    (Copernicus Gesellschaft Mbh, 2023) Gunduz, Zuhal; Bicer, Osman
    This study aimed to investigate the impact of single-nucleotide polymorphisms (SNPs) on milk production traits in Kilis dairy goats by analyzing the genotypes of POU1F1, PRLR, beta -Lg, GH1, and GH2 genes and their association with lactation milk yield (LMY), lactation length (LL) and average daily milk yield (ADMY). Blood samples were collected from 227 goats, and genotyping was performed using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). The results revealed that the frequencies of the genotypes varied among the genes. The polymorphisms were found to be significantly linked with milk production traits. These findings suggest that SNPs of POU1F1/AluI, PRLR/RsaI and beta -Lg/SacII are significantly associated with LMY and that the POU1F1-TC genotype, PRLR-TT genotype and beta -Lg-AB genotype are associated with higher LMY and ADMY. Additionally, the POU1F1-TC genotype was found to have a longer LL. However, no significant association was found between the GH1 and GH2 genotypes and LMY, LL and ADMY. Overall, this study provides valuable insights into the genetic factors influencing milk production traits in Kilis dairy goats, which can be utilized for the selection of high-yielding animals in breeding programs.
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    Some cashmere characteristics of German Fawn x hair goat (B1) crossbreds and Shami (Damascus) goats of the eastern Mediterranean region
    (Tubitak Scientific & Technological Research Council Turkey, 2007) Keskin, Mahmut; Bicer, Osman; Gul, Sabri
    This study was carried out with Damascus (Shami) goats and German Fawn x Hair goat (B,) crossbreds at Mustafa Kemal University. Animals were housed in semi-open sheds under semi-intensive conditions. Both groups were fed 600 g/head per day of concentrate and grazed in a pasture during lactation. Moulted cashmere was harvested by combing in February, March, and April, 2005. at 14-day intervals. The dimensions of cashmere fibres were determined by measuring 25 cashmere fibres from each goat using a Visopan microscope; fibre length was measured with a ruler. Mean diameter and length of cashmere for Shami and the crossbreds was calculated as 13.5 +/- 0.1 pm and 18.3 +/- 0.2 cm, and 12.6 0.1 pm and 18.5 +/- 0.2 cm, respectively. Results also revealed that both diameter and length of cashmere showed considerable variation for both genotypes across the moulting days during the season.