The present study was conducted on the tongues of six Punjab white quails. The tissues from the apex, body and root of the tongue were processed for paraffin sectioning and scanning electron microscopy studies. The tongue was triangular in shape having an apex, body and root. The dorsal surface of the apex and body was smooth whereas large lingual conical papillae were located symmetrically and converging in median line between the body and the root. There was an additional layer of conical papillae composed of two large papillae behind the main row of papillae. The tongue was lined by stratified squamous epithelium which was keratinised at the apex. The anterior lingual salivary glands were mainly serous type whereas the posterior salivary glands were mucous type. There were topographical differences in the size, shape and appearance of the exfoliated superficial cells of the dorsal surface epithelium in the apex and body of the tongue.
The objective of this field study was to evaluate the effect of biotin and zinc sulphate (ZnSO 4) supplementation on hoof health and milk quality in lactating dairy cows. Clinically lame (n = 31) and healthy (n = 28) cows were selected on the basis of locomotion scores (LS), and were randomly assigned to either the 'treatment group' [clinically lame treatment (CLT) = 17 and healthy treatment (HT) = 15; supplemented with 1 g of 2% biotin and 4 g of ZnSO 4 daily for 4 mo] or the 'control group' [clinically lame control (CLC) = 14 and healthy control (HC) = 13]. Locomotion scores, body condition scores, and milk quality and yield were estimated before and after the end of the study. Also, hoof trimming was undertaken before and after the supplementation period, and claw lesions were observed for type and severity. Sole thickness (ST) was measured by ultrasonography in some of the back claws in treatment and control cows. Data were analyzed using likelihood ratio Chi-square and paired t tests. At the end of the study, there was a significant improvement in the LS (P<0.001); heel horn erosion score (P<0.05); overgrown sole score (P<0.001); and sole haemorrhage score (P<0.01) in the CLT cows. Some of these lesion scores deteriorated in the HC cows. Sole thickness increased in the CLT cows (P<0.05), whereas it decreased in the CLC cows (P<0.05). The milk somatic cell count (SCC) decreased (P<0.05), whereas milk yield (P<0.001) and fat content (P<0.05) increased in the CLT cows. A significant decline in the average SCC (P<0.05) in the HT was also observed. We concluded that concurrent supplementation with biotin and ZnSO 4 seems to be beneficial for correction and prevention of claw lesions, as well as improvement of milk quantity and quality in clinically lame dairy cows.
Three hundred and thirty-seven (337) crossbred dairy cows, at different stages of lactation and parity, from thirteen randomly selected dairy farms, were examined for locomotion score based on a five-point numerical scoring scale. Mild, moderate and severely lame cows were grouped together into the lame group and normal cows with locomotion score '0' into the healthy non-lame group. Body condition score (BCS) in all the animals was also evaluated on a five-point scale ranging from 1 to 5. Cows having cow hock rear leg view (RLV) were assigned score '1', and score '0' for those with normal hocks. A quarter foremilk (QFM) and cow composite (CC) sample were collected from each cow maintaining aseptic conditions. QFM was used to determine the quarter health status of the cows, and CC for estimation of somatic cell count (SCC) and milk composition, in terms of fat, SNF, protein and lactose. It was concluded that lame cows had significantly (P<0.01) more milk SCC and poor quarter health status as compared to healthy cows. RLV increased with increasing lameness, although it did not affect milk SCC and composition. Likewise, milk composition was not affected by lameness. Lame cows had poor BCS, indicating a negative correlation with lameness.
The study was conducted in Ludhiana District of Punjab (India) to understand the organic waste management practices followed by dairy farmers of the area. To investigate the practices pertaining to organic waste management, an ex-post facto research design was used and a total of 80 dairy farmers were selected randomly for the study, grouped as small and large dairy farmers. Results revealed that the majority of the farmers were using paddy straw as animal bedding followed by in situ burning. As far as paddy stubbles were concerned, most of the farmers were mulching them followed by in situ burning. All farmers were found to be using wheat straw as livestock feed and mulching wheat stubbles. For household waste, the majority of the farmers were found to be feeding kitchen waste to their livestock, preparing farmyard manure from garden waste and paper waste. For dairy waste management, all the farmers were preparing farmyard manure from dung and discarding livestock urine in drains. A little more than half of the farmers were producing biogas from the dairy waste. The majority of the dairy farmers of the research area were found to have low organic waste utilization scores. Relational analysis was carried out and social participation and knowledge level were found to be highly significant ( p < 0.01) with a positive effect on the organic waste utilization score. Therefore, the study was concluded with the impression that the knowledge level of the farmers needs to be enhanced for better and effective utilization of organic waste.
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